We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Population genetic structure and assessment of allochronic divergence in the Macoun's Arctic (Oeneis macounii) butterfly.
- Authors
Gradish, A.E.; Otis, G.W.; Keyghobadi, N.; Sperling, F.A.H.
- Abstract
Patterns in the genetic variation of species can be used to infer their specific demographic and evolutionary history and provide insight into the general mechanisms underlying population divergence and speciation. The Macoun's Arctic (Oeneis macounii (W.H. Edwards, 1885); MA) butterfly occurs across Canada and parts of the northern United States in association with jack pine (Pinus banksiana Lamb.) and lodgepole pine (Pinus contorta Douglas ex Loudon). MA's current distribution is highly fragmented, and the extent of reproductive isolation among allopatric populations is unknown. Furthermore, although MA is biennial, adults emerge every year in some populations. These populations presumably consist of two alternate-year cohorts, providing the opportunity for sympatric divergence via allochronic isolation. Using mitochondrial DNA (mtDNA) and amplified fragment length polymorphism (AFLP) markers, we analyzed MA's genetic structure to determine the current and historical role of allopatric and allochronic isolation in MA population divergence. Both markers revealed high diversity and a low, but significant, degree of spatial structure and pattern of isolation by distance. Phylogeographic structure was generally absent, with low divergence among mtDNA haplotypes. MA likely exhibits low dispersal and gene flow among most allopatric populations; however, there was no evidence of differentiation resulting from allochronic isolation for sympatric cohorts.
- Subjects
POPULATION; BUTTERFLIES; AMPLIFIED fragment length polymorphism; LODGEPOLE pine; MITOCHONDRIAL DNA
- Publication
Canadian Journal of Zoology, 2019, Vol 97, Issue 2, p121
- ISSN
0008-4301
- Publication type
Article
- DOI
10.1139/cjz-2018-0117