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Method for breeding rice with recessive two-color glume markers

A glume and rice technology, applied in the field of rice breeding with recessive two-color glume markers, can solve problems such as insufficient variety of glume marker colors, influence on rice glume photosynthesis, and decrease in glume chlorophyll content, and achieve broad Discover channels, ensure exclusivity, and improve the effect of genetic strength

Active Publication Date: 2016-02-17
文山壮族苗族自治州农业科学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these special chaff colors are excavated from the existing brown chaff rice resources, the available resources are limited, and the excavation method is single. The types are not rich enough, and the whole glume is marked with color, which reduces the chlorophyll content of the glume and affects the photosynthesis of the rice glume. The specific color marking type of chaff is of great significance to prevent product infringement, promote the mechanization of hybrid rice seed production, and enhance the core competitiveness of products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 Screening of glume color-specific recessive gene donor varieties

[0035] In this embodiment, the excellent maintainer lines Haoxiang 24B, Wenxiang 28B and the restorer lines Wenhui 206, Wenhui 247, Yihui 1577, etc. of fragrant soft rice are used as male parents (as the rice variety II of the present invention). Ha, Red Shell Red Glutinous Rice, Purple Valley, Hao Nuo Dian, Hao Leng, La Shuo, Hao Kang, Hao Mu Liang, Hao Zhao, Yuanyang Red Rice, Myanmar Yellow Bansuo, Hao Pi, Da Zi Gan, Huang Ke Xiang , Thailand Jasmine, Kaogang, Gehe, Shandongba, Qieba, Haodada, Haomuyun, Haomulu, Haomuxi, Lijiang Xintuan Black Valley, Lijiang Pantian Black Valley, Ninglang Laoya Valley , India Dular, etc. as the female parent (as the darker rice resource variety 1 of the glume color of the present invention), in July, 2004, in the network room of Wenshan City, Yunnan Province, the hybridization group was obtained, and 140 hybrid F 1 Combine seeds.

[0036] In November of th...

Embodiment 2

[0037] Embodiment 2 has the breeding of two-color glume marker strain

[0038] In this example, Myanmar Huangbansuo is used as the donor variety III of the glume color-specific recessive gene of the present invention, and a restorer line with a black-brown genetic background of Yunnan glumes that is highly resistant to rice blast, excellent in plant type, and strong in combining ability is suitable. Hui 1577, as a rice resource variety IV with a black-brown glume genetic background in Yunnan, was selected to breed a line VI with two-color glume, specifically:

[0039] In April 2005, at the experimental base of Wenshan Prefecture Academy of Agricultural Sciences in Sanya, hybridization was carried out with Huangbansuo as the female parent and Yihui 1577 as the male parent. The experimental base of the State Academy of Agricultural Sciences adopts the pedigree method and the method of increasing the selection pressure to isolate and select by generation, and purify the two-color...

Embodiment 3

[0041] Embodiment 3 has the breeding of the line VII of bicolor glume

[0042] In the present embodiment, 14 strains with ochre-yellow-rod-yellow glume traits screened out in Example 2 are used as the strain VI with two-color glumes of the present invention, and the strain VII with two-color glumes is selected, specifically:

[0043] In May 2008, 14 strains with ochre-yellow-stem-yellow glume traits screened from the Sanya test base were tested in Wenshan, Luoping, Jinghong, Longyang, Binchuan, Guizhou, and Guiyang, Sichuan, respectively. Multi-point identification tests were carried out in 8 different ecological regions including Jiangyou and Guanghan. In the experiment, the hybrid male parent Yihui 1577 and Yunnan fragrant soft rice conventional rice variety Diantun 502 were used as controls. Each plot was 0.02 mu, and 360 clumps were planted in each plot. Single planting, no repetition. When mature, the seeds are tested according to uniformity, rice blast resistance, plant...

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Abstract

The invention discloses a method for breeding rice with recessive two-color glume markers. The method includes the following steps that 1, a glume color specific recessive gene donor variety is selected from deep-glume-color rice varieties; 2, after the glume color specific recessive gene donor variety and a rice variety with a Yunnan glume black brown genetic background are hybridized, multi-generation selfing is performed, and a strain with two-color glumes is obtained through breeding; 3, the strain with the two-color glumes is subjected to a multi-point test and a stability test, and a strain which is stable in character, high in resistance and high in adaptability and is provided with the two-color glumes is selected; 4, the strain VII with the two-color glumes and a variety with the normal glume color are hybridized, and the rice with the recessive two-color glume markers is obtained through identification and breeding. According to the method for breeding the rice with the recessive two-color glume markers, a rice recessive special color glume marker gene excavation channel can be expanded.

Description

technical field [0001] The invention relates to rice breeding technology, in particular to a method for breeding rice with recessive double-color glume markers. Background technique [0002] Rice is the main crop in the world, and it is also the most important food crop in my country. More than half of the world's population uses rice as a staple food, and it is as high as 60% in China. Therefore, the status of rice technology innovation has attracted great attention from the world. Rice hull color is an important marker trait of rice, which can stabilize genetic traits, is less affected by the environment, and can be visually identified after heading. In the process of rice seed production and commercial development, especially in the commercial seed production and In the process of mechanized seed production, it has very special significance. Excavating exclusive and proprietary seeds with intuitive and special marks with independent intellectual property rights will help...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
Inventor 李存龙罗龙董卓娅韦永贵张晓磊张国杨芬陶永宏
Owner 文山壮族苗族自治州农业科学院
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