Molecular phylogeny of the extinct cave lion Panthera leo spelaea
Molecular phylogeny of the extinct cave lion Panthera leo spelaea
复制标题
DOI：
10.1016/j.ympev.2003.07.020
复制
发表时间：
2004-03-01
影响因子：
4.1
通讯作者：
Alt, KW
中科院分区：
文献类型：
--
作者：
Burger, J;Rosendahl, W;Alt, KW
为了重建已灭绝的洞狮（Panthera leo spelaea）的系统发育位置，我们从两个更新世洞狮DNA样本（47和32 ky B. P.）的线粒体细胞色素B基因的1 kb序列。系统发育分析表明，古老的序列形成了一个分支，与现存的非洲和亚洲狮子关系最密切;同时，洞穴狮子似乎与它们的生活亲属非常不同。我们的数据显示，这些洞狮序列代表了从非洲和亚洲的狮子中分离出来的谱系，因为它们在大约600 ky B. P.因为在我们的现存种群样本中没有发现它们。这里展示的洞狮谱系在其他大陆上没有线粒体后代的情况下灭绝了。洞穴狮子和现代狮子之间的细胞色素B基因的高度序列差异是显著的。(C)2003爱思唯尔公司All rights reserved.
To reconstruct the phylogenetic position of the extinct cave lion (Panthera leo spelaea), we sequenced 1 kb of the mitochondrial cytochrome b gene from two Pleistocene cave lion DNA samples (47 and 32 ky B.P.). Phylogenetic analysis shows that the ancient sequences form a clade that is most closely related to the extant lions from Africa and Asia; at the same time, cave lions appear to be highly distinct from their living relatives. Our data show that these cave lion sequences represent lineages that were isolated from lions in Africa and Asia since their dispersal over Europe about 600 ky B.P., as they are not found among our sample of extant populations. The cave lion lineages presented here went extinct without mitochondrial descendants on other continents. The high sequence divergence in the cytochrome b gene between cave and modern lions is notable. (C) 2003 Elsevier Inc. All rights reserved.