Potential of Oryza officinalis to augment the cold tolerance genetic mechanisms of Oryza sativa by network complementation.

ABSTRACT: Oryza officinalis is an accessible alien donor for genetic improvement of rice. Comparison across a representative panel of Oryza species showed that the wild O. officinalis and cultivated O. sativa ssp. japonica have similar cold tolerance potentials. The possibility that either distinct or similar genetic mechanisms are involved in the low temperature responses of each species was addressed by comparing their transcriptional networks. General similarities were supported by shared transcriptomic signatures indicative of equivalent metabolic, hormonal, and defense status. However, O. officinalis has maintained an elaborate cold-responsive brassinosteroid-regulated BES1-network that appeared to have been fragmented in O. sativa. BES1-network is potentially important for integrating growth-r

SUBMITTER: Kitazumi A 

PROVIDER: S-EPMC6218501 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature