Comparative study of diversity based on heat tolerant-related morpho-physiological traits and molecular markers in tall fescue accessions.

ABSTRACT: Heat stress is a critical challenge to tall fescue (Festuca arundinacea Schreb.) in many areas of the globe and variations in genetic structure and functional traits is for the efficient breeding programs on developing heat tolerant cultivars. Tolerant-related morpho-physiological traits and simple sequence repeat (SSR) markers were employed to survey genetic diversity in greenhouse and growth chamber trials. 100 tall fescue accessions, including 8 commercial cultivars and 92 natural genotypes, showed a high variation in phenotypic performance under heat stress. Based on standardized heat tolerant-related morpho-physiological data, all tall fescue accessions were clustered into five groups. The accessions with similar heat tolerance were likely to be clustered in the same group. The highes

SUBMITTER: Sun X 

PROVIDER: S-EPMC4678371 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature