lunedì 29 ottobre 2007

La distribuzione delle varie sottospecie di gatto selvatico


Image: Science

Qui una cartina sulla distribuzione delle sottospecie di gatto selvatico che ho reperito in rete e contenuta in un articolo dal titolo "DNA shows domestic cat had origins in Near East". Notare l'areale originario e quello attuale del gatto selvatico europeo.
Fonte: http://www.newscientist.com/data/images/ns/cms/dn12153/dn12153-1_567.jpg

Interessanti informazioni sull'origine del gatto domestico sono sintetizzate nell'articolo:
The Near Eastern Origin of Cat Domestication
Driscoll et al.
Science 27 July 2007: 519-523

Riporto l'abstract:

The world's domestic cats carry patterns of sequence variation in their genome that reflect a history of domestication and breed development. A genetic assessment of 979 domestic cats and their wild progenitors—Felis silvestris silvestris (European wildcat), F. s. lybica (Near Eastern wildcat), F. s. ornata (central Asian wildcat), F. s. cafra (southern African wildcat), and F. s. bieti (Chinese desert cat)—indicated that each wild group represents a distinctive subspecies of Felis silvestris. Further analysis revealed that cats were domesticated in the Near East, probably coincident with agricultural village development in the Fertile Crescent. Domestic cats derive from at least five founders from across this region, whose descendants were transported across the world by human assistance.

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