Unequal Contribution of Sexes in the Origin of Dog Breeds
Abstract Dogs (Canis familiaris) were domesticated from the gray wolf (Canis lupus) at least 14,000 years ago, and there is evidence of dogs with phenotypes similar to those in modern breeds 4000 years ago. However, recent genetic analyses have suggested that modern dog breeds have a much more recen...
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Online Access: | http://dx.doi.org/10.1534/genetics.105.042358 https://academic.oup.com/genetics/article-pdf/172/2/1121/42068945/genetics1121.pdf |
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croxfordunivpr:10.1534/genetics.105.042358 2024-04-28T08:15:25+00:00 Unequal Contribution of Sexes in the Origin of Dog Breeds Sundqvist, A-K Björnerfeldt, S Leonard, J A Hailer, F Hedhammar, Å Ellegren, H Vilà, C 2006 http://dx.doi.org/10.1534/genetics.105.042358 https://academic.oup.com/genetics/article-pdf/172/2/1121/42068945/genetics1121.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Genetics volume 172, issue 2, page 1121-1128 ISSN 1943-2631 Genetics journal-article 2006 croxfordunivpr https://doi.org/10.1534/genetics.105.042358 2024-04-09T07:55:36Z Abstract Dogs (Canis familiaris) were domesticated from the gray wolf (Canis lupus) at least 14,000 years ago, and there is evidence of dogs with phenotypes similar to those in modern breeds 4000 years ago. However, recent genetic analyses have suggested that modern dog breeds have a much more recent origin, probably <200 years ago. To study the origin of contemporaneous breeds we combined the analysis of paternally inherited Y chromosome markers with maternally inherited mitochondrial DNA and biparentally inherited autosomal microsatellite markers in both domestic dogs and their wild ancestor, the gray wolf. Our results show a sex bias in the origin of breeds, with fewer males than females contributing genetically, which clearly differs from the breeding patterns in wild gray wolf populations where both sexes have similar contributions. Furthermore, a comparison of mitochondrial DNA and Y chromosome diversity in dog groups recognized by the World Canine Organization, as well as in groups defined by the breeds' genetic composition, shows that paternal lineages are more differentiated among groups than maternal lineages. This demonstrates a lower exchange of males than of females between breeds belonging to different groups, which illustrates how breed founders may have been chosen. Article in Journal/Newspaper Canis lupus gray wolf Oxford University Press Genetics 172 2 1121 1128 |
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Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Genetics |
spellingShingle |
Genetics Sundqvist, A-K Björnerfeldt, S Leonard, J A Hailer, F Hedhammar, Å Ellegren, H Vilà, C Unequal Contribution of Sexes in the Origin of Dog Breeds |
topic_facet |
Genetics |
description |
Abstract Dogs (Canis familiaris) were domesticated from the gray wolf (Canis lupus) at least 14,000 years ago, and there is evidence of dogs with phenotypes similar to those in modern breeds 4000 years ago. However, recent genetic analyses have suggested that modern dog breeds have a much more recent origin, probably <200 years ago. To study the origin of contemporaneous breeds we combined the analysis of paternally inherited Y chromosome markers with maternally inherited mitochondrial DNA and biparentally inherited autosomal microsatellite markers in both domestic dogs and their wild ancestor, the gray wolf. Our results show a sex bias in the origin of breeds, with fewer males than females contributing genetically, which clearly differs from the breeding patterns in wild gray wolf populations where both sexes have similar contributions. Furthermore, a comparison of mitochondrial DNA and Y chromosome diversity in dog groups recognized by the World Canine Organization, as well as in groups defined by the breeds' genetic composition, shows that paternal lineages are more differentiated among groups than maternal lineages. This demonstrates a lower exchange of males than of females between breeds belonging to different groups, which illustrates how breed founders may have been chosen. |
format |
Article in Journal/Newspaper |
author |
Sundqvist, A-K Björnerfeldt, S Leonard, J A Hailer, F Hedhammar, Å Ellegren, H Vilà, C |
author_facet |
Sundqvist, A-K Björnerfeldt, S Leonard, J A Hailer, F Hedhammar, Å Ellegren, H Vilà, C |
author_sort |
Sundqvist, A-K |
title |
Unequal Contribution of Sexes in the Origin of Dog Breeds |
title_short |
Unequal Contribution of Sexes in the Origin of Dog Breeds |
title_full |
Unequal Contribution of Sexes in the Origin of Dog Breeds |
title_fullStr |
Unequal Contribution of Sexes in the Origin of Dog Breeds |
title_full_unstemmed |
Unequal Contribution of Sexes in the Origin of Dog Breeds |
title_sort |
unequal contribution of sexes in the origin of dog breeds |
publisher |
Oxford University Press (OUP) |
publishDate |
2006 |
url |
http://dx.doi.org/10.1534/genetics.105.042358 https://academic.oup.com/genetics/article-pdf/172/2/1121/42068945/genetics1121.pdf |
genre |
Canis lupus gray wolf |
genre_facet |
Canis lupus gray wolf |
op_source |
Genetics volume 172, issue 2, page 1121-1128 ISSN 1943-2631 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1534/genetics.105.042358 |
container_title |
Genetics |
container_volume |
172 |
container_issue |
2 |
container_start_page |
1121 |
op_container_end_page |
1128 |
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1797580995577249792 |