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α1-Antitrypsin polymorphism and systematics of eastern North American wolves

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We used data on the polymorphic status of a1-antitrypsin (a1AT) to study the relationship of Minnesota wolves to the gray wolf (Canis lupus), which was thought to have evolved in Eurasia, and to red wolves (Canis rufus) and coyotes (Canis latrans), which putatively evolved in North America. Recent evidence had indicated that Minnesota wolves might be more closely related to red wolves and coyotes. Samples from wild-caught Minnesota wolves and from captive wolves, at least some of which originated in Alaska and western Canada, were similarly polymorphic for a1AT, whereas coyote and red wolf samples were all monomorphic. Our findings, in conjunction with earlier results, are consistent with the Minnesota wolf being a gray wolf of Eurasian origin or possibly a hybrid between the gray wolf of Eurasian origin and the proposed North American wolf.

Nous avons utilisé des données sur le statut polymorphe de l'a1-antitrypsine (a1AT) pour définir les relations entre les loups du Minnesota et le loup gris (Canis lupus), que l'on croit avoir évolué en Eurasie, le loup roux (Canis rufus) et le coyote (Canis latrans), qui ont probablement évolué en Amérique du Nord. Des données récentes indiquent que les loups du Minnesota semblent plus apparentés aux loups roux et aux coyotes. Des échantillons provenant de loups capturés en nature et de loups en captivité, dont au moins quelques-uns sont originaires d'Alaska et de l'ouest du Canada, se sont avérés également polymorphes quant à l'a1TA , alors que les échantillons prélevés sur des loups roux et des coyotes étaient tous monomorphes. Nos résultats, combinés à ceux d'études antérieures, entérinent l'idée que le loup du Minnesota est un loup gris d'origine eurasienne, ou encore possiblement un hybride entre le loup gris d'origine eurasienne et le loup nord-américain proposé.[Traduit par la Rédaction]

Document Type: Research Article

Publication date: 2002-05-01

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  • Published since 1929, this monthly journal reports on primary research contributed by respected international scientists in the broad field of zoology, including behaviour, biochemistry and physiology, developmental biology, ecology, genetics, morphology and ultrastructure, parasitology and pathology, and systematics and evolution. It also invites experts to submit review articles on topics of current interest.
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