Testing for the genetic basis of cold tolerance in a wild mustard
Abstract
Overwinter survival and cold tolerance are complex quantitative traits that are important in understanding adaptation to different environments. I evaluated 422 genotypes of Boechera stricta, originating form different geographic locations and elevations, in a common garden genome wide association study (GWAS) experiment in the Rocky Mountains. I measured overwinter survival in 3895 GWAS plants that have been fully sequenced as a part of the original experiment. Using sequenced genetic information from the plants, I looked for correlations between survival and genetic variation in a quantitative trait locus previously implicated in cold tolerance adaptation in this species. I found variation in overwinter survival across broad population groups reflecting different genetic and evolutionary histories, as well as in relation to one aspect of genetic variation within the quantitative trait locus specifically. The population groups Utah and West had higher survival rates than those from Colorado in the Colorado common garden experiment. In a test for local adaptation, population group was a significant predictor of overwinter survival, while elevation, latitude and longitude were not. This indicates that the cold tolerance trait is likely not locally adapted.
Local Knowledge Graph (8 entities)
Related Works
Items connected by shared entities, co-authorship, citations, or semantic similarity.
Data from: Microgeographic patterns of genetic divergence and adaptation across environmental gradients in Boechera stricta (Brassicaceae)
Geographic variation in flowering phenology in Boechera stricta: testing for adaptive response to climate across the species range
Data from: Strong selection genome-wide enhances fitness trade-offs across environments and episodes of selection
Microgeographic patterns of genetic divergence and adaptation across environmental gradients in <i>Boechera stricta</i>(Brassicaceae)
Data from: Climate change shifts natural selection and the adaptive potential of the perennial forb Boechera stricta in the Rocky Mountains
Genetic tradeoffs and conditional neutrality contribute to local adaptation
Native Plant Revegetation Guide for Colorado
Colorado?s Alpine Ecosystem Health ? A Case Study on San Juan, Sawatch, and West Elk Mountains
Biologically Significant Areas in Gunnison County Colorado
References (1)
1 references to works outside the Knowledge Hub