[ Objective] This study aimed to map quantitative tarit loci （QTLs） associated with salt tolerance of maize inbred line at seedling stage. [ Method! The recombinant inbred line （RIL） F7 including 171 plants were d...[ Objective] This study aimed to map quantitative tarit loci （QTLs） associated with salt tolerance of maize inbred line at seedling stage. [ Method! The recombinant inbred line （RIL） F7 including 171 plants were developed by single seed descent procedure from a combination, Huangzazsi × Mo17, and used to map QTLs associated with salt tolerance, based on the constructed genetic map of SSR markers. [ Resultl A linkage map consisting of 81 SSR markers loci from 10 chromosomes （ 1 428.3 cM in total length, with an average distance of 17.63 cM between two neighbouring loci） was constructed. Six QTI~ associated significantly with salt tolerance were detected at chromosomes 1,5 and 6. [ Conclusion] This study is extremely significant for better understanding sah tolerance-related genes, the genes＇ location and cloning, salt tolerance mechanism and the marker-assisted selection of salt tolerant maize.展开更多
基金Supported by Project of Key Opening Laboratory of Physiology and Ecology of Crop in Cold Terra of Agriculture MinistryProject of the Department of Education of Heilongjiang Province (11521196)
文摘[ Objective] This study aimed to map quantitative tarit loci （QTLs） associated with salt tolerance of maize inbred line at seedling stage. [ Method! The recombinant inbred line （RIL） F7 including 171 plants were developed by single seed descent procedure from a combination, Huangzazsi × Mo17, and used to map QTLs associated with salt tolerance, based on the constructed genetic map of SSR markers. [ Resultl A linkage map consisting of 81 SSR markers loci from 10 chromosomes （ 1 428.3 cM in total length, with an average distance of 17.63 cM between two neighbouring loci） was constructed. Six QTI~ associated significantly with salt tolerance were detected at chromosomes 1,5 and 6. [ Conclusion] This study is extremely significant for better understanding sah tolerance-related genes, the genes＇ location and cloning, salt tolerance mechanism and the marker-assisted selection of salt tolerant maize.
