Method for selectively breeding specific cockscomb by chromosome chimerism principle

A technology of cockscomb and chromosome, which is applied in the direction of botany equipment and methods, application, plant gene improvement, etc., can solve the problems of difficult seed reproduction, unfavorable breeding of new varieties, chimera can not maintain the characteristics of chimera, etc., to meet the needs of ornamental Requirements, the effect of enriching the flower market

Inactive Publication Date: 2003-02-12
HUBEI UNIV
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Problems solved by technology

[0005] One is that the occurrence of chimeras in nature is quite rare; the other is that the natural chimeras reproduce slowly under normal conditions; the third is that most chimeras cannot maintain chimera characteristics under the condition of seed reproduction; The genetic characteristics of varieties that maintain chimera chara

Method used

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Examples

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Embodiment Construction

[0031] The following examples further illustrate the present invention.

[0032] 1. Use spontaneous mutation to produce chimeric plants as mother plants.

[0033] In the summer of 1983, the inventor found a special cockscomb flower on the roadside of the campus of Huazhong Agricultural University. It has red and yellow flowers at the same time, and has red stripes on the yellow stems, with all green, all red and red. The green mosaic leaves are a typical plant mosaic. Therefore, in addition to characterization, the seeds were harvested separately. After the seeds were sowed in the spring of 1984, more than 30 chimera cockscombs were obtained, and the plants were separated and harvested separately.

[0034] 2. Apply γ-ray processing to expand the range of variation.

[0035] 300 chimera cockscomb seeds harvested in 1984 were processed by Co 60 After γ-ray (20-40krad) treatment, seedlings were aseptically germinated in 1 / 2MS medium and cultivated with strong seedlings (1 / 2MS+6BA 0.2...

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Abstract

A method for selectively culturing the specific cockscomb by chromosome chimera principle includes such steps as using automutation to generate chimeric plant as mother plant; treating the seeds of the said mother plant by gamma ray; selectively culturing the stable chimera of specific cockscomb; free crossing and collecting seeds at particular position; and targeted hybridization. The resultant varieties of cockscomb features different colours on its same inflore scence, flower, stem and leaf.

Description

Technical field [0001] The invention relates to a method for breeding special flowers, in particular to a method for breeding specific celosia by using the principle of chromosome mosaicism. Background technique [0002] The magical nature has created everything in the world, including tall trees, beautiful flowers and other colorful plants. Generally speaking, every plant has a certain number of stable chromosomes, they only grow the same leaves and bloom the same color flowers. However, sometimes you can also see some special plants with leaf color inlays and multi-color flowers, such as Phnom Penh Ruixiang, colorful petunia and mosaic dahlia. They are plant chimeras, which consist of cells with different genetic material to form a plant body and exhibit two or more relative traits at the same time. [0003] There are four main reasons for chimera formation. One is virus infection, the other is chromosomal mosaicism, the third is the effect of gene mutation...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/06
Inventor 蔡得田陈冬玲
Owner HUBEI UNIV
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