Systematic Study on the Chaenogobius Species (Family Gobiidae) by Analysis of Allozyme Polymorphisms

概要

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Isozyme polymorphisms of eight Chaenogobius species (Family Gobiidae) were studied in order to understand the phylogenetic relationships between them. Fifteen loci from ten enzymes and sarcoplasmic protein were detected by horizontal starch gel electrophoresis. The phylogenetic tree obtained from genetic distances between species essentially agreed with morphological and ecological studies previously reported. In addition, two new features were revealed. First, Nei's genetic distance between C. laevis from Saitama and that from Akita suggested that they are differentiate from each other on the species level. Second, the undescribed taxon, C. sp., from Lake Shinji was closely related to C. laevis from Akita and the genetic distance between them was 0.114. The smallest genetic distance between distinct species of Chaenogobius was 0.103 between C. urotaenia and C. isaza obtained in this study. This shows the possibility that C. sp. is the different species of C. laevis, from Akita.
社団法人日本動物学会の論文
1994-06-15