Evaluating the Utility of Carbon Isotope Discrimination for Wheat Breeding in the Pacific Northwest.

ABSTRACT: Many wheat (Triticum aestivum L.) production regions are threatened annually by drought stress. Carbon isotope discrimination (Δ) has been identified as a potentially useful trait in breeding for improved drought tolerance in certain environments. Broad use of Δ as a selection criterion is limited, however, mainly due to an inconsistent relationship observed between grain yield and Δ and, to a lesser extent, because of the high resource demand associated with phenotyping. The efficiency of selection may be improved by the identification and verification of molecular markers for use in marker-assisted selection (MAS), and a reliable relationship to grain yield may be established based on a location's total amount and distribution of precipitation over the growing

SUBMITTER: Dixon LS 

PROVIDER: S-EPMC7706333 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature