Genomic Regions Associated with Tolerance to Freezing Stress and Snow Mold in Winter Wheat.

ABSTRACT: Plants grown through the winter are subject to selective pressures that vary with each year's unique conditions, necessitating tolerance of numerous abiotic and biotic stress factors. The objective of this study was to identify molecular markers in winter wheat (Triticum aestivum L.) associated with tolerance of two of these stresses, freezing temperatures and snow mold-a fungal disease complex active under snow cover. A population of 155 F_2:5 recombinant inbred lines from a cross between soft white wheat cultivars "Finch" and "Eltan" was evaluated for snow mold tolerance in the field, and for freezing tolerance under controlled conditions. A total of 663 molecular markers was used to construct a genetic linkage map and identify marker-trait associations. One quantitative

SUBMITTER: Kruse EB 

PROVIDER: S-EPMC5345707 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature