Su Z H, Tominaga O, Ohama T, Kajiwara E, Ishikawa R, Okada T S, Nakamura K, Osawa S
Biohistory Research Hall, Osaka, Japan.
J Mol Evol. 1996 Dec;43(6):662-71. doi: 10.1007/BF02202114.
Molecular phylogenetic analyses using mitochondrial NADH dehydrogenase subunit 5 (ND5) gene sequences representing all 15 species and the majority of subspecies or races of the Ohomopterus ground beetles from all over the Japanese archipelago have uncovered a remarkable evolutionary history. Clustering of the species in the molecular phylogenetic tree is linked to their geographic distribution and does not correlate with morphological characters. Taxonomically the "same" species or the members belonging to the same species-group fall out in more than two different places on the ND5 tree. Evidence has been presented against a possible participation of ancestral polymorphism and random lineage sorting or of hybrid individuals for the observed distribution of mitochondrial DNA haplotypes. The most plausible explanation of our results is that parallel evolution took place in different lineages. Most notably, O. dehaanii, O. yaconinus, and O. japonicus in a lineage reveal almost identical morphology with those of the "same" species (or subspecies) but belonging to the phylogenetically remote lineages.
利用线粒体NADH脱氢酶亚基5（ND5）基因序列对来自日本列岛各地的所有15种及大多数亚种或变种的奥氏步甲进行的分子系统发育分析，揭示了一段显著的进化史。分子系统发育树中物种的聚类与它们的地理分布相关，而与形态特征无关。在分类学上，“相同”的物种或属于同一物种组的成员在ND5树上的两个以上不同位置出现。已经有证据表明，观察到的线粒体DNA单倍型分布不太可能是由祖先多态性、随机谱系分选或杂交个体导致的。对我们结果最合理的解释是，不同谱系中发生了平行进化。最值得注意的是，一个谱系中的德氏奥氏步甲、雅氏奥氏步甲和日本奥氏步甲与“相同”物种（或亚种）具有几乎相同的形态，但属于系统发育上较远的谱系。
