Investigating genetic introgression from farmed red foxes into the wild population in Newfoundland, Canada

Lounsberry, Zachary T.; Quinn, Cate B.; Statham, Mark J.; Angulo, Carla L.; Kalani, Tatyana J.; Tiller, Eugene; Sacks, Benjamin N.

doi:10.1007/s10592-016-0914-6

Cited by 15 publications

(17 citation statements)

References 47 publications

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“…As in the studies by Lounsberry et al (2016), our own results indicate that the populations of farm foxes and animals coexisting in natural conditions in Poland clearly differ genetically. This may prove a good organization of fur farming in Poland nowadays and appropriate isolation of farm individuals from free-living animals.…”

Section: Discussionsupporting

confidence: 80%

High genetic distinctiveness of wild and farm fox (Vulpes vulpes L.)populations in Poland: evidence from mitochondrial DNA analysis

Horecka¹,

Kasperek²,

Jeżewska-Witkowska³

et al. 2017

Turk J Zool

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In Poland, the number of wild red foxes (Vulpes vulpes L.) and the size of the fur-farming industry are growing. There is concern that the gene pool of the wild foxes is being infiltrated by that of the farm animals. We analyzed three groups-Polish farm foxes and wild-living animals from Poland and North America-to investigate the gene flow or introgression between farm and wild red foxes. We took into account the breeding history of the species and the evolutionary relationships between fox populations on different continents. We compared the haplotypes based on the concatenated nucleotide sequences of MT-CO1 (mitochondrially encoded cytochrome c oxidase I) and MT-ATP6 (mitochondrially encoded ATP synthase 6) genes. It was confirmed that investigated fur-farm animals originated from wild individuals living in North America. We found a haplotype common to wild foxes from Europe (Poland) and wild North American individuals. The common haplotype shared by both investigated wild-living groups could indicate some degree of introgression between Polish farm and wild-living populations. Haplotypes characteristic of North American foxes were transferred to the Polish wild population and have been established. However, the pairwise Φ ST values make it clear that North American wild and Polish wild foxes are genetically distinct evolutionary groups.

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Section: Discussionsupporting

confidence: 80%

High genetic distinctiveness of wild and farm fox (Vulpes vulpes L.)populations in Poland: evidence from mitochondrial DNA analysis

Horecka¹,

Kasperek²,

Jeżewska-Witkowska³

et al. 2017

Turk J Zool

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“…Table shows six concatenated haplotypes found only in farm foxes along with 19 concatenated haplotypes found only in wild foxes. All six concatenated haplotypes or cytochrome b and D‐loop fragments separately (A, E, F, 9, 17, 67, 86) observed in farm foxes were previously reported to be of North American origin (Aubry et al., ; Lounsberry et al., ; Perrine et al., ; Sacks, Brazeal, & Lewis, ). The most common concatenated haplotype found in the farm foxes (E‐86, n = 19) was previously found in farm foxes (Statham et al., , ) and in a population from the eastern U.S. (Kasprowicz et al., ).…”

Section: Resultsmentioning

confidence: 86%

“…They were also trimmed to cover 354-bp and 343bp, homologous to those used in other studies (e.g. Aubry et al, 2009;Lounsberry et al, 2017).…”

Section: Mtdna Amplificationmentioning

confidence: 99%

“…A few other phylogenetic and phylogeographic studies of local red fox populations (Akins, Aubry, & Sacks, 2018;Merson et al, 2017;Sacks et al, 2016;Statham et al, 2011Statham et al, , 2012, may also provide indirect support for the hypothesis that the source of the genetic variation in red foxes kept on Polish fur farms lies in North America. In particular, studies that dealt with genetic introgression from farm foxes into wild ones provided valuable information (Horecka et al, 2017;Kasprowicz et al, 2016;Lounsberry et al, 2017).…”

Section: Central_canada_f-275mentioning

confidence: 99%

“…As a result, gene flow from North American fur farms to newly established red fox farms on other continents took place. This is the most likely reason why farm-bred red foxes have a common ancestral composition (Lounsberry et al, 2017;Statham et al, 2011Statham et al, , 2012. A good example demonstrating that farm-bred red foxes all over the world originate from their North American ancestors are the results of the study by Statham et al (2011).…”

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confidence: 99%

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Admixture analyses and phylogeographic relationships reveal complete genetic distinctiveness of Polish farm and wild red foxes (Vulpes vulpes) and the North American origin of farm‐bred individuals

Zatoń-Dobrowolska

Mucha

Morrice

et al. 2019

Animal Science Journal

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A number of studies showed that many mtDNA haplotypes were shared among contemporary farm red foxes bred on different continents and the historical wild red foxes of North American origin. Therefore, in this study, the population genetic structure and phylogeographic relationships of Polish red foxes kept on fur farms and their wild conspecifics were investigated to assess the ancestry of the farm red foxes in Poland. A total of 330 tissue samples (200 from farm foxes and 130 from wild foxes) were used for the genetic analyses. Thirty microsatellite loci and two regions of mtDNA were used to assess the level of admixture between farm‐ and wild red foxes, to construct haplotype networks and create a phylogenetic tree. The genetic structure analysis clearly indicated two genetic clusters as being the most probable number of genetically distinct populations. The fixation index revealed a significant genetic distance between the farm‐ and wild red fox populations (FST = 0.27, p < 0.05). Haplotype networks based on frequencies showing relationships between concatenated haplotypes of Polish farm‐ and wild red foxes and the constructed phylogenetic tree clearly indicated two genetically distinct groups. The results of this study provide strong evidence confirming the North American origin of red foxes bred on Polish farms and the genetic distinctiveness of both studied populations.

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Genetic integrity, diversity, and population structure of the Cascade red fox

2018

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Investigating genetic introgression from farmed red foxes into the wild population in Newfoundland, Canada

Cited by 15 publications

References 47 publications

High genetic distinctiveness of wild and farm fox (Vulpes vulpes L.)populations in Poland: evidence from mitochondrial DNA analysis

High genetic distinctiveness of wild and farm fox (Vulpes vulpes L.)populations in Poland: evidence from mitochondrial DNA analysis

Admixture analyses and phylogeographic relationships reveal complete genetic distinctiveness of Polish farm and wild red foxes (Vulpes vulpes) and the North American origin of farm‐bred individuals

Genetic integrity, diversity, and population structure of the Cascade red fox

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