SNP molecular marker 1995 related to fusarium head blight resistance and application

Abstract

The invention provides an SNP molecular marker related to fusarium head blight resistance and application. The SNP molecular marker Kukri_c14239_1995 is located on a 1B chromosome of wheat; the nucleotide sequence of the molecular marker is shown as SEQ ID NO.1 or SEQ ID NO.2; furthermore, the 51st base is T or C; and the wheat with the 51st base being C has fusarium head blight resistance. The SNP locus provided by the invention has important significance in detecting the resistance of fusarium head blight varieties, strains and breeding materials, and can be used for developing molecular markers according to the SNP locus, so that the wheat breeding efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of wheat breeding, and specifically relates to the SPN molecular marker 1995 related to wheat scab resistance and its application. Background technique [0002] Wheat (Triticum aestivum L.), as one of the three major food crops, is an important food and feed source. However, wheat has a long growth period and is vulnerable to biotic (disease, insect pest, etc.) and abiotic (drought, freezing damage, etc.) stresses. Wheat headblight (Fusarium headblight, FHB) is a wheat ear disease caused by the fungus Fusarium, which not only causes severe wheat yield reduction, but also deoxyfusarium enol (DON) and other toxins produced by Fusarium infection contaminate wheat grain. Since no completely immune variety has been found so far, it has become the most devastating wheat disease in the world, seriously threatening food production and food safety. Breeding disease-resistant varieties and discovering disease-resis...

AI Technical Summary

Problems solved by technology

However, wheat has a long growth period and is vulnerable to biotic (disease, insect pest, etc.) and abiotic (drought, freezing damage, etc.) stresses.

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