QTLs Mapping for Salinity Tolerance at Seedling Stage or Rice (Oryza sativa L.) Using Chromosome Segment Substitution Lines
In this study, a population of chromosome segment substitution lines (CSSLs) derived from the cross between 9311 (indica) and Nipponbare (japonica) was employed to map the quantitative trait loci (QTLs) for salt tolerance under the salt stress simulated with 0.5％ NaCl, using survival rate as the index. The data were analyzed by QTL IciMapping v3.1, and the results showed that one QTL (QSst 3) related to salt tolerance was located in the vicinity of the marker RM1350 on chromosome 3, into a genetic interval of 113.2 -132.8 cM, with a contribution rate of 17.75％. The additive effect was 10.9, indicating that the QTL derived from the parent Nipponbare improved the salt tolerance of rice at seedling stage. This study will provide a theoretical basis for the selection of salt tolerant rice germplasm.
RiceSalt toleranceChromosome segment substitution lines (CSSLs)Quantitative trait loci (QTLs) mapping
NETL
NSTL
万方数据
维普
