Population genetic structure and assessment of allochronic divergence in the Macoun’s Arctic ( Oeneis macounii) butterfly
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 acros...
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crcansciencepubl:10.1139/cjz-2018-0117 2024-06-23T07:50:05+00:00 Population genetic structure and assessment of allochronic divergence in the Macoun’s Arctic ( Oeneis macounii) butterfly Gradish, A.E. Keyghobadi, N. Sperling, F.A.H. Otis, G.W. 2019 http://dx.doi.org/10.1139/cjz-2018-0117 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2018-0117 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2018-0117 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 97, issue 2, page 121-130 ISSN 0008-4301 1480-3283 journal-article 2019 crcansciencepubl https://doi.org/10.1139/cjz-2018-0117 2024-05-24T13:05:51Z 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. Article in Journal/Newspaper Arctic Canadian Science Publishing Arctic Canada Canadian Journal of Zoology 97 2 121 130 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Gradish, A.E. Keyghobadi, N. Sperling, F.A.H. Otis, G.W. |
spellingShingle |
Gradish, A.E. Keyghobadi, N. Sperling, F.A.H. Otis, G.W. Population genetic structure and assessment of allochronic divergence in the Macoun’s Arctic ( Oeneis macounii) butterfly |
author_facet |
Gradish, A.E. Keyghobadi, N. Sperling, F.A.H. Otis, G.W. |
author_sort |
Gradish, A.E. |
title |
Population genetic structure and assessment of allochronic divergence in the Macoun’s Arctic ( Oeneis macounii) butterfly |
title_short |
Population genetic structure and assessment of allochronic divergence in the Macoun’s Arctic ( Oeneis macounii) butterfly |
title_full |
Population genetic structure and assessment of allochronic divergence in the Macoun’s Arctic ( Oeneis macounii) butterfly |
title_fullStr |
Population genetic structure and assessment of allochronic divergence in the Macoun’s Arctic ( Oeneis macounii) butterfly |
title_full_unstemmed |
Population genetic structure and assessment of allochronic divergence in the Macoun’s Arctic ( Oeneis macounii) butterfly |
title_sort |
population genetic structure and assessment of allochronic divergence in the macoun’s arctic ( oeneis macounii) butterfly |
publisher |
Canadian Science Publishing |
publishDate |
2019 |
url |
http://dx.doi.org/10.1139/cjz-2018-0117 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2018-0117 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2018-0117 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Canadian Journal of Zoology volume 97, issue 2, page 121-130 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjz-2018-0117 |
container_title |
Canadian Journal of Zoology |
container_volume |
97 |
container_issue |
2 |
container_start_page |
121 |
op_container_end_page |
130 |
_version_ |
1802640843912249344 |