Taxonomic relationship between two Gammarus species, G. nipponensis and G. sobaegensis (Amphipoda: Gammaridae), with description of a new species

被引:7
作者
Tomikawa, Ko [1 ]
Soh, Ho Young [2 ]
Kobayashi, Norio [3 ]
Yamaguchi, Aika [4 ]
机构
[1] Hiroshima Univ, Grad Sch Educ, Dept Sci Educ, Higashihiroshima, Hiroshima 7398524, Japan
[2] Chonnam Natl Univ, Fac Marine Technol, Yeosu 550749, Jeonnam, South Korea
[3] Saitama Prefectural Univ, Sch Hlth & Social Serv, Ctr Univ Wide Educ, Saitama 3438540, Japan
[4] Kobe Univ, Res Ctr Inland Seas, Kobe, Hyogo 6578501, Japan
关键词
Gammarus; Amphipoda; new species; Taxonomy; phylogeny; Japan; Korea; ASIA CRUSTACEA-AMPHIPODA; ADJACENT REGIONS; NORTH-AFRICA; MITOCHONDRIAL; EUROPE; JAPAN; SEA;
D O I
10.11646/zootaxa.3873.5.1
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
To assess the taxonomic relationship between G. nipponensis and G. sobaegensis, morphological features and molecular phylogenetic relationships using the nuclear 28S rRNA and the mitochondrial COI genes were examined. Detailed morphological observations revealed that G. nipponensis and G. sobaegensis were clearly distinguishable. In addition to the morphological differences, these two species were genetically diverged. In the course of this study, an undescribed species was found from Tsushima and Iki Islands and described here as G. mukudai. In the molecular phylogenetic analyses, monophyletic relationships of G. nipponensis, G. sobaegensis, and G. mukudai were shown but relationships among three species were unclear due to low statistical supports. Phylogeography of G. nipponensis, G. sobaegensis, and G. mukudai were discussed.
引用
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页码:451 / 476
页数:26
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