Microsatellite variation and differentiation in north Atlantic eels
We screened 11 populations of American, European, and Icelandic eels (Anguillidae) for allelic variation and genetic divergence at six polymorphic microsatellite loci. Within either of the two recognized Anguilla species in the North Atlantic (rostrata in the Americas, anguilla in Europe), populatio...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.575.3956 2023-05-15T16:50:18+02:00 Microsatellite variation and differentiation in north Atlantic eels J. E. Mank J. C. Avise The Pennsylvania State University CiteSeerX Archives 2003 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.575.3956 http://jhered.oxfordjournals.org/content/94/4/310.full.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.575.3956 http://jhered.oxfordjournals.org/content/94/4/310.full.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://jhered.oxfordjournals.org/content/94/4/310.full.pdf text 2003 ftciteseerx 2016-01-08T12:43:38Z We screened 11 populations of American, European, and Icelandic eels (Anguillidae) for allelic variation and genetic divergence at six polymorphic microsatellite loci. Within either of the two recognized Anguilla species in the North Atlantic (rostrata in the Americas, anguilla in Europe), population genetic structure was statistically significant but weak; fully 95 % of the total genetic variation was present within geographic locales rather than distributed among them. The two Anguilla species also overlap greatly in allelic frequencies, so the available data proved ineffective for addressing hypotheses about the possible hybrid origins of some Icelandic eels. The overlapping microsatellite profiles contrast with nearly diagnostic species differences documented previously in allozymes and mtDNA. This and similar empirical findings in several other species support theoretical concerns that homoplasy (convergent evolution) in allelic states can compromise the utility of rapidly mutating microsatellite loci for certain types of microevolutionary questions regarding gene flow and species differences. Anguillid eels of the North Atlantic traditionally have been divided into two taxonomic species: Anguilla rostrata (Amer-ican eels) from the Western Hemisphere, and A. anguilla (European eels) from Europe, Iceland, and north Africa. However, only one quasi-diagnostic morphological feature is Text Iceland North Atlantic Unknown |
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English |
description |
We screened 11 populations of American, European, and Icelandic eels (Anguillidae) for allelic variation and genetic divergence at six polymorphic microsatellite loci. Within either of the two recognized Anguilla species in the North Atlantic (rostrata in the Americas, anguilla in Europe), population genetic structure was statistically significant but weak; fully 95 % of the total genetic variation was present within geographic locales rather than distributed among them. The two Anguilla species also overlap greatly in allelic frequencies, so the available data proved ineffective for addressing hypotheses about the possible hybrid origins of some Icelandic eels. The overlapping microsatellite profiles contrast with nearly diagnostic species differences documented previously in allozymes and mtDNA. This and similar empirical findings in several other species support theoretical concerns that homoplasy (convergent evolution) in allelic states can compromise the utility of rapidly mutating microsatellite loci for certain types of microevolutionary questions regarding gene flow and species differences. Anguillid eels of the North Atlantic traditionally have been divided into two taxonomic species: Anguilla rostrata (Amer-ican eels) from the Western Hemisphere, and A. anguilla (European eels) from Europe, Iceland, and north Africa. However, only one quasi-diagnostic morphological feature is |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
J. E. Mank J. C. Avise |
spellingShingle |
J. E. Mank J. C. Avise Microsatellite variation and differentiation in north Atlantic eels |
author_facet |
J. E. Mank J. C. Avise |
author_sort |
J. E. Mank |
title |
Microsatellite variation and differentiation in north Atlantic eels |
title_short |
Microsatellite variation and differentiation in north Atlantic eels |
title_full |
Microsatellite variation and differentiation in north Atlantic eels |
title_fullStr |
Microsatellite variation and differentiation in north Atlantic eels |
title_full_unstemmed |
Microsatellite variation and differentiation in north Atlantic eels |
title_sort |
microsatellite variation and differentiation in north atlantic eels |
publishDate |
2003 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.575.3956 http://jhered.oxfordjournals.org/content/94/4/310.full.pdf |
genre |
Iceland North Atlantic |
genre_facet |
Iceland North Atlantic |
op_source |
http://jhered.oxfordjournals.org/content/94/4/310.full.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.575.3956 http://jhered.oxfordjournals.org/content/94/4/310.full.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766040475919187968 |