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Breeding Method for Creating Multiple Translocation Lines of Wheat

A translocation system and multiple technology, applied in botany equipment and methods, plant genetic improvement, plant products, etc., can solve problems such as breeding and improvement of difficult wheat

Active Publication Date: 2022-01-07
CROP INST SICHUAN PROVINCE ACAD OF AGRI SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the deficiency that the existing multi-translocation line materials created or cultivated are difficult to be used for wheat breeding and improvement, the present invention provides a breeding method for creating multiple translocation lines of wheat, through 5BS.7BS and 5BL.7BL Double Translocation Chromosomes in Wheat Variety Chuanmai 62 as Carriers for Multiple Translocation Line Breeding

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  • Breeding Method for Creating Multiple Translocation Lines of Wheat

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Embodiment Construction

[0013] The present invention is described in further detail now in conjunction with accompanying drawing.

[0014] figure 1 It is a breeding flowchart of the present invention.

[0015] A breeding method for creating multiple translocation lines of wheat, the breeding steps are:

[0016] a) Chuanmai 62 was crossed with the translocation variety to obtain the hybrid F 1 ;

[0017] b) Hybrid F 1 Backcross with Chuanmai 62 to get hybrid BC 1 f 1 ;

[0018] c) Hybrid BC 1 f 1 Self-breeding to obtain multiple translocation lines;

[0019] The 5BS·7BS and 5BL·7BL translocation chromosomes of Chuanmai 62 were used as carriers for multiple chromosome aggregation, and new translocation chromosomes were induced during the multiple chromosome aggregation process.

[0020] The wheat variety Chuanmai 62 was bred by the Crop Research Institute of the Sichuan Academy of Agricultural Sciences and is highly resistant to stripe rust. Cytological identification showed that Chuanmai 62...

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Abstract

The invention relates to the technical field of wheat breeding, in particular to a breeding method for creating multiple translocation lines in wheat. The breeding method includes a breeding method for creating multiple translocation lines in wheat. The breeding steps are: a) Chuanmai 62 and translocation line varieties cross to get hybrid F 1 ; b) Hybrid F 1 Backcross with Chuanmai 62 to obtain hybrid BC 1 F 1 ;c) Hybrid BC 1 F 1 The multiple translocation lines were obtained by self-breeding and breeding; the 5BS·7BS and 5BL·7BL translocation chromosomes of Chuanmai 62 were used as vectors for multiple chromosome aggregation, and new translocation chromosomes were induced in the process of multiple chromosome aggregation. The invention provides a breeding method for creating a wheat multiple translocation line, which uses the 5BS.7BS and 5BL.7BL double translocation chromosomes in the wheat variety Chuanmai 62 as a carrier to select the multiple translocation line.

Description

technical field [0001] The invention relates to the technical field of wheat breeding, in particular to a breeding method for creating multiple translocation lines of wheat. Background technique [0002] Wheat is one of the most important food crops in the world, and the safety of wheat production is of great significance to economic development and social stability. Cultivating breakthrough new varieties is an important goal of wheat breeding, among which the creation of new wheat germplasm and the cultivation of new varieties (lines) play a decisive role. A large number of studies have shown that [1-5], double or multiple translocation lines have good disease resistance or excellent agronomic traits, and can be used for wheat breeding improvement. Such as: Wheat-rye-Tucillis homozygous double translocation line (1RS·1BL, 6VS·6AL) and wheat-rye-Tustritus homozygous triple translocation line (1RS·7DS, 1BL·7DL, 6VS ·6AL) has good agronomic traits and resistance to powdery m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
CPCA01H1/02A01H5/10
Inventor 杨恩年杨漫宇
Owner CROP INST SICHUAN PROVINCE ACAD OF AGRI SCI