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Method for creating millet male sterile line containing different cytoplasm

A male sterile line and cytoplasmic technology, applied in the field of breeding, can solve the problems of complex operation and long breeding cycle, and achieve the effect of wide range of materials, easy promotion and application, and broadening of cytoplasmic types

Inactive Publication Date: 2021-12-07
ZHANGJIAKOU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Liu Zhengli et al established bridge parents containing sterility genes and imazethapyr resistance genes, and then artificially pollinated millet materials with target cytoplasm through the bridge parents, bagged continuously for 4-6 generations, and carried out artificial directional screening to create different cytoplasm types The imazethapyr herbicide-resistant millet male sterile line material, but the operation is more complicated and the breeding cycle is long

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Test material:

[0021] The hybrid selected in this experiment is "Zhang Zagu No. 10", which comes from the male sterile line A2 of millet, and is resistant to Nabujing. It is a high-yielding and high-quality millet hybrid bred by the Zhangjiakou Academy of Agricultural Sciences in Hebei Province. Stick type, moderate elasticity, yellow grain yellow rice, growth period of 132 days, good overall performance, strong adaptability, good yield stability, disease and lodging resistance, good acquaintance. On December 25, 2009, it was rated as a first-class high-quality rice at the National Millet Appraisal Conference, and it had the best beige color among the 29 participating samples. The female parent material is Dabaigu, the most high-quality conventional millet variety in China. It is mainly planted in the spring sowing area of ​​millet in Zhangjiakou City. The growth period is about 135 days. It is famous at home and abroad for its high-quality rice.

[0022] 2. Breed...

Embodiment 2

[0029] The CMS selected in this embodiment is the A2 long and thick CMS, which is the big-ear CMS "A2 long and thick CMS" selected on the basis of the CMS A2 in Example 1 . The experiment was carried out at the same time as the previous example, and the method was the same, and 113 high-generation CMS materials were finally obtained.

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PUM

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Abstract

The invention discloses a method for creating a millet male sterile line containing different cytoplasm, and belongs to the technical field of breeding. According to the method, a sethoxydim-resistant millet hybrid prepared from a millet male sterile line A2 or a derivative sterile line material thereof which is widely popularized at present is used, pollen of the sethoxydim-resistant millet hybrid is pollinated to a conventional millet material which is subjected to artificial emasculation, has target cytoplasm and is not resistant to sethoxydim, sethoxydim-resistant and recessive male sterility characteristics of millet are fully utilized, after 4-6 generations, the sterile line material which contains target cytoplasm and herbicides resistant or not resistant to sethoxydim can be obtained, and the sterile line material can be rapidly applied to production practice. The method is simple and easy to operate, short in period and capable of being rapidly applied and popularized, and has extremely important significance on millet breeding.

Description

technical field [0001] The invention belongs to the technical field of breeding, in particular to a method for creating male sterile lines of millet containing different cytoplasms. Background technique [0002] Millet, known as millet after shelling, is one of the traditional crops in my country and is widely planted in the arid and semi-arid regions of northern China. Millet has the characteristics of drought resistance, barren resistance, and strong adaptability, and is suitable for planting in various soils. Grains have high nutritional value and are rich in protein, fat, vitamins and trace elements, and are deeply loved by consumers. In addition, the crude protein content in aspartate grass is 3.16%, which contains 0.7%-1.0% digestible protein, and its feeding value is close to that of leguminous forage, so it can be used as an excellent forage grass for livestock. [0003] At present, the millet hybrid with the largest promotion and application area in the domestic a...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01G7/06
CPCA01H1/02A01G7/06
Inventor 王晓明王德权冯小磊范光宇王千史高雷魏玮赵治海王峰宋国亮张文英张晓磊赵芳李欣儒张雅莉裴晶晶
Owner ZHANGJIAKOU ACAD OF AGRI SCI