Comparative transcriptome profiling of chilling stress responsiveness in two contrasting rice genotypes

ABSTRACT: Rice is sensitive to chilling stress, especially at the seedling stage. To elucidate the molecular genetic mechanisms of chilling tolerance in rice, comprehensive gene expressions of two rice genotypes (chilling-tolerant LTH and chilling-sensitive IR29) with contrasting responses to chilling stress were comparatively analyzed. Results revealed distinct global transcription reprogramming between the two rice genotypes under time-series chilling stress and subsequent recovery conditions. A set of genes with higher basal expression were identified in LTH, indicating their possible role in intrinsic tolerance to chilling stress. Under chilling stress, the major effect on gene expression was up-regulation in LTH and strong repression in IR29. Early responses to chilling stress in both genotypes

ORGANISM(S): Oryza sativa

SUBMITTER: ting zhang 

PROVIDER: E-GEOD-38023 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress