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Breeding method and molecular marker of wheat-elytrigia elongata powdery-mildew-resisting translocation line

A technology of wheatgrass with long ears and resistance to powdery mildew is applied in the field of breeding, which can solve the problems of single disease-resistant varieties and few powdery mildew-resistant genes, and achieve the effect of realizing diversification and realizing source resistance.

Inactive Publication Date: 2016-02-17
HENAN INST OF SCI & TECH
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Problems solved by technology

[0006] Aiming at the problems of relatively few effective powdery mildew resistance genes and single disease-resistant varieties in current wheat breeding, the present invention specifically provides a method for breeding a translocation line resistant to powdery mildew of wheat-decaploid Echinopsis elongatum and the bred T5ES Molecular markers of -5DL translocation line Yan 11-20

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  • Breeding method and molecular marker of wheat-elytrigia elongata powdery-mildew-resisting translocation line
  • Breeding method and molecular marker of wheat-elytrigia elongata powdery-mildew-resisting translocation line
  • Breeding method and molecular marker of wheat-elytrigia elongata powdery-mildew-resisting translocation line

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Embodiment 1

[0040] Example 1 Breeding of Wheat-Decaploid Echinopsis elongatum T5ES-5DL Translocation Line Yan11-20

[0041] (1) F obtained by crossing the common wheat variety Keyu 818 with the Australian decaploid Echinopsis elongatum and the common wheat variety Lankaaoaizaoba 1 Hybridization of plants to obtain hybrid seeds;

[0042] (2) At the beginning of September, the hybrid seeds were treated with 2% H by volume percentage concentration. 2 o 2 After soaking for 24 hours, rinse it with running water and plant it on a seedling tray, and put it in an artificial intelligence greenhouse for identification of powdery mildew resistance at the seedling stage. Transplant to field;

[0043] The identification of powdery mildew resistance at the seedling stage in the artificial intelligence greenhouse is to plant the susceptible control Chinese spring and hybrid seeds in a greenhouse with sufficient natural bacteria sources, and the indoor temperature is controlled at about 18 ° C. After ...

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Abstract

The invention provides a breeding method of a wheat-decaploid elytrigia elongata powdery-mildew-resisting translocation line, and further provides a T5ES-5DL translocation line yan 11-20 bred with the breeding method of the wheat-decaploid elytrigia elongata powdery-mildew-resisting translocation line and a molecular identification method of offsprings of the translocation line. The wheat-decaploid elytrigia elongate T5ES-5DL translocation line yan 11-20 bred with the breeding method is immune to current Huang-Huai wheat area erysiphe graminis, the diversity of resistant sources is achieved, the botany characteristics of the translocation line are excellent, and higher use value is achieved in wheat breeding.

Description

technical field [0001] The invention relates to breeding technology, in particular to a method for breeding a wheat-decaploid Echinopsis elongatum resistant to powdery mildew translocation line and a molecular marker of the bred T5ES-5DL translocation line Yan 11-20. Background technique [0002] Wheat powdery mildew (Powderymildew) is a major disease that harms wheat production. It is a worldwide fungal disease caused by wheat powdery mildew (Blumeria graminis f.sp.tritici, Bgt). In my country, before the 1970s, wheat powdery mildew was mainly prevalent in the humid and rainy southwest region and the coastal areas of Shandong. Due to the variation of physiological races, the occurrence area of ​​this disease has been continuously expanding, and it has developed into a recurrent disease with the largest incidence area in China's wheat production, and the wheat yield in severely diseased plots has decreased by 20% to 30%. According to statistics, from 2004 to 2009, the averag...

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Application Information

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IPC IPC(8): C12Q1/68C12N15/11A01H1/02
CPCA01H1/02C12Q1/6895C12Q2600/13C12Q2600/156
Inventor 李小军茹振钢胡铁柱陈向东丁位华吴晓军李淦
Owner HENAN INST OF SCI & TECH
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