Fine-scale genetic structure among greater sage-grouse leks in central Nevada.

ABSTRACT:

Background

Mating systems that reduce dispersal and lead to non-random mating might increase the potential for genetic structure to arise at fine geographic scales. Greater sage-grouse (Centrocercus urophasianus) have a lek-based mating system and exhibit high site fidelity and skewed mating ratios. We quantified population structure by analyzing variation at 27,866 single-nucleotide polymorphisms in 140 males from ten leks (within five lek complexes) occurring in a small geographic region in central Nevada.

Results

Lek complexes, and to a lesser extent individual leks, formed statistically identifiable clusters in ordination analyses, providing evidence for fine-scale geographic genetic differentiation. Lek geography predicted genetic differentiation even at a small geograp

SUBMITTER: Jahner JP 

PROVIDER: S-EPMC4908695 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature