Identification of QTL Associated with Regrowth Vigor Using the Nested Association Mapping Population in Switchgrass.

ABSTRACT: Switchgrass (Panicum virgatum L.) is a warm-season perennial grass species that is utilized as forage for livestock and biofuel feedstock. The stability of biomass yield and regrowth vigor under changing harvest frequency would help manage potential fluctuations in the feedstock market and would provide a continuous supply of quality forage for livestock. This study was conducted to (i) assess the genetic variation and (ii) identify the quantitative trait loci (QTL) associated with regrowth vigor after multiple cuttings in lowland switchgrass. A nested association mapping (NAM) population comprising 2000 pseudo F₂ progenies was genotyped with single nucleotide polymorphism (SNP) markers derived from exome-capture sequencing and was evaluated for regrowth vigor in 2017 and

SUBMITTER: Nayak S 

PROVIDER: S-EPMC8874488 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature