Microsatellite Analysis of Paternity and Reproduction in Arctic Grizzly Bears
We report data from analyses of microsatellite loci of 30 grizzly bear family groups which demonstrate that each cub in a litter can be sired independently, and we derive estimates of maximum reproductive success for males, from an Arctic population in northwestern Alaska that is minimally affected...
Main Authors: | , , , , |
---|---|
Format: | Text |
Language: | English |
Published: |
Oxford University Press
1995
|
Subjects: | |
Online Access: | http://jhered.oxfordjournals.org/cgi/content/short/86/4/255 |
id |
fthighwire:oai:open-archive.highwire.org:jhered:86/4/255 |
---|---|
record_format |
openpolar |
spelling |
fthighwire:oai:open-archive.highwire.org:jhered:86/4/255 2023-05-15T14:54:06+02:00 Microsatellite Analysis of Paternity and Reproduction in Arctic Grizzly Bears Craighead, L. Paetkau, D. Reynolds, H. V. Vyse, E. R. Strobeck, C. 1995-07-01 00:00:00.0 text/html http://jhered.oxfordjournals.org/cgi/content/short/86/4/255 en eng Oxford University Press http://jhered.oxfordjournals.org/cgi/content/short/86/4/255 Copyright (C) 1995, American Genetic Association Articles TEXT 1995 fthighwire 2013-05-28T01:19:15Z We report data from analyses of microsatellite loci of 30 grizzly bear family groups which demonstrate that each cub in a litter can be sired independently, and we derive estimates of maximum reproductive success for males, from an Arctic population in northwestern Alaska that is minimally affected by human activities. These analyses were made possible by the use of single-locus primers that amplified both of an individual's alleles at eight microsatellite loci and by detailed knowledge of maternal/offspring relationships that allowed the identification of paternal alleles. No single male was responsible for more than approximately 11% of known off-spring, and no more than 49% of breeding-age males successfully bred. These data contribute to an understanding of the genetic and demographic basis of male reproductive success, which is of vital importance in the maintenance of small, isolated grizzly bear populations. Text Arctic Arctic Population Alaska HighWire Press (Stanford University) Arctic |
institution |
Open Polar |
collection |
HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
Articles |
spellingShingle |
Articles Craighead, L. Paetkau, D. Reynolds, H. V. Vyse, E. R. Strobeck, C. Microsatellite Analysis of Paternity and Reproduction in Arctic Grizzly Bears |
topic_facet |
Articles |
description |
We report data from analyses of microsatellite loci of 30 grizzly bear family groups which demonstrate that each cub in a litter can be sired independently, and we derive estimates of maximum reproductive success for males, from an Arctic population in northwestern Alaska that is minimally affected by human activities. These analyses were made possible by the use of single-locus primers that amplified both of an individual's alleles at eight microsatellite loci and by detailed knowledge of maternal/offspring relationships that allowed the identification of paternal alleles. No single male was responsible for more than approximately 11% of known off-spring, and no more than 49% of breeding-age males successfully bred. These data contribute to an understanding of the genetic and demographic basis of male reproductive success, which is of vital importance in the maintenance of small, isolated grizzly bear populations. |
format |
Text |
author |
Craighead, L. Paetkau, D. Reynolds, H. V. Vyse, E. R. Strobeck, C. |
author_facet |
Craighead, L. Paetkau, D. Reynolds, H. V. Vyse, E. R. Strobeck, C. |
author_sort |
Craighead, L. |
title |
Microsatellite Analysis of Paternity and Reproduction in Arctic Grizzly Bears |
title_short |
Microsatellite Analysis of Paternity and Reproduction in Arctic Grizzly Bears |
title_full |
Microsatellite Analysis of Paternity and Reproduction in Arctic Grizzly Bears |
title_fullStr |
Microsatellite Analysis of Paternity and Reproduction in Arctic Grizzly Bears |
title_full_unstemmed |
Microsatellite Analysis of Paternity and Reproduction in Arctic Grizzly Bears |
title_sort |
microsatellite analysis of paternity and reproduction in arctic grizzly bears |
publisher |
Oxford University Press |
publishDate |
1995 |
url |
http://jhered.oxfordjournals.org/cgi/content/short/86/4/255 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Population Alaska |
genre_facet |
Arctic Arctic Population Alaska |
op_relation |
http://jhered.oxfordjournals.org/cgi/content/short/86/4/255 |
op_rights |
Copyright (C) 1995, American Genetic Association |
_version_ |
1766325780707540992 |