Haplotyping, linkage mapping and expression analysis of barley genes regulated by terminal drought stress influencing seed quality.

摘要: The increasingly narrow genetic background characteristic of modern crop germplasm presents a challenge for the breeding cultivars that require adaptation to anticipated change in climate. Thus, high priority research aims at identification relevant allelic variation present both itself as well its progenitors. This study is based on characterization barley, with view enhancing response terminal drought stress. expression patterns regulated genes were monitored during plant ontogeny, mapped and location these was incorporated into comprehensive barley SNP linkage map. Haplotypes within set 17 starch biosynthesis/degradation defined, particularly level haplotype uncovered encoding sucrose synthase (types I II) synthase. ability panel 50 accessions maintain grain content under conditions explored. linkage/expression map an informative resource context characterizing among progenitors cultivated shows domestication have greatly eroded their diversity current elite cultivars. Prospective association analysis core drought-regulated may simplify process identifying favourable alleles, help understand basis drought.