Genetics of resistance toPuccinia graminis tritici andPuccinia recondite tritici in four South African wheats |
| |
| Authors: | R P Singh R A McIntosh |
| |
| Institution: | (1) Plant Breeding Institute, The University of Sydney, P.O. Box 180, 2154 Castle Hill, NSW, Australia;(2) Present address: CIMMYT, Delegacion Cuauhtemoc, Apartado Postal 6-641, 06600 Mexico, D.F., Mexico |
| |
| Abstract: | Summary Genes for resistance toPuccinia graminis tritici andPuccinia recondita tritici identified in four South African wheats were:Sr6,Sr8a,Sr9e, andLr13 in  W3762 ;Sr5,Sr8a,Sr9b,Sr12,Sr24,Lr13, andLr24 in W3760;Sr2,Sr24,SrC,Lr13, andLr24 in W3751; andSr7a,Sr23,Sr36, andLr16 in W3755. GenesSr2,Sr9e, andSr24 also conferred adult plant resistance to the predominant pathotypes ofP. graminis tritici. GenesSr7a,Sr23, andSrC, when present alone, did not confer acceptable adult plant resistance, even though low seedling reactions were associated with them when tested with the same pathotypes. Genetic recombination betweenLr13 andSr9e was estimated at 12.5%±2.3%. |
| |
| Keywords: | Puccinia graminis tritici Puccinia recondita Tritici Triticum aestivum Rust resistance Gene identification |
| 本文献已被 SpringerLink 等数据库收录！ |
|
