Carbon isotope composition, water use efficiency, and drought sensitivity are controlled by a common genomic segment in maize.

ABSTRACT:

Key message

A genomic segment on maize chromosome 7 influences carbon isotope composition, water use efficiency, and leaf growth sensitivity to drought, possibly by affecting stomatal properties. Climate change is expected to decrease water availability in many agricultural production areas around the globe. Therefore, plants with improved ability to grow under water deficit are urgently needed. We combined genetic, phenomic, and physiological approaches to understand the relationship between growth, stomatal conductance, water use efficiency, and carbon isotope composition in maize (Zea mays L.). Using near-isogenic lines derived from a maize introgression library, we analysed the effects of a genomic region previously identified as affecting carbon isotope composition. We show st

SUBMITTER: Avramova V 

PROVIDER: S-EPMC6320357 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature