A comparison of diversity in the zfy gene in two species of pinnipeds with different breeding strategies
Sequence variation was examined for the Zinc-finger Y (zfy) gene and the mitochondrial control region for two species of pinnipeds, the Steller sea lion (Eumetopias jubatus) and harbor seal (Phoca vitulina). The two species differ in aspects of their breeding strategies, dispersal, and life historie...
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Texas A&M University
2006
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fttexasamuniv:oai:oaktrust.library.tamu.edu:1969.1/3217 2023-07-16T03:58:52+02:00 A comparison of diversity in the zfy gene in two species of pinnipeds with different breeding strategies Sweny, Jason Michael Bickham, John W. Honeycutt, Rodney L. Johnston, J. Spencer 2006-04-12 215958 bytes electronic application/pdf born digital https://hdl.handle.net/1969.1/3217 en_US eng Texas A&M University https://hdl.handle.net/1969.1/3217 Zfy Pinniped Eumetopias jubatus Phoca vitulina Population Genetics Book Thesis Electronic Thesis text 2006 fttexasamuniv 2023-06-27T22:10:00Z Sequence variation was examined for the Zinc-finger Y (zfy) gene and the mitochondrial control region for two species of pinnipeds, the Steller sea lion (Eumetopias jubatus) and harbor seal (Phoca vitulina). The two species differ in aspects of their breeding strategies, dispersal, and life histories. Comparable stock sample sizes of males from each species were taken from localities that span at least one wellrecognized phylogeographic stock as defined by mtDNA markers. Variation in zfy, a strictly paternally inherited marker located on the Y chromosome, was low in both species. An interesting pattern of subdivision was found for zfy in harbor seals that was concordant with population subdivision for mtDNA. In Steller sea lions, no such concordant pattern was evident with only a single rare zfy variant being observed. One explanation for the different patterns observed is that dispersal is less in male harbor seals than in male Steller sea lions. Book harbor seal Phoca vitulina Texas A&M University Digital Repository The ''Y'' ENVELOPE(-112.453,-112.453,57.591,57.591) |
institution |
Open Polar |
collection |
Texas A&M University Digital Repository |
op_collection_id |
fttexasamuniv |
language |
English |
topic |
Zfy Pinniped Eumetopias jubatus Phoca vitulina Population Genetics |
spellingShingle |
Zfy Pinniped Eumetopias jubatus Phoca vitulina Population Genetics Sweny, Jason Michael A comparison of diversity in the zfy gene in two species of pinnipeds with different breeding strategies |
topic_facet |
Zfy Pinniped Eumetopias jubatus Phoca vitulina Population Genetics |
description |
Sequence variation was examined for the Zinc-finger Y (zfy) gene and the mitochondrial control region for two species of pinnipeds, the Steller sea lion (Eumetopias jubatus) and harbor seal (Phoca vitulina). The two species differ in aspects of their breeding strategies, dispersal, and life histories. Comparable stock sample sizes of males from each species were taken from localities that span at least one wellrecognized phylogeographic stock as defined by mtDNA markers. Variation in zfy, a strictly paternally inherited marker located on the Y chromosome, was low in both species. An interesting pattern of subdivision was found for zfy in harbor seals that was concordant with population subdivision for mtDNA. In Steller sea lions, no such concordant pattern was evident with only a single rare zfy variant being observed. One explanation for the different patterns observed is that dispersal is less in male harbor seals than in male Steller sea lions. |
author2 |
Bickham, John W. Honeycutt, Rodney L. Johnston, J. Spencer |
format |
Book |
author |
Sweny, Jason Michael |
author_facet |
Sweny, Jason Michael |
author_sort |
Sweny, Jason Michael |
title |
A comparison of diversity in the zfy gene in two species of pinnipeds with different breeding strategies |
title_short |
A comparison of diversity in the zfy gene in two species of pinnipeds with different breeding strategies |
title_full |
A comparison of diversity in the zfy gene in two species of pinnipeds with different breeding strategies |
title_fullStr |
A comparison of diversity in the zfy gene in two species of pinnipeds with different breeding strategies |
title_full_unstemmed |
A comparison of diversity in the zfy gene in two species of pinnipeds with different breeding strategies |
title_sort |
comparison of diversity in the zfy gene in two species of pinnipeds with different breeding strategies |
publisher |
Texas A&M University |
publishDate |
2006 |
url |
https://hdl.handle.net/1969.1/3217 |
long_lat |
ENVELOPE(-112.453,-112.453,57.591,57.591) |
geographic |
The ''Y'' |
geographic_facet |
The ''Y'' |
genre |
harbor seal Phoca vitulina |
genre_facet |
harbor seal Phoca vitulina |
op_relation |
https://hdl.handle.net/1969.1/3217 |
_version_ |
1771546217423044608 |