Method for identifying gibberellic disease resistance of aegilops tauschii

Abstract

The invention relates to a method for identifying gibberellic disease resistance and particularly relates to the method for identifying gibberellic disease resistance of aegilops tauschii. The invention provides a method for high-throughput identification of the gibberellic disease resistance of aegilops tauschii by utilizing the aegilops tauschii in vitro fringe under controllable environmental condition within a short period of time. The method has the major advantage that the evaluation standard for the gibberellic disease resistance of aegilops tauschii is discovered and the gibberellic disease resistance of aegilops tauschii is evaluated according to the extension of the inoculated fringe. The standard is utilized to simply and quickly identify the gibberellic disease resistance of aegilops tauschii with 5-6 days. According to the method, the phenotype identification is direct and reliable, the repeatability is high, the resistance identification for a large batch of materials canbe completed within a short period of time and the method has significance in researching the gibberellic disease resistance of aegilops tauschii all over the world, finding a new gibberellic diseaseresistant resource and widening the gibberellic disease hereditary basis of the wheat.

Description

technical field [0001] The invention relates to a method for identifying resistance to scab disease, in particular to a method for identifying resistance to scab disease of A. tachyphylla. Background technique [0002] Goatgrass was the donor of the wheat D genome. wheat( Triticum aestivum L. ) as one of the world's three major food crops, its yield is second only to corn and rice. However, various biotic and abiotic stresses seriously threaten the yield and quality of wheat during the whole growth and development of wheat. Among them, the abiotic stress factors mainly include salinity, drought, freezing damage, and hot and dry wind, etc.; the biotic stress factors mainly include wheat three rusts (including stripe rust, leaf rust and stem rust), wheat scab and wheat powdery mildew, etc. These three major diseases are the three most serious fungal diseases that threaten the growth of wheat. Among them, fungal pathogens can not only affect the yield of wheat, but also sec...

AI Technical Summary

Problems solved by technology

[0004] Wheat head blight resistance may be controlled by multiple genes, the disease resistance mechanism is complex, its pathogenicity is easily affected by environmental conditions, heritability is low, resistance identification is difficult, and resistance resources are scarce. So far, no species immune to head blight has been found. quality resources, these have influenced the genetic and breeding work of wheat head blight resistance to a certain extent

Images