Quantitative Trait Loci for Freezing Tolerance in a Lowland x Upland Switchgrass Population.

ABSTRACT: Low-temperature related abiotic stress is an important factor affecting winter survival in lowland switchgrass when grown in northern latitudes in the United States. A better understanding of the genetic architecture of freezing tolerance in switchgrass will aid the development of lowland switchgrass cultivars with improved winter survival. The objectives of this study were to conduct a freezing tolerance assessment, generate a genetic map using single nucleotide polymorphism (SNP) markers, and identify QTL (quantitative trait loci) associated with freezing tolerance in a lowland × upland switchgrass population. A pseudo-F₂ mapping population was generated from an initial cross between the lowland population Ellsworth and the upland cultivar Summer. The segregating progenies wer

SUBMITTER: Poudel HP 

PROVIDER: S-EPMC6450214 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature