Better Genetic Markers Developed for Wheat Streak Mosaic Virus Resistance
May 7, 2014| |
Genetic diagnostic markers are being developed by the Texas A&M AgriLife Research to identify wheat streak mosaic virus resistance. The study, which includes AgriLife Research and Kansas State University scientists will provide wheat breeders a new tool to breed wheat varieties resistant to the region's most prevalent disease.
Several resistance genes to wheat streak mosaic are available, but only one gene, Wsm2, is from wheat, the others are from related species. The research team bred Wsm2 into two wheat cultivars, RonL and Snowmass. Silvano Ocheya, a member of the research team, is using wheat population derived from CO960293-2 and TAM 111 to map the drought tolerance genes in TAM 111 and identify tightly-linked single nucleotide polymorphic (SNP) markers for drought tolerance genes and Wsm2. Ocheya mapped about 5,000 SNP onto the whole wheat genome, and several tightly linked SNP markers to the Wsm2 gene were found.
For more details about this research, read the news release available at
http://today.agrilife.org/2014/04/28/better-genetic-markers-developed-for-wheat-streak-mosaic-virus-resistance/.
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