QTL × environment interactions underlie adaptive divergence in switchgrass across a large latitudinal gradient.

ABSTRACT: Local adaptation is the process by which natural selection drives adaptive phenotypic divergence across environmental gradients. Theory suggests that local adaptation results from genetic trade-offs at individual genetic loci, where adaptation to one set of environmental conditions results in a cost to fitness in alternative environments. However, the degree to which there are costs associated with local adaptation is poorly understood because most of these experiments rely on two-site reciprocal transplant experiments. Here, we quantify the benefits and costs of locally adaptive loci across 17° of latitude in a four-grandparent outbred mapping population in outcrossing switchgrass (Panicum virgatum L.), an emerging biofuel crop and dominant tallgrass species. We conducted quantitat

SUBMITTER: Lowry DB 

PROVIDER: S-EPMC6600931 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature