Genetic variation of accessions within Fusarium head blight resistance wheat cultivars revealed by SSR markers.

摘要

In this study, we revealed genetic variation within the accessions of Frontana (Brazil, USA, Canada and Japan) and Sumai 3 (China, USA, Canada, Iran, Austria and Japan) send to CIMMYT by using 242 SSR markers spreading whole wheat genome. Frontana-USAand -CAN were identical with or variant of original Brazilian accession. In case of Sumai 3, US, Canadian and Iranian accessions were same genotype of Chinese one. Sumai 3-JIR might be a derivative from them. Austrian accession was considered as a derivative from an original Chinese accession following outcross and selection with additive resistance genes to FHB. The results of genetic variation within the accessions of Frontana and Sumai 3 inform that we need to pay attention to recognize the genotypeof those accessions to discuss the results of QTL analysis and to use them in breeding programs with marker assisted selection.