Faculty Opinions recommendation of A -defensin mutation causes black coat color in domestic dogs.

Author(s):  
Satish Keshav
Keyword(s):  
2005 ◽  
Vol 16 (4) ◽  
pp. 262-272 ◽  
Author(s):  
Tom G. Berryere ◽  
Julie A. Kerns ◽  
Gregory S. Barsh ◽  
Sheila M. Schmutz
Keyword(s):  

Genetics ◽  
2007 ◽  
Vol 176 (3) ◽  
pp. 1679-1689 ◽  
Author(s):  
Julie A. Kerns ◽  
Edward J. Cargill ◽  
Leigh Anne Clark ◽  
Sophie I. Candille ◽  
Tom G. Berryere ◽  
...  

Science ◽  
2007 ◽  
Vol 318 (5855) ◽  
pp. 1418-1423 ◽  
Author(s):  
S. I. Candille ◽  
C. B. Kaelin ◽  
B. M. Cattanach ◽  
B. Yu ◽  
D. A. Thompson ◽  
...  
Keyword(s):  

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3522 ◽  
Author(s):  
Bridgett vonHoldt ◽  
Zhenxin Fan ◽  
Diego Ortega-Del Vecchyo ◽  
Robert K. Wayne

Background Admixture can facilitate adaptation. For example, black wolves have obtained the variant causing black coat color through past hybridization with domestic dogs and have higher fitness than gray colored wolves. Another recent example of the transfer of adaptive variation between the two species has been suggested by the similarity between high altitude Tibetan mastiffs and wolves at the EPAS1 gene, a transcription factor induced in low oxygen environments. Methods Here, we investigate the directionality of admixture in EPAS1 between 28 reference highland gray wolves, 15 reference domestic dogs, and 21 putatively admixed highland wolves. This experimental design represents an expanded sample of Asian dogs and wolves from previous studies. Admixture was inferred using 17,709 publicly available SNP genotypes on canine chromosome 10. We additionally conducted a scan for positive selection in the highland dog genome. Results We find an excess of highland gray wolf ancestry at the EPAS1 locus in highland domestic dogs, suggesting adaptive introgression from wolves to dogs. The signal of admixture is limited in genomic extent to a small region on chromosome 10, indicating that it is the focus of selection in an oxygen-limited environment. Discussion Our results suggest that an adaptive variant of EPAS1 in highland wolves was transferred to highland dogs, carrying linked variants that potentially function in hypoxia response at high elevation. The intertwined history of dogs and wolves ensures a unique evolutionary dynamic where variants that have appeared in the history of either species can be tested for their effects on fitness under natural and artificial selection. Such coupled evolutionary histories may be key to the persistence of wild canines and their domesticated kin given the increasing anthropogenic modifications that characterize the future of both species.


Diversity ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 372
Author(s):  
Christopher B. Mowry ◽  
Lawrence A. Wilson ◽  
Bridgett M. vonHoldt

There is arguably no other North American species that better illustrates the complexities of the human-wildlife interface than the coyote. In this study, a melanistic coyote in metropolitan Atlanta, Georgia was exhibiting unusually bold behaviors that included encounters with humans, domestic dogs, and attempts to enter homes. After tracking this coyote (nicknamed Carmine) across a highly urbanized landscape with participatory science, including at least 80 publicly reported sightings, he was captured and relocated to a wildlife sanctuary. Genome-wide analyses revealed 92.8% coyote ancestry, 1.7% gray wolf ancestry, and 5.5% domestic dog ancestry. The dog alleles in Carmine’s genome were estimated to have been acquired by his ancestors 14–29 years ago. Despite his bold behavior, Carmine did not carry any mutations known to shape hypersociability in canines. He did, however, carry a single copy of the dominant mutation responsible for his melanistic coat color. This detailed study of Carmine dispels common assumptions about the reticent coyote personality and the origins of behavior. His unusual bold behavior created a higher level of human-coyote interaction. He now serves as a public ambassador for human-wildlife coexistence, urging the global community to reconsider mythologies about wildlife and promote coexistence with them in landscapes significantly altered by human activity in our rapidly changing world.


2020 ◽  
Author(s):  
Jagmeet S. Grewal ◽  
Tyler Gloe ◽  
Joseph Hegedus ◽  
Kathleen Bitterman ◽  
Brendon K. Billings ◽  
...  

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