fjnj 发表于 2018-2-23 07:29

古马DNA证明BOTAI不是现代马的起源

Ancient DNA upends the horse family tree
http://www.sciencemag.org/news/2018/02/ancient-dna-upends-horse-family-tree

lindberg 发表于 2018-2-23 12:41

“that domestication could have been a process with many phases, experiments, failures, and successes,”

肯定的,都是这样的。

lindberg 发表于 2018-2-23 12:50

For one, Przewalski’s horses were in the same part of the tree as the Botai horses. From their relationship, it was clear that these “wild” horses were escaped Botai horses, the team reports today in Science. “We have now found that there are no truly wild horses left” anywhere in the world, Outram says.
看来普家的野马和很多进入人类驯化谱的动物一样,中途被放弃了。

lindberg 发表于 2018-2-23 14:35

Another surprise was that all the other horses were on a separate branch of the tree, suggesting they were not Botai descendents as many have long thought.
真能够确认也没啥奇怪的。

Botai是家马驯养和使用成熟化的一个重要阶段,这就足够了。

乃曼 发表于 2018-2-23 18:22

本帖最后由 乃曼 于 2018-2-23 18:24 编辑

那么老问题又来了:现代马最早由哪些人群驯服?来自哪种野马?

lindberg 发表于 2018-2-23 19:29

本帖最后由 lindberg 于 2018-2-23 19:39 编辑

“We are now back to the intriguing question—who were the ancestors of our modern horses, and who were the peoples that were responsible for their early husbandry?” says Emmeline Hill, an equine scientist at University College Dublin who was not involved with the study.

专家也有此问!!!

不过我觉得可能很难有答案!马的遗传多样性损失很大。

最早开始被人驯服骑乘的野马,最早开始饲养吃肉的马,最早开始挤奶的马,最早开始被人用成熟方法饲养使用的家马,不一定源自同一个种群,也不一定源自同一区域,还不一定有血统遗存至今。

还有,就算是这篇文章的研究方法和结论,也不一定是没有争议的。

双头鹰 发表于 2018-2-24 14:30

Botai人驯养的马后来又野化成了普氏野马,挺有意思的,真正的家马祖先又成了个迷,普氏野马好像是比家马要对一对染色体的

tmtm12 发表于 2018-3-14 14:39

那家马的起源在哪里呢?可以看到的考古学材料最早指向Botai遗址啊,估计还是在哈萨克草原上。
页: [1]
查看完整版本: 古马DNA证明BOTAI不是现代马的起源