Dewclaws in wolves as evidence of admixed ancestry with dogs

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Dewclaws in wolves as evidence of admixed ancestry with dogs

Post by Blightwolf » Tue Jun 01, 2010 2:09 am

An older article (done in the 21st Century, however) but I've never seen this posted in WQ before, so...
DEWCLAWS IN WOLVES AS EVIDENCE OF ADMIXED ANCESTRY WITH DOGS

Authors: Ciucci P.; Lucchini V.; Boitani L.; Randi E.

Source: Canadian Journal of Zoology, Volume 81, Number 12, 1 December 2003

Publisher: NRC Research Press

Vestigial first toes (dewclaws) on the hind legs are common in large dog (Canis lupus familiaris) breeds but are absent in wild canids, including wolves (Canis lupus). Based on observational criteria, dewclaws in wolves have been generally regarded as a clue of hybridization with dogs, although this was not substantiated by molecular evidence. By means of population assignment and genetic admixture analysis, we investigated individual genotypes of three dewclawed wolves from Tuscany (central Italy, 1993 – 2001). Based on 18 microsatellite markers, dewclawed wolves were not uniquely assigned to the Italian wolf population but appeared to be second or later generation backcrosses of wolf–dog hybrids. Alleles uniquely shared with dogs, and mitochondrial DNA and Y haplotypes identical to those of Italian wolves, further supported their admixed ancestry. Although patterns of dewclaw inheritance in wolf–dog hybrids and backcrosses have not been ascertained, we conclude that dewclaws in wolves, when present, are a clue of admixed ancestry, probably originating in areas where large dog breeds are involved in cross-matings. Other "atypical" morphological traits (e.g., white nails, atypical color patterns or body proportions, dental anomalies) as well might be reliable clues of admixed ancestry, and they deserve careful monitoring and molecular investigation.
Source: http://93.91.26.29/content/nrc/cjz/2003 ... upuq.alice
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Re: Dewclaws in wolves as evidence of admixed ancestry with dogs

Post by SolitaryHowl » Tue Jun 01, 2010 3:38 am

Interesting. Thanks for the article.
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Re: Dewclaws in wolves as evidence of admixed ancestry with dogs

Post by Alpha Female » Tue Jun 01, 2010 4:06 pm

Very interesting, thanks for sharing.
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Re: Dewclaws in wolves as evidence of admixed ancestry with dogs

Post by Blightwolf » Wed Jun 02, 2010 1:52 am

I will see if there are any more recent studies done about this or if this matter has been further explored. Personally, I find this information really interesting.
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Re: Dewclaws in wolves as evidence of admixed ancestry with dogs

Post by xX---Sweetfire---Xx » Mon Jun 07, 2010 10:58 am

Cool! How you can get such information for a dewclaw...though there was probably othe indicators too.
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Re: Dewclaws in wolves as evidence of admixed ancestry with dogs

Post by LunaLynn » Mon Jun 07, 2010 8:36 pm

Haha thats pretty cool and interesting. Thanks for finding that. :mrgreen:
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Re: Dewclaws in wolves as evidence of admixed ancestry with dogs

Post by paperpaws » Wed Jun 16, 2010 8:49 am

That is quite interesting, thanks for the share.

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Re: Dewclaws in wolves as evidence of admixed ancestry with dogs

Post by jaguartail » Wed Jun 16, 2010 11:47 pm

Quite interesting,thanks for posting it.

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