Identification of stripe rust resistance in the seedling and detection of resistance genes in 217 einkorn wheats
Wheat stripe rust is one of the important diseases affecting wheat production.Exploring new disease-resistant genes and cultivating new disease-resistant varieties are green and effective measures.As the secondary genepool of common wheat(Triticum aestivum L.),einkorn wheat also contains rich disease-resistance resources.In order to discover new disease-resistant genes and promote the utilization of einkorn wheat,the resistance of 217 accessions to stripe rust were identified at the seedling stage and disease-resistant genes on A genome were detected using molecular markers.The results showed that 55 materials exhibited resistance to CYR32 at the seedling stage,accounting for 25.35％,and there were 26,22,16 and 34 materials carrying Yr1,Yr34/Yr48,Yr69 and Yr76,respectively.A total of four materials with immune or high resistance carried two resistance genes simultaneously:two materials carried Yr69 and Yr34,and two materials carried Yr1 and Yr34.The gene Yr17 was not detected in the test materials.In addition,23 materials were not detected for any of the five resistance genes,seven of which showed high resistance or immunity,and might carry other known or new stripe rust resistance genes.This study provides reference information for the utilization of einkorn wheat.
万方数据
维普
