Peripheral genetic structure of Helicoverpa zea indicates asymmetrical panmixia.

ABSTRACT: Seasonal climatic shifts create peripheral habitats that alternate between habitable and uninhabitable for migratory species. Such dynamic peripheral habitats are potential sites where migratory species could evolve high genetic diversity resulting from convergence of immigrants from multiple regionally distant areas. Migrant populations of Helicoverpa zea (Boddie) captured during two different seasons were assessed for genetic structure using microsatellite markers and for host plant type using stable carbon isotope analysis. Individuals (N = 568) were genotyped and divided into 13 putative populations based on collection site and time. Fixation indices (F-statistics), analysis of molecular variance (AMOVA), and discriminant analysis of principal components (DAPC) were used to examine wit

SUBMITTER: Seymour M 

PROVIDER: S-EPMC4829043 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature