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随机繁殖的猫的遗传学支持猫驯化的摇篮在近东。

Genetics of randomly bred cats support the cradle of cat domestication being in the Near East.

机构信息

Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA.

Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA, 95616, USA.

出版信息

Heredity (Edinb). 2022 Dec;129(6):346-355. doi: 10.1038/s41437-022-00568-4. Epub 2022 Nov 1.

Abstract

Cat domestication likely initiated as a symbiotic relationship between wildcats (Felis silvestris subspecies) and the peoples of developing agrarian societies in the Fertile Crescent. As humans transitioned from hunter-gatherers to farmers ~12,000 years ago, bold wildcats likely capitalized on increased prey density (i.e., rodents). Humans benefited from the cats' predation on these vermin. To refine the site(s) of cat domestication, over 1000 random-bred cats of primarily Eurasian descent were genotyped for single-nucleotide variants and short tandem repeats. The overall cat population structure suggested a single worldwide population with significant isolation by the distance of peripheral subpopulations. The cat population heterozygosity decreased as genetic distance from the proposed cat progenitor's (F.s. lybica) natural habitat increased. Domestic cat origins are focused in the eastern Mediterranean Basin, spreading to nearby islands, and southernly via the Levantine coast into the Nile Valley. Cat population diversity supports the migration patterns of humans and other symbiotic species.

摘要

猫的驯化很可能是在新月沃地的野生动物(野生亚种)和发展中的农业社会的人类之间的共生关系中开始的。大约 12000 年前,人类从狩猎采集者转变为农民,大胆的野猫可能利用了增加的猎物密度(即啮齿动物)。人类从猫对这些害虫的捕食中受益。为了完善猫的驯化地点,对 1000 多只主要来自欧亚大陆的随机繁殖的猫进行了单核苷酸变异和短串联重复的基因分型。总体而言,猫的种群结构表明,在世界范围内存在一个单一的种群,外围亚种群的距离隔离程度很大。随着与提议的猫祖先(F.s.lybica)自然栖息地的遗传距离的增加,猫的种群杂合性降低。家猫的起源集中在地中海东部盆地,传播到附近的岛屿,并通过黎凡特海岸向南传播到尼罗河谷。猫种群的多样性支持了人类和其他共生物种的迁徙模式。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a5/9708682/a6e13b594256/41437_2022_568_Fig1_HTML.jpg

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