阅读说明：本技术 开重瓣花的五星花属植物及其培育方法 (Plant of the genus pentacta with double petal and its cultivation method ) 是由 中川雅博 鸟居昭宏 于 2018-05-17 设计创作，主要内容包括：目的在于制成小花具有分量感、观赏价值高的开重瓣花或开半重瓣花的五星花属植物,提供具有进行单因子不完全显性遗传的开重瓣花的基因的五星花属植物、其培育方法、和对五星花属品种赋予开重瓣花或开半重瓣花的表现型的方法。(Aims to provide a plant of the genus Chrysanthemum having a gene for a flowering petal which is inherited by incomplete dominance of a single factor, a method for breeding the plant, and a method for imparting a phenotype of the flowering petal or the flowering half petal to a variety of the genus Chrysanthemum.)

1. Plant of the genus pentaastrium, characterized by having the gene for the opening of the double petal.

2. The plant of the genus pentaastrium as claimed in claim 1, wherein the gene of the petaloid is a single-factor incompletely dominant gene.

3. The plant of the genus pentaastrus according to claim 1 or 2, wherein the gene of the petaloid is a gene possessed by the genus pentaastrus specified under accession number FERM BP-22361.

4. The plant of the genus pentaastrium according to any one of claims 1 to 3, characterized in that it has a gene that opens double petals homozygously.

5. The plant of the genus pentaastrium as claimed in claim 4, wherein the phenotype of the blooming petal is displayed.

6. The plant of the genus pentaastrium according to any one of claims 1 to 3, characterized in that it has the gene for the dehiscence of the double petal flower heterozygously.

7. The plant of the genus pentaastrium of claim 6, which displays a phenotype of blooming petaloids.

8. The plant of the genus pentacta according to any one of claims 1 to 7, being of a sexual reproductive line.

9. The plant of the genus pentacta according to any one of claims 1 to 7, being of a clonal line.

10. The plant or part of a plant of the genus pentacta of any one of claims 1 to 9.

11. The plant body or part of a plant body of a plant of the genus pentaastrum of claim 10, wherein the part of the plant body of a plant of the genus pentaastrum is an anther, flower or stem of a leaf, pollen, embryo, cotyledon, hypocotyl, meristematic cell, ovule, seed, cell, root tip, pistil, stamen.

12.A method for breeding a plant of the genus pentacta having a gene for flowering a petal, comprising the following steps (1) and (2),

a step (1) of artificially crossing the plant of the genus pentacta according to any one of claims 1 to 9 with any plant of the genus pentacta,

and (2) selecting a plant of the genus pentacta having a gene for blooming petals from the plants of the genus pentacta obtained by the artificial hybridization in the step (1).

13. A method for imparting a phenotype of a petal-opening or a half-petal-opening to a variety of the genus Asteris, characterized by comprising the following steps (1) to (4), wherein the steps (3) and (4) are performed a plurality of times,

a step (1) of artificially crossing the plant of the genus pentacta according to any one of claims 1 to 9 with a variety of the genus pentacta to which a phenotype of a blooming petal or a half-blooming petal is to be imparted,

a step (2) of selecting a plant of the genus pentacta having a gene for flowering a double petal from the plants of the genus pentacta obtained by the artificial hybridization in the step (1),

a step (3) of artificially crossing the plant of the genus pentacta obtained by the screening in the step (2) or (4) with the variety of the genus pentacta used in the step (1),

and (4) selecting a plant of the genus pentacta having a gene for blooming petals from the plants of the genus pentacta obtained by the artificial hybridization in the step (3).

Technical Field

The present invention relates to plants of the genus pentaastrus having the gene for the opening of the petals.

Background

As horticultural species that continue to flower in flower beds in summer, there are known, for example, zinnia, vinca, and purslane, but in recent years, new flower species having further heat resistance are desired due to the influence of abnormal weather or the like.

The genus pentaastrus (Pentas Benth) is a high-temperature plant of Rubiaceae (Rubiaceae) wild in tropical regions from eastern regions of africa to southern regions of arabian peninsula, which was brought into europe in 1842, and a record of cultivated species (pentaastrus, Pentas lancelata) was cultivated, and propagated by cuttings or seeds. The flowers of the genus Aralia are terminal, and about 20-60 small flowers form an umbrella chamber inflorescence with the diameter of about 6-10 cm. And simultaneously blooming about 15-25 small flowers to form hemispherical crowns. As its source of its scientific name, the florets are clear 5-split star-shaped petals, and are basically cylindrical in shape with a diameter of about 1.5cm and a length of 2-3 cm. Red, pink, white, lavender, etc. are known for flower colors, and flower colors are classified into single (single) and double (double) according to the examination criteria for the registration of varieties (non-patent document 1), and under the classification of double, half-double varieties are registered for the actual varieties (non-patent documents 2 and 3).

Documents of the prior art

Patent document

Patent document 1 International publication 2017/048547

Non-patent document

Non-patent document 1: agricultural, forestry, aquatic product province variety logging homepage, examination standard, five-star flower genus < URL: http:// www.hinshu2.maff.go.jp/info/sinsakijun/kijun/1464.pdf >

Non-patent document 2, agriculture, forestry, aquaculture, province breed login homepage, login breed data, "ライカディープピンク", login number 22999, < URL: http:// www.hinshu2.maff.go.jp/viss/cmm/apcmm 112. aspx? TOUROKU _ NO 22999& LANGUAGE Japanese >

Non-patent document 3, agriculture, forestry, aquaculture, breed Login homepage, Login breed database, "プリンセスエミ", Login number 10100, < URL: http:// www.hinshu2.maff.go.jp/vips/cmm/apcmM112. aspxtourkU _ NO ═ 10100& Language >

Disclosure of Invention

Problems to be solved by the invention

Although there have been known single petals (single petals) and semi-double petals (semi-double petals) in the flower type of the genus pentacta, the major variety in the market of the genus pentacta is still single petals in recent years, and the semi-double petal variety is not widely used.

This is because the existing variety which has been conventionally classified into a double petal type has 2 petals, is substantially a half petal type, and is not really used for breeding even though there are several varieties, and therefore, a variety having a double petal type exhibiting a volume feeling is not further found.

In general, a plant having a double-petal flower pattern is not only a commercially valuable variety but also a female parent for breeding to impart the double-petal trait. In particular, if the double-petaloid property is inherited as single-factor dominance, the trait can be easily passed on to the progeny by crossing, and therefore the usefulness as a breeding female parent is further increased.

Means for solving the problems

The present inventors have conducted intensive studies to solve the above problems, and as a result, have found that a conventional half-petaloid variety (double-petaloid flower) has an inferior genetic trait, and that an incompletely dominant gene that makes petals of a plant of the genus pentaplosis a single factor of a blooming flower (more than three flowers) is different from the above, and a method for breeding a plant of the genus pentaplosis of a blooming flower using a plant of the genus pentaplosis having the gene. The present invention has been completed based on these findings.

That is, the present invention provides the following [ 1 ] to [ 13 ].

[ 1 ] A plant of the genus pentacta, which has a gene for blooming petals.

[ 2 ] the plant of the genus pentacta according to [ 1 ], wherein the gene that opens the double petal is a single-factor incompletely dominant gene.

[ 3 ] the plant of the genus Pentium according to [ 1 ] or [ 2 ], wherein the gene that opens double petals is a gene belonging to the genus Pentium specified in accession number FERM BP-22361.

[ 4 ] the plant of the genus pentacta according to any one of [ 1 ] to [ 3 ], wherein the plant has a gene that opens double petals homozygously.

[ 5 ] the plant of the genus pentacta according to [ 4 ], wherein the phenotype of blooming petals is shown.

[ 6 ] the plant of the genus pentacta according to any one of [ 1 ] to [ 3 ], wherein the plant has a gene that opens double petals heterozygously.

[ 7 ] the plant of the genus pentacta according to [ 6 ], wherein the phenotype of the opened half-double petals is shown.

[ 8 ] the plant of the genus pentacta according to any one of [ 1 ] to [ 7 ], which is sexually propagated.

[ 9 ] the plant of the genus pentacta according to any one of [ 1 ] to [ 7 ], which is asexually propagated.

[ 10 ] the plant or part of a plant of the genus pentacta according to any one of [ 1 ] to [ 9 ].

[ 11 ] the plant body or part of a plant body of a plant of the genus pentacta according to [ 10 ], wherein the part of the plant body of a plant of the genus pentacta is an anther, flower or stem of a leaf, pollen, embryo, cotyledon, hypocotyl, meristematic cell, ovule, seed, cell, root tip, pistil or stamen.

[ 12 ] A method for breeding a plant of the genus pentacta having a gene for opening a double petal, comprising the following steps (1) and (2),

a step (1) of artificially crossing any one of the plants of the genus pentacta according to any one of [ 1 ] to [ 9 ] with any one of the plants of the genus pentacta,

and (2) selecting a plant of the genus pentacta having a gene for blooming petals from the plants of the genus pentacta obtained by the artificial hybridization in the step (1).

[ 13 ] A method for imparting a phenotype of a petal-opening or a petal-opening to a variety of the genus pentacta, characterized by comprising the following steps (1) to (4), wherein the steps (3) and (4) are performed a plurality of times,

step (1) of artificially crossing a plant of the genus pentacta according to any one of [ 1 ] to [ 9 ] with a variety of the genus pentacta to which a phenotype of blooming petals or half-blooming petals is to be imparted,

a step (2) of selecting a plant of the genus pentacta having a gene for flowering a double petal from the plants of the genus pentacta obtained by the artificial hybridization in the step (1),

a step (3) of artificially crossing the plant of the genus pentacta obtained by the screening in the step (2) or (4) with the variety of the genus pentacta used in the step (1),

and (4) selecting a plant of the genus pentacta having a gene for blooming petals from the plants of the genus pentacta obtained by the artificial hybridization in the step (3).

ADVANTAGEOUS EFFECTS OF INVENTION

By using the plant of the genus pentacta having a novel gene for a double petal as provided by the present invention for breeding, a plant of the genus pentacta having a petal with a sense of quality and a high ornamental value, which has not been obtained before, having a novel gene for a double petal, can be stably produced.

Drawings

FIG. 1 is a photograph showing the morphology of florets of the plant of the genus Asterina of the present invention and a commercially available variety of the genus Asterina. パニックタワーピンク (パニックタワー pink, commercial variety), ライカローズ (ライカ rose, commercial variety), Db1-4 (double-petal individual) and Db-3 (half-double-petal individual) are shown from the left in the upper panel, and パニックタワーピンク (パニックタワー pink, commercial variety), ライカ ホ ワ イ ト (ライカ white, commercial variety), Db1-4 (split-double-petal individual) and Db-3 (split-half-double-petal individual) are shown from the left in the lower panel.

FIG. 2 is a photograph showing the morphology of decomposed florets of the plant of the genus Asterina of the present invention and a commercially available variety of the genus Asterina. パニックタワーピンク (powder パニックタワーピンク, commercially available variety), ライカローズ (ライカ rose, commercially available variety), Db1-4 (individual with double petals) and Db-3 (individual with half petals) are shown from the left in the upper panel, and パニックタワーピンク (powder パニックタワー, commercially available variety), ライカ ホ ワ イ ト (white ライカ, commercially available variety), Db1-4 (individual with double petals) and Db-3 (individual with half petals) are shown from the left in the lower panel.

FIG. 3 is a photograph showing the morphology of the flowers (clusters) of the plant of the genus Asteraceae of the present invention and a commercially available variety of the genus Asteraceae. パニックタワーピンク (パニックタワー pink, commercially available), ライカローズ (ライカ rose, commercially available), Db1-4 (individual with double petals), Db-3 (individual with double petals), パニックタワーピンク (パニックタワー pink, commercially available), ライカ ホ ワ イ ト (ライカ white, commercially available), Db1-4 (individual with double petals), Db-3 (individual with double petals) are shown from the left in the upper panel.

Detailed Description

The present invention will be described in detail below.

The "plant of the genus asterias" in the present invention refers to a plant belonging to the genus asterias (Pentas Benth).

In the invention, the flowers of the plant of the genus Arachis are terminal and 20-60 small flowers form an umbrella house inflorescence with the diameter of about 6-10 cm. And simultaneously blooming about 15-25 small flowers to form hemispherical crowns. In the present invention, unless otherwise specified, the term "flower" means not all of the hemispherical crowns but individual "florets" constituting the crowns.

In the case of a single petal, the florets of the plant of the genus asterias usually have 5-split single petal petaloid flowers as the source of the scientific name, are in a clear 5-split star shape, are tubular with a diameter of about 1.5cm and a length of 2-3 cm, and include long stigmata flowers and short stigmata flowers. Colors such as red, pink, white, and light purple are known.

The term "double-petal" as used herein means a state in which the number of petals is 3 or more, and is also referred to as full-double or complete double-petal. Among them, since the genus pentaastrium is a petal flower, petals in a general flower (petal-shaped flower) are integrated to form 1 cylindrical petal. Therefore, "the number of petals is 3 or more" means that the number of cylindrical petals is 3 or more.

In the present invention, "double petal flower" means that petals are in a state of double petals when the flower is opened.

The "half-double petal" in the present invention refers to a state in which the number of petals is more than 1 and 2 or less, that is, 2 petals, and is also referred to as semi-double.

The term "half-double petal opening" as used herein means that petals are in a half-double petal state when the flowers are opened.

The "petaloid gene" in the present invention means a gene capable of causing the phenotype of the genus pentacta to be a petaloid.

The "sexual propagation line" in the present invention means a plant which is propagated by sowing seeds of a parent plant, that is, a plant body obtained by a seed propagation method.

The "vegetative propagation line" in the present invention means a plant having the same genotype obtained by propagating a part of the plant of the parent strain, that is, by a vegetative propagation method.

"Artificial crossing" in the present invention means that a pollen parent is artificially crossed with a seed parent, and for example, means that pollen is artificially collected from a pollen parent and the pollen is artificially attached to a stigma of a seed parent.

(A) Plant of the genus asterias with genes that open double petals

The plants of the genus asterias of the present invention are characterized by having a gene that opens double petals.

The petaloid flower gene includes a gene belonging to the genus pentasil, the seeds of which are deposited as described below (hereinafter, this gene may be referred to as "deposited petaloid flower gene").

The preservation organization: IPOD, NITE-national advanced Industrial science and technology institute, International patent organism depositary (Kyowa county, Kyoto City general falcon 2-5-8120)

The preservation number is as follows: FERM BP-22361

Preservation day: 3, month and 16 days 2018

The kind of deposit: international deposit

The deposited gene of the double petal is a single-factor incomplete dominant gene, individuals having the gene of the double petal in a homozygous manner show the phenotype of the double petal, and individuals having the gene of the double petal in a heterozygous manner show the phenotype of the half-double petal.

The plant of the genus pentaastrium of the present invention has a double-petal or half-double-petal trait, and the traits other than this (for example, the height of the crop growth, the size of the corolla, the shape of the corolla split, the flower color, and the like) are not particularly limited. Red, pink, white, light purple, and the like are known as the flower color of the genus asterias, and the plant of the genus asterias of the present invention may be any of these flower colors or other than these flower colors.

The plant of the genus asterias of the present invention includes not only a plant body of the plant of the genus asterias but also a part of a plant body of the plant of the genus asterias. Examples of the plant include organs, tissues, cells, vegetative propagation bodies, and callus. Examples of the organ include a flower, a leaf, a stem, a root, a seed, and the like. The tissue and cell include tissues and cells constituting flowers, leaves, stems, roots and seeds, and specifically include pollen, embryos, cotyledons, hypocotyls, meristematic cells, ovules, root tips, pistils and stamens of anthers. Preferred examples of the plant body of the plant of the genus pentaastrum include anthers, flowers and stems of leaves, pollen, embryos, cotyledons, hypocotyls, meristematic cells, ovules, seeds, cells, roots, root tips, pistils and stamens.

(B) Method for cultivating plant of genus pentacta with gene of opening double petal

The method for breeding a plant of the genus pentacta having a gene for opening a double petal according to the present invention is characterized by comprising the following steps (1) and (2),

step (1) of artificially crossing the plant of the genus pentacta having the above-mentioned gene for opening the double petal with an arbitrary plant of the genus pentacta,

and (2) selecting a plant of the genus asterias from the plants of the genus asterias obtained by the artificial hybridization in the step (1), which has a gene for flowering a petal.

The plant of the genus pentaastrium having the gene for the petal opening is not particularly limited, and a plant having the gene for the petal opening homozygously or a plant having the gene for the petal opening heterozygously may be used. In the case of using a plant of the genus pentaastrus that homozygously has a gene for petaloid, there is an advantage that screening is easy because all of the individuals obtained by artificial crossing theoretically have the gene for petaloid. On the other hand, in the case of using a plant of the genus pentacta heterozygously having a gene for dehiscence of a petaloid flower, there is an advantage that artificial hybridization is easy. This is because the reproductive organs such as stamens and pistils of the plant of the genus pentaastrium having the gene for the double petal in a homozygous state are often abnormal, and the plant of the genus pentaastrium having the gene for the double petal in a heterozygous state is often free from such abnormality or slightly abnormal.

As the optional plant of the genus Asterina, an existing variety of the genus Asterina, etc. can be used. Further, as the arbitrary plant of the genus pentaastrus, plants of the genus pentaastrus having a gene for blooming petal may be artificially crossed with each other.

The artificial hybridization can be carried out according to a conventional method.

The selection of the plant of the genus pentacta having the gene for the flowering petal can also be performed according to a conventional method. Since the deposited gene of the opened petaloid flower is an incompletely dominant gene, the gene appears as a phenotype, and thus can be screened based on its phenotype (heavy or semi-heavy).

(C) Method for endowing variegated asterias or semipetaloides with phenotype

The method for imparting a phenotype of a petal-opening or half-petal-opening to a variety of the genus pentacta of the present invention is characterized by comprising the following steps (1) to (4) and by performing the steps (3) and (4) a plurality of times,

step (1) of artificially crossing the plant of the genus pentacta having the gene for flowering the petals with a variety of the genus pentacta to which the phenotype of the flowering petals or the semiflowering petals is to be imparted,

a step (2) of selecting a plant of the genus pentacta having a gene for flowering a double petal from the plants of the genus pentacta obtained by the artificial hybridization in the step (1),

a step (3) of artificially crossing the plant of the genus pentacta obtained by the screening in the step (2) or (4) with the variety of the genus pentacta used in the step (1),

and (4) selecting a plant of the genus asterias from the plants of the genus asterias obtained by the artificial hybridization in the step (3), which has a gene for flowering the petals.

The species of the genus asterias to be used is not particularly limited, but it is preferable to use a species that has an increased commodity value or the like by giving a phenotype of the opened petaloid flower or the opened half-petaloid flower.

The same procedure as in the "method for breeding a plant of the genus asterias with a gene that opens double petals" can be used for the plant of the genus asterias with a gene that opens double petals, and the artificial hybridization and screening can be performed in the same manner as in the "method for breeding a plant of the genus asterias with a gene that opens double petals" described above.

The number of steps (3) and (4) may be the same as that of the ordinary continuous backcross, and may be, for example, about 2 to 8 times.

Examples

The present invention is illustrated in more detail by examples. The present invention is not limited to these embodiments, and encompasses the claims and all of the contents within the scope equivalent to the claims.

Example 1 (cultivation of half-bivalve System)

In this example, a large number of systems were produced by crossing a pentacta system showing a large number of petals and a stock system, and an individual showing a triple or more petal number was selected from among the systems, and the offspring thereof was examined for the petal number.

In 2004, the flower bed seedling producer of the western region of yichuangkoting, the shenhu city, the tribe seedling of the trogopterus was found to have an individual with a double petal (half-double petal) number from a single petal commercial variety "ニュールックローズ (ニュールック rose)" of the genus pentacta, and named as individual 04K 0-1. This individual 04K0-1 was crossed with 5 commercial cultivars with different flower colors as shown in Table 1, and 5 lines of F1 seeds were obtained by 2007 and named as a line Db group. The obtained F1 seeds were sown in 12 months in 2007, and as a result, individuals showing half-bivalve traits were confirmed in their respective offspring, and individuals were screened, and the systematic names were respectively named Db-1, Db-2, Db-3, Db-4, and Db-5, and F2 seeds were collected.

Example 2 (cultivation of the System of the invention relating to the heavy petals and comparison with the conventional Properties)

Then, F2 seeds of the Db group 5 system were sown, and as a result, 10 individuals showing a heavy petal trait with a large petal number appeared from each group, 10 individuals were selected in 2011 and named Db-1a, Db-2a, Db-3b, Db-3c, Db-4a, Db-4b, Db-5a, Db-5b, and Db-5c, respectively, and stored as clonal strains (Table 1).

TABLE 1 cultivation of systematic Db population

In 2012, the screened double-petal individuals were crossed with Sg-1 having a safflower color, Sg-2 having a pink color and Sg-3 having a white color as shown in Table 2, using the single-petal system, to obtain progeny seeds, which were all combined and named as the system Db1 population. In addition, the existing double-petal variety (ライカ line) and single-petal system are crossed, and the 3 combinations can obtain the offspring seeds. As a result, as shown in Table 2, all of the 3 individuals of the 10 individuals of the screened double-petal individuals, namely, the offspring of Db-2a, Db-3a and Db-5a were half-double-petal and the offspring of the remaining 7 individuals were single-petal and half-double-petal separated. On the other hand, all of the 3 combinations of individuals investigated, which were able to be investigated by the ライカ series and the progeny of the single-petal system Sg-1, Sg-3, were single-petal.

TABLE 2 cultivation of the Db1 population in System and hybridization results with the Single-Strand System

The "-" in the table indicates that no normal seeds were obtained and could not be investigated.

This suggests that the trait of the double petal derived from individual 04K0-1 is dominant, and that 3 individuals Db-2a, Db-3a and Db-5a, in which all progeny became double petals, had the gene of the double petal flower homozygously, and the remaining 7 individuals had the gene of the double petal flower heterozygously. On the other hand, the trait of the half-double lobe of line ライカ was poor, suggesting that the gene derived from individual 04K0-1 was a new gene of the petaloid flower, which was different from the known gene of line ライカ.

Example 3 (genetic model of the inventive System relating to heavy valves)

From 2015 to 2016, individuals of Db1-17 and Db1-5, which showed the half-double flap trait, were crossed with each other in the systematic Db1 population to obtain seeds. The progeny seeds obtained in 2017 were sown, and as a result, the numbers of individuals of double (triple) or more, half double (double) and single (single) petals were separated as shown in the following table 3, and they showed a ratio of approximately 1: 2: 1.

TABLE 3 results of hybridization of half-bivalve individuals with each other

The values in () in the table represent ratios.

This result suggests that the newly discovered gene of the double petal has the feature of incomplete dominance of a single factor, forms a full-double petal (full-double) having a number of petals of three or more by having the gene homozygously, and forms a half-double petal (semi-double) by having the gene heterozygously.

Example 4 (creation of multiple design and color System Using the Properties of the invention)

The flower color of the system Db population developed since 2007 ranged from rosy to bland pink (table 1). Among the groups of the system Db1 produced in 2012, individuals with split-half petals of safflower color and other colors were found to be separated from individuals with split-half petals among the offspring derived from Db1-5, Db1-8 and Db1-17 of Sg-1 having safflower color, and individuals with split-half petals of white-to-pink-color flower color were found to be separated from individuals with split-half petals among Db1-3, Db1-14 and Db1-15 of Sg-3 having white-to-pink-color flower color (Table 2). In view of this, the newly discovered gene of the double petal flower is a trait that is inherited independently of flower color, and by using this gene, it is possible to produce individuals having completely double petal flower and half double petal flower of all flower colors, such as red, rose, pink, and white.

When a conventional inferior gene is used, only a half-double-flap trait can be produced, and breeding thereof requires screening of the gene in a homozygous manner. Therefore, the width of the combined system is difficult to expand, and a lot of labor is required for a long time. However, the use of the novel incompletely dominant gene of the present invention enables efficient production of a petal-opening trait. Furthermore, by heterozygously having the gene, it is expected that F1 cultivars having a wide range of combinations of half-fold traits can be efficiently produced in a short time.

Example 5 (cultivation of a clonal variety Using the traits of the present invention)

In 2015, from the group of the system Db1, inbred seeds of individuals with split-half petals of each of the systems Db1-3, Db1-4, Db1-5, Db1-6, Db1-7, Db1-8, Db1-16 and Db1-17 were collected and sown for F2 generations, resulting in flower colors having a color range as shown in FIG. 2, and various individual separations with single, half and double petals can be seen in the flower patterns. Therefore, 12 strains having a complete pattern with a double-petal trait, tillering (strain り), and good flowering habit were selected in total and stored as clonal strains. In 2017, the stored individuals were propagated by cuttings, and as a result, they rooted and grown in the same manner as in the general genus pentacta, and cuttings were obtained. The obtained cuttings were transplanted into 10.5cm pots, evaluated for branching, elongation at pitch, flowering habit, and then transplanted into open fields in order to investigate their growth. As a result, 2 individuals having dark pink and white flower colors showed particularly excellent flowering habit in pot culture and open field, and therefore, for these individuals, it was considered that the breeding was completed. Thus, a cultivar of the genus pentacta with the initial clone of the full petaloid can be cultivated.

All publications, patents and patent applications cited in this specification are herein incorporated by reference as if fully set forth.

Industrial applicability of the invention

The small flowers of the plant of the genus asterias have sense of quality and high ornamental value. In addition, a trait such as a double-petaloid trait indicates that a single factor is not completely dominant and can be easily transferred to a progeny, and therefore the plant of the genus pentacta of the present invention is also useful as a breeding female parent. Therefore, the plant of the genus asterias of the present invention can be utilized in various gardening-related industrial fields including the germchit industry.