Breeding method of winter wheat by molecular marker-assisted selection generation-adding technology

Abstract

The invention belongs to the field of crop breeding, and particularly relates to a breeding method of winter wheat by a molecular marker-assisted selection generation-adding technology. The invention provides an efficient winter wheat breeding technology combining a modern biotechnology and a north-south generation adding technology, the breeding accuracy is improved by screening target genes, determining breeding targets and adopting molecular marker-assisted selection, and the breeding process is accelerated by north-south generation adding.

Description

technical field

[0001] The invention belongs to the field of crop breeding, in particular to a breeding method of winter wheat molecular marker-assisted selection plus generation technology. Background technique

[0002] Wheat is one of the main food crops, and the production of wheat is the key to ensuring food security. The growth period of winter wheat planted in some areas is about 8 months, and it must go through low temperature vernalization before jointing and heading, flowering and fruiting. According to the conventional method, winter wheat can only be reproduced for one generation a year. If you want to cultivate a wheat variety, combined with the breeding cycle of winter wheat, it takes more than 10 years. There have been some technical explorations on how to shorten the breeding period, such as addition generation technology, wheat haploid technology and so on. But it is difficult to put into practical production application. SUMMARY OF THE INVENTION [0003...

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