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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Data Archiving and Networked Services (DANS)
2014
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Online Access: | https://doi.org/10.5061/dryad.9qh56 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::9450be5081a2c1b54c106a838cc321e9 2023-05-15T18:04:17+02:00 Data from: Reindeer introgression and the population genetics of caribou in Southwestern Alaska Colson, Kevin E. Mager, Karen H. Hundertmark, Kris J. 2014-01-01 https://doi.org/10.5061/dryad.9qh56 undefined unknown Data Archiving and Networked Services (DANS) http://dx.doi.org/10.5061/dryad.9qh56 https://dx.doi.org/10.5061/dryad.9qh56 lic_creative-commons oai:easy.dans.knaw.nl:easy-dataset:85642 10.5061/dryad.9qh56 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:85642 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 re3data_____::r3d100000044 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Life sciences medicine and health care Domestic introgression Bayesian assignment Genetic bottlenecks Rangifer tarandus Conservation genetics and biodiversity Population structure and phylogeography population genetics Alaska Alaska peninsula Unimak Island demo geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2014 fttriple https://doi.org/10.5061/dryad.9qh56 2023-01-22T16:53:09Z 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. Microsatellite GenotypesMicrosatellite Genotypes for reindeer and caribou in Alaska, USA. A text file formatted in Genalex format.DryadData.txt Dataset Rangifer tarandus Alaska Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care Domestic introgression Bayesian assignment Genetic bottlenecks Rangifer tarandus Conservation genetics and biodiversity Population structure and phylogeography population genetics Alaska Alaska peninsula Unimak Island demo geo |
spellingShingle |
Life sciences medicine and health care Domestic introgression Bayesian assignment Genetic bottlenecks Rangifer tarandus Conservation genetics and biodiversity Population structure and phylogeography population genetics Alaska Alaska peninsula Unimak Island demo geo 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 Domestic introgression Bayesian assignment Genetic bottlenecks Rangifer tarandus Conservation genetics and biodiversity Population structure and phylogeography population genetics Alaska Alaska peninsula Unimak Island demo geo |
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. Microsatellite GenotypesMicrosatellite Genotypes for reindeer and caribou in Alaska, USA. A text file formatted in Genalex format.DryadData.txt |
format |
Dataset |
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 |
publisher |
Data Archiving and Networked Services (DANS) |
publishDate |
2014 |
url |
https://doi.org/10.5061/dryad.9qh56 |
genre |
Rangifer tarandus Alaska |
genre_facet |
Rangifer tarandus Alaska |
op_source |
oai:easy.dans.knaw.nl:easy-dataset:85642 10.5061/dryad.9qh56 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:85642 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 re3data_____::r3d100000044 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
http://dx.doi.org/10.5061/dryad.9qh56 https://dx.doi.org/10.5061/dryad.9qh56 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.9qh56 |
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1766175627209080832 |