Population genomics of the eastern cottonwood (Populus deltoides).

ABSTRACT: Despite its economic importance as a bioenergy crop and key role in riparian ecosystems, little is known about genetic diversity and adaptation of the eastern cottonwood (Populus deltoides). Here, we report the first population genomics study for this species, conducted on a sample of 425 unrelated individuals collected in 13 states of the southeastern United States. The trees were genotyped by targeted resequencing of 18,153 genes and 23,835 intergenic regions, followed by the identification of single nucleotide polymorphisms (SNPs). This natural P. deltoides population showed low levels of subpopulation differentiation (F_ST = 0.022-0.106), high genetic diversity (θ_W = 0.00100, π = 0.00170), a large effective population size (N_e

SUBMITTER: Fahrenkrog AM 

PROVIDER: S-EPMC5696417 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature