Genetic differentiation revealed by selective loci of drought-responding EST-SSRs between upland and lowland rice in China.

ABSTRACT: Upland and lowland rice (Oryza sativa L.) represent two of the most important rice ecotypes adapted to ago-ecosystems with contrasting soil-water conditions. Upland rice, domesticated in the water-limited environment, contains valuable drought-resistant characters that can be used in water-saving breeding. Knowledge about the divergence between upland and lowland rice will provide valuable cues for the evolution of drought-resistance in rice. Genetic differentiation between upland and lowland rice was explored by 47 Simple Sequence Repeats (SSRs) located in drought responding expressed sequence tags (ESTs) among 377 rice landraces. The morphological traits of drought-resistance were evaluated in the field experiments. Different outlier loci were detected in the japonica and indica subspeci

SUBMITTER: Xia H 

PROVIDER: S-EPMC4186790 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature