INDEPENDENT ORIGINS OF NEW-ZEALAND MOAS AND KIWIS
INDEPENDENT ORIGINS OF NEW-ZEALAND MOAS AND KIWIS
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DOI：
10.1073/pnas.89.18.8741
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发表时间：
1992-09-15
影响因子：
11.1
通讯作者：
PAABO, S
中科院分区：
文献类型：
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作者：
COOPER, A;MOURERCHAUVIRE, C;PAABO, S
在更新世，新西兰存在着两类不会飞的扁平鸟：几维鸟和MOAS。后者现已灭绝，但以前包括11个物种。我们已经从四种MOAS以及其他八种平底鸟和一只斑羚的骨骼和软组织中对线粒体12S rRNA基因进行了大约400个碱基对的酶扩增和测序。与预期相反，系统发育分析表明，新西兰人与澳大利亚和非洲的关系比与MOAS的关系更密切。因此，新西兰可能曾两次被扁平鸟的祖先殖民。
Two groups of flightless ratite birds existed in New Zealand during the Pleistocene: the kiwis and the moas. The latter are now extinct but formerly included 11 species. We have enzymatically amplified and sequenced approximately 400 base pairs of the mitochondrial 12S rRNA gene from bones and soft tissue remains of four species of moas as well as eight other species of ratite birds and a tinamou. Contrary to expectation, the phylogenetic analysis shows that the kiwis are more closely related to Australian and African ratites than to the moas. Thus, New Zealand probably was colonized twice by ancestors of ratite birds.