Non‐equilibrium gene frequency divergence: persistent founder effects in natural populations
Abstract The estimation of gene flow using gene frequency divergence information has become increasingly popular because of the difficulty involved in the direct determination of gene flow among populations. The present study examined allozyme gene frequencies in populations of eighteen aquatic inve...
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crwiley:10.1046/j.1420-9101.1992.5010025.x 2023-12-03T10:25:04+01:00 Non‐equilibrium gene frequency divergence: persistent founder effects in natural populations Boileau, Marc G. Hebert, Paul D. N. Schwartz, Steven S. 1992 http://dx.doi.org/10.1046/j.1420-9101.1992.5010025.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.1992.5010025.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1420-9101.1992.5010025.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Evolutionary Biology volume 5, issue 1, page 25-39 ISSN 1010-061X 1420-9101 Ecology, Evolution, Behavior and Systematics journal-article 1992 crwiley https://doi.org/10.1046/j.1420-9101.1992.5010025.x 2023-11-09T14:35:22Z Abstract The estimation of gene flow using gene frequency divergence information has become increasingly popular because of the difficulty involved in the direct determination of gene flow among populations. The present study examined allozyme gene frequencies in populations of eighteen aquatic invertebrate taxa at two sites in northern Canada. Gene frequencies at polymorpic loci were significantly different among 8–31 localized populations of all species at Igloolik and among 10–36 populations at Churchill confirming the generality of gene pool fragmentation in pond‐dwelling organisms. Measures of gene flow estimated from gene frequency divergence, which assume that gene frequency distributions are at equilibrium, were inconsistent with the probable dispersal capacities of taxa. This provoked an examination of historical events as alternative explanations. Both theory and computer simulations demonstrated that when populations grow rapidly in size after founding from few individuals, the gene frequency divergence established during colonization is resistant to decay by gene exchange. Our work suggests that gene frequency distributions are often not in equilibrium and that caution should be employed in attempts to infer gene flow from them in natural populations. Article in Journal/Newspaper Igloolik Wiley Online Library (via Crossref) Canada Igloolik ENVELOPE(-81.800,-81.800,69.378,69.378) Journal of Evolutionary Biology 5 1 25 39 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Boileau, Marc G. Hebert, Paul D. N. Schwartz, Steven S. Non‐equilibrium gene frequency divergence: persistent founder effects in natural populations |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
Abstract The estimation of gene flow using gene frequency divergence information has become increasingly popular because of the difficulty involved in the direct determination of gene flow among populations. The present study examined allozyme gene frequencies in populations of eighteen aquatic invertebrate taxa at two sites in northern Canada. Gene frequencies at polymorpic loci were significantly different among 8–31 localized populations of all species at Igloolik and among 10–36 populations at Churchill confirming the generality of gene pool fragmentation in pond‐dwelling organisms. Measures of gene flow estimated from gene frequency divergence, which assume that gene frequency distributions are at equilibrium, were inconsistent with the probable dispersal capacities of taxa. This provoked an examination of historical events as alternative explanations. Both theory and computer simulations demonstrated that when populations grow rapidly in size after founding from few individuals, the gene frequency divergence established during colonization is resistant to decay by gene exchange. Our work suggests that gene frequency distributions are often not in equilibrium and that caution should be employed in attempts to infer gene flow from them in natural populations. |
format |
Article in Journal/Newspaper |
author |
Boileau, Marc G. Hebert, Paul D. N. Schwartz, Steven S. |
author_facet |
Boileau, Marc G. Hebert, Paul D. N. Schwartz, Steven S. |
author_sort |
Boileau, Marc G. |
title |
Non‐equilibrium gene frequency divergence: persistent founder effects in natural populations |
title_short |
Non‐equilibrium gene frequency divergence: persistent founder effects in natural populations |
title_full |
Non‐equilibrium gene frequency divergence: persistent founder effects in natural populations |
title_fullStr |
Non‐equilibrium gene frequency divergence: persistent founder effects in natural populations |
title_full_unstemmed |
Non‐equilibrium gene frequency divergence: persistent founder effects in natural populations |
title_sort |
non‐equilibrium gene frequency divergence: persistent founder effects in natural populations |
publisher |
Wiley |
publishDate |
1992 |
url |
http://dx.doi.org/10.1046/j.1420-9101.1992.5010025.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.1992.5010025.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1420-9101.1992.5010025.x |
long_lat |
ENVELOPE(-81.800,-81.800,69.378,69.378) |
geographic |
Canada Igloolik |
geographic_facet |
Canada Igloolik |
genre |
Igloolik |
genre_facet |
Igloolik |
op_source |
Journal of Evolutionary Biology volume 5, issue 1, page 25-39 ISSN 1010-061X 1420-9101 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1420-9101.1992.5010025.x |
container_title |
Journal of Evolutionary Biology |
container_volume |
5 |
container_issue |
1 |
container_start_page |
25 |
op_container_end_page |
39 |
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1784273741387137024 |