Profile analysis on exogenous genes introduced into wheat

A technology of exogenous genes and wheat, applied in the direction of plant genetic improvement, introduction of foreign genetic material using vectors, angiosperms/flowering plants, etc., can solve the problems of restricting the progress of wheat, narrow genetic basis of wheat varieties, and reduced genetic diversity

Inactive Publication Date: 2010-06-30
李祥
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Problems solved by technology

At present, due to the long-term directional selection of humans and the promotion of intensive variety breeding, the genetic basis of the bred wheat varieties has become narrower and narrower, and the genetic diversity has gradually decreased (Dreisigacker, Crop Science, 2005, 45(2): 65

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  • Profile analysis on exogenous genes introduced into wheat

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Embodiment Construction

[0015] The transfer of exogenous genes to wheat can be achieved through somatic cell hybridization and genetic engineering. However, due to the obvious problems of technical operation, separation of target genes, and unstable expression of progeny traits in these methods, it is still difficult to obtain them in wheat breeding. effective use. Wild relatives of wheat have many excellent traits that can be used for genetic improvement of wheat, and the methods of distant hybridization and chromosome engineering have always been the main ways to introduce foreign genes into wheat. Obtaining the F of wheat and exotic species 1 Hybridization is an important link in the transfer of exogenous target genes to wheat through sexual hybridization. With the discovery and utilization of hybridizable genes (kr1, kr2, kr3, kr4) (Falk, Can J Genet Cytol, 1981, 23: 81-88; Luo, Logan, Utah, 1994: 83-85), the hybridization method Improvement and application of embryo rescue technology (Sharma, ...

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Abstract

The invention discloses a profile analysis on exogenous genes introduced into wheat, which introduces excellent genes or characters of wheat from kindred plants through analyzing the approaches of introducing exogenous genes into wheat, sufficiently uses the advantages of abundant germplasm resources of wheat, finds out the intraspecific hereditary variation of wheat, and enhances the research development and utilization of the gene resources of wide kindred plants. The invention is an important field for researching the germplasm resources of wheat.

Description

technical field [0001] The general situation analysis of exogenous gene introduction into wheat in the present invention mainly analyzes the way of exogenous gene introduction into wheat, the excellent genes or traits of wheat from close relative plants, fully utilizes the advantages of rich germplasm resources of wheat, and taps the genetic variation of wheat species Strengthening the research, development and utilization of genetic resources of wild relatives is an important field of research on wheat germplasm resources. Background technique [0002] Wheat is one of the most important food crops in the world, with a vast planting area and high total output. At present, due to the long-term directional selection of humans and the promotion of intensive variety breeding, the genetic basis of the bred wheat varieties has become narrower and narrower, and the genetic diversity has gradually decreased (Dreisigacker, Crop Science, 2005, 45(2): 653-661 ; Christiansen, Molecular...

Claims

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Application Information

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IPC IPC(8): C12N15/82A01H1/02A01H5/00
Inventor 李祥
Owner 李祥
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