Multicellular living organisms and unmodified parts thereof and – Plant – seedling – plant seed – or plant part – per se – Higher plant – seedling – plant seed – or plant part
Reexamination Certificate
2000-12-08
2003-07-29
Fox, David T. (Department: 1638)
Multicellular living organisms and unmodified parts thereof and
Plant, seedling, plant seed, or plant part, per se
Higher plant, seedling, plant seed, or plant part
C800S260000, C800S266000, C800S268000, C800S269000, C435S430100
Reexamination Certificate
active
06600092
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a novel plant species
ssamchoo
and to the breeding method thereof. More particularly, the present invention relates to a novel plant species
ssamchoo
which was developed by aneuploid breeding method between Chinese cabbage and cabbage and to the breeding method of
ssamchoo.
2. Description of Prior Art
In some cases, in Korea, Chinese cabbage is eaten uncooked, but in usual cases, eaten as kimchi. When eating cabbage as leaf-wrapped rice or fresh salad, the elliptical shape, rigid stalks and oval shapes of cabbage leaves are problems and not so convenient for eating. Though the above problem is not apparent in lettuces particularly in the case of lettuce-wrapped rice, it is not so suitable for salad, either.
Upon consideration of the above points, in order to obtain a novel plant species that can be used as a substitute for lettuce and as the material for salad, the inventors achieved the present invention
ssamchoo
in the way by crossing as seed parent the plant selected through 5th generation of aneuploid (2n=25) obtained by repeatedly crossing the sesquidiploid with Chinese cabbage, which was obtained by crossbreeding a hybrid between Chinese cabbage and cabbage with Chinese cabbage with as pollen parent the plant selected through 5th generation of aneuploid (2n=26) obtained by repeatedly crossing the sesquidiploid generation with Chinese cabbage, which was obtained by crossbreeding a hybrid between Chinese cabbage and cabbage with Chinese cabbage, and investigated the chromosome number of it to be 2n=40.
That is, the chromosome number of ordinary Chinese cabbage is 2n=20, the chromosome number of cabbage is 2n=18, the chromosome number of leaf mustard is 2n=36 and the chromosome number of rape is 2n=38, but that of novel plant species invented by the present inventor is 2n=40 and it is a nonexistent plant even now.
Consequently, the purpose of the present invention is to provide novel plant species developed from a hybrid between Chinese cabbage and cabbage with Chinese cabbage by a aneuploid breeding method.
Another purpose of the present invention is to provide the breeding method of the above novel plant species
ssamchoo.
SUMMARY OF THE INVENTION
With the background in mind, the present invention is aimed to provide a novel plant species,
ssamchoo.
Another object of the present invention is to provide the breeding method of a novel plant species,
ssamchoo.
The purpose of the present invention was accomplished by developing the novel plant in the way of crossing B
2
F
5
as seed parent selected through 5th generation of aneuploid (2n=25) obtained by repeatedly crossing the sesquidiploid with Chinese cabbage, which was obtained by crossbreeding a hybrid between Chinese cabbage and cabbage with Chinese cabbage with the plant as pollen parent selected through 5th generation of aneuploid (2n=26) obtained by repeatedly crossing the sesquidiploid with Chinese cabbage, which was obtained by crossbreeding a hybrid between Chinese cabbage and cabbage with Chinese cabbage, and accomplished by investigating the feature of novel plant species and then by growing plant having the genetically equal chromosome number of 2n=40 from tissue culture in part.
REFERENCES:
Anonymous. Version 4, Jan. 2002.Brassica leeandssamchoosearch. 4 web pages pages. USDA-ARS GRIIN Taxonomy. http://www.ars-grin.gov
pgs/tax/index.html.*
Anonymous. Version 5, Nov. 2001.Brassica lee, Brassica lee ssp. namai, andssamchoosearch. The International Plant Names Index. 8 web pages. http://www.ipni.org/.*
Anonymous. Version 23, Aug. 2000.Brassica leeandssamchoosearch. The International Association of Plant Technology Registration of Plant Names Index. 6 web pages. http://bgbm.fu-berlin.de/iapt/.*
Jahier et al. 1989. Extraction of disomic addition lines ofBrassica napus-B. nigra. Genome 32(3):408-413.*
Kalasa-Balicka et al. 1985. Characterization of syntheticBrassica napus L.(B. campestris ssp. pekinensis cv Granaat x B.oleracea ssp. acephala cv.Normal). Genetica Palonica 26(4):447-456.*
Namai et al. 1989. Inducing cytogenetic alterations by means of interspecific and iintergeneric hybridization in Brassica crops. Gamma Field Symposium 26:41-89.*
Nishi et al. 1980. Differentiation of Brassica crops in Asia and breeding of ‘Hakuran’, a newly synthesized leafy vegetable. pp133-150, In: Brassica Crops and Wild Allies (Editors Tsunoda, Hinata, and Gomes-Campo). Japan Sci. Soc. Press, Tokyo.*
Olsson et al 1960. Species crosses within the genus Brassica. II. ArtificialBrassica napus L. Hereditas46:351-396.*
Strauss et al. 1991. Development of B-genome chromosome addition lines ofB. napususing different interspecific hybrids. Plant Breeding 106:209-214.
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