Physiological mechanisms contributing to the QTL qDTY_3.2 effects on improved performance of rice Moroberekan x Swarna BC₂F_3:4 lines under drought.

ABSTRACT:

Background

Traditional rice (Oryza sativa) varieties are valuable resources for the improvement of drought resistance. qDTY_3.2 is a drought-yield quantitative trait locus that was identified in a population derived from the traditional variety Moroberekan and the drought-susceptible variety Swarna. In this study, our aim was to characterize the physiological mechanisms associated with qDTY_3.2. Our approach was to phenotype fifteen BC₂F_3:4 lines for shoot and root drought resistance-related traits as compared to Swarna in the field under well-watered and drought stress conditions. Four BC₂F_3:4 lines contrasting for yield under drought were selected for detailed characterization of shoot morphology, water use related t

SUBMITTER: Grondin A 

PROVIDER: S-EPMC6068063 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature