Data from: Reindeer introgression and the population genetics of caribou in Southwestern Alaska
Alaska caribou (Rangifer tarandus granti) in southwestern Alaska are a poorly understood system, with differing descriptions of their regional population structure, population abundance that has varied greatly through time and instances of the release of domestic reindeer (R. t. tarandus) into their...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:85642 2023-07-02T03:33:35+02:00 Data from: Reindeer introgression and the population genetics of caribou in Southwestern Alaska Colson, Kevin E. Mager, Karen H. Hundertmark, Kris J. 2014-04-02T21:33:01.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-22-n5ru https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85642 unknown doi:10.5061/dryad.9qh56/1 doi:10.1093/jhered/esu030 PMID:24842565 http://nbn-resolving.org/urn:nbn:nl:ui:13-22-n5ru doi:10.5061/dryad.9qh56 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85642 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2014 ftdans https://doi.org/10.5061/dryad.9qh56/110.1093/jhered/esu03010.5061/dryad.9qh56 2023-06-13T13:12:48Z Alaska caribou (Rangifer tarandus granti) in southwestern Alaska are a poorly understood system, with differing descriptions of their regional population structure, population abundance that has varied greatly through time and instances of the release of domestic reindeer (R. t. tarandus) into their range. Here, we use 21 microsatellites and 297 individuals to investigate the genetic population structure of herds and examine for population bottlenecks. Then, using genetic characteristics of existing reindeer populations, we examine introgression into the wild caribou populations. Caribou of the area are genetically diverse (HE between 0.69 – 0.84), with diversity decreasing along the Alaska Peninsula (AP). Using GST and Jost’s D, we find extensive structuring among all herds; MIGRATE-N finds AP herds share few effective migrants with other herds, with South AP and Unimak Island herds having the least. Bayesian clustering techniques are able to resolve all but Denali and Mulchatna caribou herds. Using a conservative assignment threshold of qreindeer ≥ 0.2, 3% of caribou show signs of domestic introgression. Denali herd has the most introgressed individuals (6.9%); those caribou herds that were historically adjacent to smaller reindeer herds, or were historically without adjacent herding, show no admixture. This domestic introgression persists despite the lack of managed reindeer in the region since the 1940s. Our results suggest that despite previous movement data indicating metapopulation like dispersal in this region, there may be unknown barriers to reproduction by dispersing individuals. Finally, our results support findings that wild and domestic Rangifer can hybridize, and show this introgression may persist dozens of generations after domestics are no longer present. Other/Unknown Material Rangifer tarandus Alaska Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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Open Polar |
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Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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ftdans |
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unknown |
topic |
Life sciences medicine and health care |
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Life sciences medicine and health care Colson, Kevin E. Mager, Karen H. Hundertmark, Kris J. Data from: Reindeer introgression and the population genetics of caribou in Southwestern Alaska |
topic_facet |
Life sciences medicine and health care |
description |
Alaska caribou (Rangifer tarandus granti) in southwestern Alaska are a poorly understood system, with differing descriptions of their regional population structure, population abundance that has varied greatly through time and instances of the release of domestic reindeer (R. t. tarandus) into their range. Here, we use 21 microsatellites and 297 individuals to investigate the genetic population structure of herds and examine for population bottlenecks. Then, using genetic characteristics of existing reindeer populations, we examine introgression into the wild caribou populations. Caribou of the area are genetically diverse (HE between 0.69 – 0.84), with diversity decreasing along the Alaska Peninsula (AP). Using GST and Jost’s D, we find extensive structuring among all herds; MIGRATE-N finds AP herds share few effective migrants with other herds, with South AP and Unimak Island herds having the least. Bayesian clustering techniques are able to resolve all but Denali and Mulchatna caribou herds. Using a conservative assignment threshold of qreindeer ≥ 0.2, 3% of caribou show signs of domestic introgression. Denali herd has the most introgressed individuals (6.9%); those caribou herds that were historically adjacent to smaller reindeer herds, or were historically without adjacent herding, show no admixture. This domestic introgression persists despite the lack of managed reindeer in the region since the 1940s. Our results suggest that despite previous movement data indicating metapopulation like dispersal in this region, there may be unknown barriers to reproduction by dispersing individuals. Finally, our results support findings that wild and domestic Rangifer can hybridize, and show this introgression may persist dozens of generations after domestics are no longer present. |
author |
Colson, Kevin E. Mager, Karen H. Hundertmark, Kris J. |
author_facet |
Colson, Kevin E. Mager, Karen H. Hundertmark, Kris J. |
author_sort |
Colson, Kevin E. |
title |
Data from: Reindeer introgression and the population genetics of caribou in Southwestern Alaska |
title_short |
Data from: Reindeer introgression and the population genetics of caribou in Southwestern Alaska |
title_full |
Data from: Reindeer introgression and the population genetics of caribou in Southwestern Alaska |
title_fullStr |
Data from: Reindeer introgression and the population genetics of caribou in Southwestern Alaska |
title_full_unstemmed |
Data from: Reindeer introgression and the population genetics of caribou in Southwestern Alaska |
title_sort |
data from: reindeer introgression and the population genetics of caribou in southwestern alaska |
publishDate |
2014 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-22-n5ru https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85642 |
genre |
Rangifer tarandus Alaska |
genre_facet |
Rangifer tarandus Alaska |
op_relation |
doi:10.5061/dryad.9qh56/1 doi:10.1093/jhered/esu030 PMID:24842565 http://nbn-resolving.org/urn:nbn:nl:ui:13-22-n5ru doi:10.5061/dryad.9qh56 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85642 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.9qh56/110.1093/jhered/esu03010.5061/dryad.9qh56 |
_version_ |
1770273588243333120 |