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Introgression and the fate of domesticated genes in a wild mammal population

Overview of attention for article published in Molecular Ecology, June 2013
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (88th percentile)
  • Good Attention Score compared to outputs of the same age and source (78th percentile)

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1 blog
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117 Mendeley
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Title
Introgression and the fate of domesticated genes in a wild mammal population
Published in
Molecular Ecology, June 2013
DOI 10.1111/mec.12378
Pubmed ID
Authors

Philine G D Feulner, Jacob Gratten, James W Kijas, Peter M Visscher, Josephine M Pemberton, Jon Slate

Abstract

When domesticated species are not reproductively isolated from their wild relatives, the opportunity arises for artificially selected variants to be re-introduced into the wild. However, the evolutionary consequences of introgression of domesticated genes back into the wild are poorly understood. By combining high-throughput genotyping with 25 years of long-term ecological field data, we describe the occurrence and consequences of admixture between a primitive sheep breed, the free-living Soay sheep of St Kilda, and more modern breeds. Utilizing data from a 50 K ovine SNP chip, together with forward simulations of demographic scenarios, we show that admixture occurred between Soay sheep and a more modern breed, consistent with historical accounts, approximately 150 years ago. Haplotype-sharing analyses with other breeds revealed that polymorphisms in coat colour and pattern in Soay sheep arose as a result of introgression of genetic variants favoured by artificial selection. Because the haplotypes carrying the causative mutations are known to be under natural selection in free-living Soay sheep, the admixture event created an opportunity to observe the outcome of a 'natural laboratory' experiment where ancestral and domesticated genes competed with each other. The haplotype carrying the domesticated light coat colour allele was favoured by natural selection, while the haplotype associated with the domesticated self coat pattern allele was associated with decreased survival. Therefore, we demonstrate that introgression of domesticated alleles into wild populations can provide a novel source of variation capable of generating rapid evolutionary changes.

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X Demographics

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 117 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 3 3%
Germany 2 2%
Norway 1 <1%
Sweden 1 <1%
Brazil 1 <1%
United Kingdom 1 <1%
Finland 1 <1%
Unknown 107 91%

Demographic breakdown

Readers by professional status Count As %
Researcher 34 29%
Student > Ph. D. Student 27 23%
Student > Master 14 12%
Student > Bachelor 8 7%
Student > Postgraduate 6 5%
Other 18 15%
Unknown 10 9%
Readers by discipline Count As %
Agricultural and Biological Sciences 76 65%
Biochemistry, Genetics and Molecular Biology 16 14%
Environmental Science 6 5%
Earth and Planetary Sciences 2 2%
Veterinary Science and Veterinary Medicine 1 <1%
Other 3 3%
Unknown 13 11%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 12. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 August 2013.
All research outputs
#2,883,845
of 24,549,201 outputs
Outputs from Molecular Ecology
#1,559
of 6,577 outputs
Outputs of similar age
#23,909
of 201,215 outputs
Outputs of similar age from Molecular Ecology
#15
of 69 outputs
Altmetric has tracked 24,549,201 research outputs across all sources so far. Compared to these this one has done well and is in the 88th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 6,577 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 11.5. This one has done well, scoring higher than 76% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 201,215 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 88% of its contemporaries.
We're also able to compare this research output to 69 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 78% of its contemporaries.