Masuda R, Lopez J V, Slattery J P, Yuhki N, O'Brien S J
Chromosome Research Unit, Faculty of Science, Hokkaido University, Kita-Ku, Japan.
Mol Phylogenet Evol. 1996 Dec;6(3):351-65. doi: 10.1006/mpev.1996.0085.
Molecular phylogeny of the cat family Felidae is derived using two mitochondrial genes, cytochrome b and 12S rRNA. Phylogenetic methods of weighted maximum parsimony and minimum evolution estimated by neighbor-joining are employed to reconstruct topologies among 20 extant felid species. Sequence analyses of 363 bp of cytochrome b and 376 bp of the 12S rRNA genes yielded average pair-wise similarity values between felids ranging from 94 to 99% and from 85 to 99%, respectively. Phylogenetic reconstruction supports more recent, intralineage associations but fails to completely resolve interlineage relationships. Both genes produce a monophyletic group of Felis species but vary in the placement of the pallas cat. The ocelot lineage represents an early divergence within the Felidae, with strong associations between ocelot and margay, Geoffroy's cat and kodkod, and pampas cat and tigrina. Implications of the relative recency of felid evolution, presence of ancestral polymorphisms, and influence of outgroups in placement of the topological root are discussed.
利用细胞色素b和12S rRNA这两个线粒体基因推导猫科动物的分子系统发育。采用加权最大简约法和邻接法估计的最小进化的系统发育方法来重建20种现存猫科动物之间的拓扑结构。对细胞色素b的363 bp和12S rRNA基因的376 bp进行序列分析，得出猫科动物之间的平均成对相似性值分别在94%至99%和85%至99%之间。系统发育重建支持更近的谱系内关联，但未能完全解决谱系间关系。两个基因都产生了一个单系的猫属物种群，但在兔狲的位置上有所不同。豹猫谱系代表了猫科动物内部的早期分化，豹猫与虎猫、乔氏猫与南美林猫、潘帕斯猫与小斑虎猫之间有很强的关联。讨论了猫科动物进化相对近期性、祖先多态性的存在以及外类群对拓扑根位置的影响。
