Genome-wide Association Study of a Panel of Vietnamese Rice Landraces Reveals New QTLs for Tolerance to Water Deficit During the Vegetative Phase.

ABSTRACT:

Background

Drought tolerance is a major challenge in breeding rice for unfavorable environments. In this study, we used a panel of 180 Vietnamese rice landraces genotyped with 21,623 single-nucleotide polymorphism markers to perform a genome-wide association study (GWAS) for different drought response and recovery traits during the vegetative stage. These landraces originate from different geographical locations and are adapted to different agrosystems characterized by contrasted water regimes. Vietnamese landraces are often underrepresented in international panels used for GWAS, but they can contain original genetic determinants related to drought resistance.

Results

The panel of 180 rice varieties was phenotyped under greenhouse conditions for several drought-related trait

SUBMITTER: Hoang GT 

PROVIDER: S-EPMC6357217 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature