Genetic variation in transferrin as a predictor for differentiation and evolution of caribou from eastern Canada
Polycrylamide gel electrophoresis was used to analyse tranferrrin variation in caribou populations from Manitoba, Ontario, Québec/Labrador, and from Baffin Island, Northwest Territories in eastern Canada. The transferrin allele frequencies in these populations were compared with those previously rep...
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Septentrio Academic Publishing
1991
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ftdoajarticles:oai:doaj.org/article:270ebfb504e54c0da023ec3eb8eb6c43 2023-05-15T15:35:22+02:00 Genetic variation in transferrin as a predictor for differentiation and evolution of caribou from eastern Canada Knut H. Røed Michael A. D. Ferguson Michel Crête Tom A. Bergerud 1991-10-01T00:00:00Z https://doi.org/10.7557/2.11.2.979 https://doaj.org/article/270ebfb504e54c0da023ec3eb8eb6c43 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/979 https://doaj.org/toc/1890-6729 doi:10.7557/2.11.2.979 1890-6729 https://doaj.org/article/270ebfb504e54c0da023ec3eb8eb6c43 Rangifer, Vol 11, Iss 2 (1991) caribou transferrins polymorphism evolution genetics types of reindeer Animal culture SF1-1100 article 1991 ftdoajarticles https://doi.org/10.7557/2.11.2.979 2022-12-31T14:03:29Z Polycrylamide gel electrophoresis was used to analyse tranferrrin variation in caribou populations from Manitoba, Ontario, Québec/Labrador, and from Baffin Island, Northwest Territories in eastern Canada. The transferrin allele frequencies in these populations were compared with those previously reported for Canadian barren-ground caribou, Rangifer tarandus groenlandicus, Alaska caribou, R.t. grand, Peary caribou, R.t. pearyi, Svalbard reindeer, R.t. pla-tyrhynchus, and Eurasian tundra reindeer, R.t. tarandus. A total of twenty different alleles was detected in the analysed material, considerable genetic heterogeneity being detected among regions. Three alleles that were relatively common in caribou from Ontario, Manitoba and Québec/Labrador, were not present in R.t. grand, R.t. pearyi, R.t. tarandus or R.t. platyrhynchus, and present only at very low frequencies 'm R.t. groenlandicus. These findings, together with genetic identity analyses, suggest that the caribou in Manitoba, Ontario, and Québec/Labrador are mainly of the R.t. caribou type, and that little interbreeding has occurred with other subspecies. The large genetic distance in the transferrin locus between R.t. caribou and other subspecies of reindeer/caribou suggests that, during the Wisconsin glaciation the ancestral populations of R.t. caribou survived in a refugium different from that of the ancestral populations of the other subspecies. Significant genetic differences between Baffin Island caribou and all other populations were mainly due to the presence of one allele that was in high frequency in Baffin Island caribou, but that was absent, or present in very low frequencies, in all other reindeer/caribou populations. The genetic differences between Baffin Island caribou and the other subspecies were greater than the differences between several of the currently recognized subspecies. Article in Journal/Newspaper Baffin Island Baffin caribou Northwest Territories Rangifer Rangifer tarandus Svalbard svalbard reindeer Tundra Alaska Directory of Open Access Journals: DOAJ Articles Svalbard Northwest Territories Baffin Island Canada Peary ENVELOPE(-63.867,-63.867,-65.250,-65.250) Rangifer 11 2 65 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
caribou transferrins polymorphism evolution genetics types of reindeer Animal culture SF1-1100 |
spellingShingle |
caribou transferrins polymorphism evolution genetics types of reindeer Animal culture SF1-1100 Knut H. Røed Michael A. D. Ferguson Michel Crête Tom A. Bergerud Genetic variation in transferrin as a predictor for differentiation and evolution of caribou from eastern Canada |
topic_facet |
caribou transferrins polymorphism evolution genetics types of reindeer Animal culture SF1-1100 |
description |
Polycrylamide gel electrophoresis was used to analyse tranferrrin variation in caribou populations from Manitoba, Ontario, Québec/Labrador, and from Baffin Island, Northwest Territories in eastern Canada. The transferrin allele frequencies in these populations were compared with those previously reported for Canadian barren-ground caribou, Rangifer tarandus groenlandicus, Alaska caribou, R.t. grand, Peary caribou, R.t. pearyi, Svalbard reindeer, R.t. pla-tyrhynchus, and Eurasian tundra reindeer, R.t. tarandus. A total of twenty different alleles was detected in the analysed material, considerable genetic heterogeneity being detected among regions. Three alleles that were relatively common in caribou from Ontario, Manitoba and Québec/Labrador, were not present in R.t. grand, R.t. pearyi, R.t. tarandus or R.t. platyrhynchus, and present only at very low frequencies 'm R.t. groenlandicus. These findings, together with genetic identity analyses, suggest that the caribou in Manitoba, Ontario, and Québec/Labrador are mainly of the R.t. caribou type, and that little interbreeding has occurred with other subspecies. The large genetic distance in the transferrin locus between R.t. caribou and other subspecies of reindeer/caribou suggests that, during the Wisconsin glaciation the ancestral populations of R.t. caribou survived in a refugium different from that of the ancestral populations of the other subspecies. Significant genetic differences between Baffin Island caribou and all other populations were mainly due to the presence of one allele that was in high frequency in Baffin Island caribou, but that was absent, or present in very low frequencies, in all other reindeer/caribou populations. The genetic differences between Baffin Island caribou and the other subspecies were greater than the differences between several of the currently recognized subspecies. |
format |
Article in Journal/Newspaper |
author |
Knut H. Røed Michael A. D. Ferguson Michel Crête Tom A. Bergerud |
author_facet |
Knut H. Røed Michael A. D. Ferguson Michel Crête Tom A. Bergerud |
author_sort |
Knut H. Røed |
title |
Genetic variation in transferrin as a predictor for differentiation and evolution of caribou from eastern Canada |
title_short |
Genetic variation in transferrin as a predictor for differentiation and evolution of caribou from eastern Canada |
title_full |
Genetic variation in transferrin as a predictor for differentiation and evolution of caribou from eastern Canada |
title_fullStr |
Genetic variation in transferrin as a predictor for differentiation and evolution of caribou from eastern Canada |
title_full_unstemmed |
Genetic variation in transferrin as a predictor for differentiation and evolution of caribou from eastern Canada |
title_sort |
genetic variation in transferrin as a predictor for differentiation and evolution of caribou from eastern canada |
publisher |
Septentrio Academic Publishing |
publishDate |
1991 |
url |
https://doi.org/10.7557/2.11.2.979 https://doaj.org/article/270ebfb504e54c0da023ec3eb8eb6c43 |
long_lat |
ENVELOPE(-63.867,-63.867,-65.250,-65.250) |
geographic |
Svalbard Northwest Territories Baffin Island Canada Peary |
geographic_facet |
Svalbard Northwest Territories Baffin Island Canada Peary |
genre |
Baffin Island Baffin caribou Northwest Territories Rangifer Rangifer tarandus Svalbard svalbard reindeer Tundra Alaska |
genre_facet |
Baffin Island Baffin caribou Northwest Territories Rangifer Rangifer tarandus Svalbard svalbard reindeer Tundra Alaska |
op_source |
Rangifer, Vol 11, Iss 2 (1991) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/979 https://doaj.org/toc/1890-6729 doi:10.7557/2.11.2.979 1890-6729 https://doaj.org/article/270ebfb504e54c0da023ec3eb8eb6c43 |
op_doi |
https://doi.org/10.7557/2.11.2.979 |
container_title |
Rangifer |
container_volume |
11 |
container_issue |
2 |
container_start_page |
65 |
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1766365708360351744 |