First steps to understand heat tolerance of temperate maize at adult stage: identification of QTL across multiple environments with connected segregating populations.

ABSTRACT:

Key message

Dents were more heat tolerant than Flints. QTL for heat tolerance with respect to grain yield at field conditions were identified considering multiple populations and environments. High temperatures have the potential to cause severe damages to maize production. This study aims to elucidate the genetic mechanisms of heat tolerance under field conditions in maize and the genome regions contributing to natural variation. In our study, heat tolerance was assessed on a multi-environment level under non-controlled field conditions for a set of connected intra- and interpool Dent and Flint populations. Our findings indicate that Dent are more heat tolerant during adult stage than Flint genotypes. We identified 11 quantitative trait loci (QTL) including 2 loci for heat toleran

SUBMITTER: Frey FP 

PROVIDER: S-EPMC4835532 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature