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Multiple ancestries and shared gene flow among modern livestock guarding dogs

Coutinho-Lima, Diogo ; Dreger, Dayna L ; Doadrio, Ignacio ; Parker, Heidi G ; Ghanavi, Hamid Reza LU orcid ; Frantz, Laurent ; Larson, Greger ; Ostrander, Elaine A and Godinho, Raquel (2024) In iScience 27(8).
Abstract
Livestock guarding dogs (LGDs) have been used to protect livestock for millennia. While previous works suggested a single origin of modern LGDs, the degree and source of shared ancestry have not been tested. To address this, we generated genome-wide SNP data from 304 LGDs and combined it with public genomic data from 2,183 modern and 22 ancient dogs. Our findings reveal shared ancestry and extensive gene flow among modern LGD breeds which we attribute to historical livestock migrations. Additionally, admixture between LGDs and free-ranging dogs argues against reproductive isolation as a core mechanism for maintaining the specialized skills of LGDs. Finally, we identify two lineages within modern LGDs and uncover multiple ancestries tracing... (More)
Livestock guarding dogs (LGDs) have been used to protect livestock for millennia. While previous works suggested a single origin of modern LGDs, the degree and source of shared ancestry have not been tested. To address this, we generated genome-wide SNP data from 304 LGDs and combined it with public genomic data from 2,183 modern and 22 ancient dogs. Our findings reveal shared ancestry and extensive gene flow among modern LGD breeds which we attribute to historical livestock migrations. Additionally, admixture between LGDs and free-ranging dogs argues against reproductive isolation as a core mechanism for maintaining the specialized skills of LGDs. Finally, we identify two lineages within modern LGDs and uncover multiple ancestries tracing back to distinct Eurasian ancient dogs, concordant with the absence of a single ancestor. Overall, our work explores the complex evolutionary history of LGDs, offering valuable insights into how human and livestock co-migrations shaped this functional group. (Less)
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author
; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
iScience
volume
27
issue
8
article number
110396
pages
13 pages
publisher
Elsevier
external identifiers
  • scopus:85199481719
ISSN
2589-0042
DOI
10.1016/j.isci.2024.110396
language
English
LU publication?
yes
id
7949bd0a-1d8d-48d0-9fae-a9536f555b9a
date added to LUP
2024-07-27 00:26:49
date last changed
2024-08-14 15:46:39
@article{7949bd0a-1d8d-48d0-9fae-a9536f555b9a,
  abstract     = {{Livestock guarding dogs (LGDs) have been used to protect livestock for millennia. While previous works suggested a single origin of modern LGDs, the degree and source of shared ancestry have not been tested. To address this, we generated genome-wide SNP data from 304 LGDs and combined it with public genomic data from 2,183 modern and 22 ancient dogs. Our findings reveal shared ancestry and extensive gene flow among modern LGD breeds which we attribute to historical livestock migrations. Additionally, admixture between LGDs and free-ranging dogs argues against reproductive isolation as a core mechanism for maintaining the specialized skills of LGDs. Finally, we identify two lineages within modern LGDs and uncover multiple ancestries tracing back to distinct Eurasian ancient dogs, concordant with the absence of a single ancestor. Overall, our work explores the complex evolutionary history of LGDs, offering valuable insights into how human and livestock co-migrations shaped this functional group.}},
  author       = {{Coutinho-Lima, Diogo and Dreger, Dayna L and Doadrio, Ignacio and Parker, Heidi G and Ghanavi, Hamid Reza and Frantz, Laurent and Larson, Greger and Ostrander, Elaine A and Godinho, Raquel}},
  issn         = {{2589-0042}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{8}},
  publisher    = {{Elsevier}},
  series       = {{iScience}},
  title        = {{Multiple ancestries and shared gene flow among modern livestock guarding dogs}},
  url          = {{http://dx.doi.org/10.1016/j.isci.2024.110396}},
  doi          = {{10.1016/j.isci.2024.110396}},
  volume       = {{27}},
  year         = {{2024}},
}