Emerson B C, Oromí P, Hewitt G M
School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom.
Mol Phylogenet Evol. 1999 Oct;13(1):149-58. doi: 10.1006/mpev.1999.0644.
The genus Calathus Bonelli comprises 24 species on the Canary Islands. Sequences of 927 and 687 bp of the mitochondrial cytochrome oxidase I and II genes, respectively, as well as the intervening tRNA leu gene in 21 of the 24 species, have identified three genetically divergent and unequivocally monophyletic groupings. A phylogeographic analysis is presented for the major monophyletic group comprising all the species of Gran Canaria, La Gomera, and El Hierro, and two Tenerifean species. A distance-based phylogenetic analysis and maximum parsimony analysis have clearly shown that this clade is composed of four distinct lineages. DNA sequence data suggest a recent origin for this clade and that lineages have not evolved at the same rate. Compared with diversification patterns observed in other Coleoptera on the Canary Islands, diversification has been recent relative to the time of colonization within the islands of Gran Canaria and La Gomera. Calathus diversification on La Gomera has been greater than on Gran Canaria. The influences of geological and ecological history are discussed in relation to Calathus diversification.
卡拉图斯·博内利属在加那利群岛包含24个物种。分别对24个物种中的21个物种的线粒体细胞色素氧化酶I基因的927个碱基对序列、细胞色素氧化酶II基因的687个碱基对序列以及其间的tRNA亮氨酸基因进行分析，确定了三个基因上有差异且明确为单系的类群。本文对一个主要的单系类群进行了系统地理学分析，该类群包括大加那利岛、拉戈梅拉岛和耶罗岛的所有物种以及两个特内里费岛的物种。基于距离的系统发育分析和最大简约法分析清楚地表明，这个进化枝由四个不同的谱系组成。DNA序列数据表明这个进化枝起源较近，且各谱系的进化速度不同。与在加那利群岛其他鞘翅目昆虫中观察到的多样化模式相比，相对于大加那利岛和拉戈梅拉岛的殖民时间，多样化是最近才出现的。拉戈梅拉岛上卡拉图斯的多样化程度大于大加那利岛。本文还讨论了地质和生态历史对卡拉图斯多样化的影响。
