Genome-Wide Association Study of Agronomic and Physiological Traits Related to Drought Tolerance in Potato.

ABSTRACT: Potato (Solanum tuberosum L.) is often considered a water-sensitive crop and its production can be threatened by drought events, making water stress tolerance a trait of increasing interest. In this study, a panel of 144 tetraploid potato genotypes was evaluated for two consecutive years (2019 and 2020) to observe the variation of several physiological traits such as chlorophyll content and fluorescence, stomatal conductance, NDVI, and leaf area and circumference. In addition, agronomic parameters such as yield, tuber fresh weight, tuber number, starch content, dry matter and reducing sugars were determined. GGP V3 Potato array was used to genotype the population, obtaining a total of 18,259 high-quality SNP markers. Marker-trait association was performed using GWASpoly package in R

SUBMITTER: Alvarez-Morezuelas A 

PROVIDER: S-EPMC9963855 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature