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古代DNA与现代mtDNA显示的中国家马的起源

本帖最后由 ranhaer 于 2009-7-20 20:24 编辑

Journal of Archaeological Science 36 (2009) 835–842

Ancient DNA provides new insights into the origin of the Chinese domestic horse
Dawei Cai , Zhuowei Tang , Lu Han , Camilla . Speller , Dongya Y. Yang , Xiaolin Mad, Jian’en Cao ,
Hong Zhu , Hui Zhou

Domestic horses played a pivotal role in ancient China, but their exact origin remains controversial. To investigate the origin of Chinese domestic horses, we analyzed mitochondrial DNA (mtDNA) from 35 horse remains, aged between 4000 and 2000 years, excavated from nine archaeological sites in northern China. The Chinese ancient horses exhibited high matrilineal diversity, falling into all the seven haplogroups (A–G) observed in modern horses. These results suggest that several maternal lines were introduced into the gene pool of Chinese horses in the past. Haplogroups A and F were more prevalent in ancient horses than the other haplogroups. Interestingly, only haplogroups A and F were present in the
samples older than 4000 years, while the more recent horses (between 2000 and 3000 years BP) fell into all seven haplogroups. Comparison with DNA data of present-day horses suggests that haplogroup F is like to be an ancient haplogroup of East Asian origin. These analyses also suggest that the origin of Chinese domestic horses is complex, and external mtDNA input occurred after initial domestication. Our
results indicate that the Chinese ancient horses are more related to the modern Mongolian horses. Lastly, our results cannot support the previous hypothesis that early Chinese domestic horses were derived from the Przewalski horse.

发表:http://www.brsbox.com/filebox/do ... b5994cb46277980cd21
古代DNA显示的中国家马的起源.JPG
自问,于民于家何用?
哦 是说中国马起源于蒙古马
里海-黑海草原的马,拥有最复杂的多样性。
傻逼太多,懒得理会。
“人类学”论坛可以申请升级和延拓了。:lol
測的高變區吧。各個單倍群只差了一兩個鹼基。等全序列出來,估計這棵樹和單被群的劃分能變不少。
没这么讲
哦 是说中国马起源于蒙古马
chrysang 发表于 2009-7-20 20:28
看过另一种说法 :
Erich Isaac认为蒙古马是由中亚塔尔潘马(tarpan)而来,
而分布于东亚或蒙古草原的普氏野马(Equus Przewalskii)与家马染色体数目不同,是一种不可驯化的动物。家马染色体数为2n=64,而普氏野马为2n=66,在生物学上不是一个物种。
古代地质,气候,植被,家畜,疾病等直接决定着当时人群的生存环境,因此也是研究古代人群起源、交流的重要对象。
自问,于民于家何用?
研究与人类生活关系密切的生物可以是分子人类学的一个重要方面,比如幽门螺旋杆菌的系统树和人类起源的关系,东亚家猪的起源和远东新石器文化的起源迁徙的问题等等。某些人的知识值得升级和延拓:lol
再看了一下这篇文章,伊比利亚起源的D类型扩散中中国腹地,而东亚起源的F世系也扩散到了欧洲。可见中亚的双向交流作用确实是很大。
自问,于民于家何用?
原来普氏野马的染色体数量和今天家马不同.....

问下欧亚大陆两端基因交流是由于人群直接迁徙还是辗转通婚而交流的?
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