Phylogeography and conservation genetics of the lesser white-fronted goose (Anser erythropus)
Abstract Analyses of mitochondrial control region sequences were used to infer phylogeny of Anser species, phylogeography of the lesser white-fronted goose, and genetic background of a captive stock. The genetic distances among the Anser species ranged from 0.9 to 5.5% in the complete control region...
Main Author: | |
---|---|
Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
Published: |
University of Oulu
2001
|
Subjects: | |
Online Access: | http://urn.fi/urn:isbn:9514259483 |
id |
ftunivoulu:oai:oulu.fi:isbn951-42-5948-3 |
---|---|
record_format |
openpolar |
spelling |
ftunivoulu:oai:oulu.fi:isbn951-42-5948-3 2023-07-30T03:56:18+02:00 Phylogeography and conservation genetics of the lesser white-fronted goose (Anser erythropus) Ruokonen, M. (Minna) 2001-03-28 application/pdf http://urn.fi/urn:isbn:9514259483 eng eng University of Oulu info:eu-repo/semantics/altIdentifier/pissn/0355-3191 info:eu-repo/semantics/altIdentifier/eissn/1796-220X info:eu-repo/semantics/openAccess © University of Oulu, 2001 conservation genetics mitochondrial control region phylogeography Anser info:eu-repo/semantics/doctoralThesis info:eu-repo/semantics/publishedVersion 2001 ftunivoulu 2023-07-08T20:01:14Z Abstract Analyses of mitochondrial control region sequences were used to infer phylogeny of Anser species, phylogeography of the lesser white-fronted goose, and genetic background of a captive stock. The genetic distances among the Anser species ranged from 0.9 to 5.5% in the complete control region sequences and supported the view of close relatedness of these species. Among the four most closely related species, the bean, pink-footed, white-fronted and lesser white-fronted goose, the branching order is uncertain. The short internal branches and low support for the branching order suggest that the species have diverged recently within short time-intervals. The mtDNA tree obtained is incongruent with the traditional view of the species relationships, but the reasons for this remain to be clarified. Two diverged mitochondrial lineages were found in the lesser white-fronted goose and a refugial origin was proposed. Basal haplotypes are geographically widespread and indicate a recent common ancestry for populations. The derived haplotypes are confined to singular breeding populations and suggest restrictions to the present female gene flow. A shift in the frequency of the mtDNA lineages approximately coincides with a migratory divide in the Taimyr Peninsula. Low mtDNA diversity and significant difference in the haplotype frequencies observed in Fennoscandian subpopulation suggested that it should be considered as a management unit. The fossil record was examined to gain additional information about the colonisation history of the species, but was found to be of limited use. The captive lesser white-fronted goose stock used for reintroduction/restocking was shown to be incompatible with the Fennoscandian wild population. Some captive individuals carried the mtDNA of the white-fronted goose suggesting a hybrid origin. Hybridisation has probably occurred during captive propagation, but to clarify further the extent of introgression, nuclear markers should be applied. The structure and evolution of the control region ... Doctoral or Postdoctoral Thesis Anser erythropus Fennoscandian lesser white-fronted goose Taimyr Jultika - University of Oulu repository |
institution |
Open Polar |
collection |
Jultika - University of Oulu repository |
op_collection_id |
ftunivoulu |
language |
English |
topic |
conservation genetics mitochondrial control region phylogeography Anser |
spellingShingle |
conservation genetics mitochondrial control region phylogeography Anser Ruokonen, M. (Minna) Phylogeography and conservation genetics of the lesser white-fronted goose (Anser erythropus) |
topic_facet |
conservation genetics mitochondrial control region phylogeography Anser |
description |
Abstract Analyses of mitochondrial control region sequences were used to infer phylogeny of Anser species, phylogeography of the lesser white-fronted goose, and genetic background of a captive stock. The genetic distances among the Anser species ranged from 0.9 to 5.5% in the complete control region sequences and supported the view of close relatedness of these species. Among the four most closely related species, the bean, pink-footed, white-fronted and lesser white-fronted goose, the branching order is uncertain. The short internal branches and low support for the branching order suggest that the species have diverged recently within short time-intervals. The mtDNA tree obtained is incongruent with the traditional view of the species relationships, but the reasons for this remain to be clarified. Two diverged mitochondrial lineages were found in the lesser white-fronted goose and a refugial origin was proposed. Basal haplotypes are geographically widespread and indicate a recent common ancestry for populations. The derived haplotypes are confined to singular breeding populations and suggest restrictions to the present female gene flow. A shift in the frequency of the mtDNA lineages approximately coincides with a migratory divide in the Taimyr Peninsula. Low mtDNA diversity and significant difference in the haplotype frequencies observed in Fennoscandian subpopulation suggested that it should be considered as a management unit. The fossil record was examined to gain additional information about the colonisation history of the species, but was found to be of limited use. The captive lesser white-fronted goose stock used for reintroduction/restocking was shown to be incompatible with the Fennoscandian wild population. Some captive individuals carried the mtDNA of the white-fronted goose suggesting a hybrid origin. Hybridisation has probably occurred during captive propagation, but to clarify further the extent of introgression, nuclear markers should be applied. The structure and evolution of the control region ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Ruokonen, M. (Minna) |
author_facet |
Ruokonen, M. (Minna) |
author_sort |
Ruokonen, M. (Minna) |
title |
Phylogeography and conservation genetics of the lesser white-fronted goose (Anser erythropus) |
title_short |
Phylogeography and conservation genetics of the lesser white-fronted goose (Anser erythropus) |
title_full |
Phylogeography and conservation genetics of the lesser white-fronted goose (Anser erythropus) |
title_fullStr |
Phylogeography and conservation genetics of the lesser white-fronted goose (Anser erythropus) |
title_full_unstemmed |
Phylogeography and conservation genetics of the lesser white-fronted goose (Anser erythropus) |
title_sort |
phylogeography and conservation genetics of the lesser white-fronted goose (anser erythropus) |
publisher |
University of Oulu |
publishDate |
2001 |
url |
http://urn.fi/urn:isbn:9514259483 |
genre |
Anser erythropus Fennoscandian lesser white-fronted goose Taimyr |
genre_facet |
Anser erythropus Fennoscandian lesser white-fronted goose Taimyr |
op_relation |
info:eu-repo/semantics/altIdentifier/pissn/0355-3191 info:eu-repo/semantics/altIdentifier/eissn/1796-220X |
op_rights |
info:eu-repo/semantics/openAccess © University of Oulu, 2001 |
_version_ |
1772812789566406656 |