Polydactyly in Arctic foxes (Vulpes lagopus)

Seven Arctic fox puppies were found to have an extra claw (resembling a canine dewclaw) on their thoracic limb. These individuals came from 2 litters born of 2 different females. The "dewclaw" comprised a claw loosely connected with the limb by soft tissue, and it had the third phalanx (PI...

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Bibliographic Details
Main Authors: GUGOLEK, ANDRZEJ, STRYCHALSKI, JANUSZ, KONSTANTYNOWICZ, MALGORZATA
Format: Text
Language:unknown
Published: TÜBİTAK Academic Journals 2011
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Online Access:https://journals.tubitak.gov.tr/veterinary/vol35/iss4/9
https://journals.tubitak.gov.tr/cgi/viewcontent.cgi?article=2224&context=veterinary
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Summary:Seven Arctic fox puppies were found to have an extra claw (resembling a canine dewclaw) on their thoracic limb. These individuals came from 2 litters born of 2 different females. The "dewclaw" comprised a claw loosely connected with the limb by soft tissue, and it had the third phalanx (PIII) and a vestigial phalanx. Our results show that the presence of an extra claw on one or both hands in some Arctic fox puppies may, but does not have to, be a dominant trait. The differences between the 2 analyzed litters support the hypothesis that the mode of inheritance of the investigated trait in Arctic foxes could be more complex.