Did bowhead whales (Balaena mysticetus) from the Bering-Chukchi-Beaufort Seas undergo a genetic bottleneck? A test using nuclear microsatellite loci
This study reexamines the nuclear microsatellite analysis by Rooney et al. (1999a) of Bering-Chukchi-Beaufort Seas bowhead whales (Balaena mysticetus) to determine if this population underwent a genetic bottleneck as a result of 19th and early 20th Century commercial whaling. This investigation used...
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Texas A&M University
2005
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fttexasamuniv:oai:repository.tamu.edu:1969.1/2648 2023-05-15T15:35:57+02:00 Did bowhead whales (Balaena mysticetus) from the Bering-Chukchi-Beaufort Seas undergo a genetic bottleneck? A test using nuclear microsatellite loci Bickham, John W. Honeycutt, Rodney L. Wharton, Robert A. 2005-11-01T15:48:25Z http://hdl.handle.net/1969.1/2648 en_US eng Texas A&M University http://hdl.handle.net/1969.1/2648 bowhead whale Balaena mysticetus genetic bottleneck microsatellite loci heterozygosity excess allele frequency Book Thesis 2005 fttexasamuniv 2014-03-30T08:48:11Z This study reexamines the nuclear microsatellite analysis by Rooney et al. (1999a) of Bering-Chukchi-Beaufort Seas bowhead whales (Balaena mysticetus) to determine if this population underwent a genetic bottleneck as a result of 19th and early 20th Century commercial whaling. This investigation used more accurate laboratory techniques to score alleles, had a larger sample size that was divided into two groups (mainland Alaska and St. Lawrence Island (SLI)), and used a moderately different set of microsatellite loci which are more variable and thus, more informative. The results corroborate the findings of Rooney et al. (1999a) for mainland Alaska showing no evidence of a genetic bottleneck. However, the SLI data analyses provide conflicting conclusions. The Wilcoxon test is significant for a heterozygote excess (p = 0.042) suggesting that a genetic bottleneck has occurred. This is not substantiated by the exact tests of each locus or the table-wide sign test. There is a possibility that a bottleneck has occurred, but due to the small sample size this is not a definitive conclusion and warrants reanalysis with a larger sample size. Book Balaena mysticetus bowhead whale Chukchi St Lawrence Island Alaska Texas A&M University Digital Repository Lawrence Island ENVELOPE(-103.718,-103.718,56.967,56.967) |
institution |
Open Polar |
collection |
Texas A&M University Digital Repository |
op_collection_id |
fttexasamuniv |
language |
English |
topic |
bowhead whale Balaena mysticetus genetic bottleneck microsatellite loci heterozygosity excess allele frequency |
spellingShingle |
bowhead whale Balaena mysticetus genetic bottleneck microsatellite loci heterozygosity excess allele frequency Did bowhead whales (Balaena mysticetus) from the Bering-Chukchi-Beaufort Seas undergo a genetic bottleneck? A test using nuclear microsatellite loci |
topic_facet |
bowhead whale Balaena mysticetus genetic bottleneck microsatellite loci heterozygosity excess allele frequency |
description |
This study reexamines the nuclear microsatellite analysis by Rooney et al. (1999a) of Bering-Chukchi-Beaufort Seas bowhead whales (Balaena mysticetus) to determine if this population underwent a genetic bottleneck as a result of 19th and early 20th Century commercial whaling. This investigation used more accurate laboratory techniques to score alleles, had a larger sample size that was divided into two groups (mainland Alaska and St. Lawrence Island (SLI)), and used a moderately different set of microsatellite loci which are more variable and thus, more informative. The results corroborate the findings of Rooney et al. (1999a) for mainland Alaska showing no evidence of a genetic bottleneck. However, the SLI data analyses provide conflicting conclusions. The Wilcoxon test is significant for a heterozygote excess (p = 0.042) suggesting that a genetic bottleneck has occurred. This is not substantiated by the exact tests of each locus or the table-wide sign test. There is a possibility that a bottleneck has occurred, but due to the small sample size this is not a definitive conclusion and warrants reanalysis with a larger sample size. |
author2 |
Bickham, John W. Honeycutt, Rodney L. Wharton, Robert A. |
format |
Book |
title |
Did bowhead whales (Balaena mysticetus) from the Bering-Chukchi-Beaufort Seas undergo a genetic bottleneck? A test using nuclear microsatellite loci |
title_short |
Did bowhead whales (Balaena mysticetus) from the Bering-Chukchi-Beaufort Seas undergo a genetic bottleneck? A test using nuclear microsatellite loci |
title_full |
Did bowhead whales (Balaena mysticetus) from the Bering-Chukchi-Beaufort Seas undergo a genetic bottleneck? A test using nuclear microsatellite loci |
title_fullStr |
Did bowhead whales (Balaena mysticetus) from the Bering-Chukchi-Beaufort Seas undergo a genetic bottleneck? A test using nuclear microsatellite loci |
title_full_unstemmed |
Did bowhead whales (Balaena mysticetus) from the Bering-Chukchi-Beaufort Seas undergo a genetic bottleneck? A test using nuclear microsatellite loci |
title_sort |
did bowhead whales (balaena mysticetus) from the bering-chukchi-beaufort seas undergo a genetic bottleneck? a test using nuclear microsatellite loci |
publisher |
Texas A&M University |
publishDate |
2005 |
url |
http://hdl.handle.net/1969.1/2648 |
long_lat |
ENVELOPE(-103.718,-103.718,56.967,56.967) |
geographic |
Lawrence Island |
geographic_facet |
Lawrence Island |
genre |
Balaena mysticetus bowhead whale Chukchi St Lawrence Island Alaska |
genre_facet |
Balaena mysticetus bowhead whale Chukchi St Lawrence Island Alaska |
op_relation |
http://hdl.handle.net/1969.1/2648 |
_version_ |
1766366290306400256 |