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1 February 2007 Phylogenetic Relationships Within the Genus Jesogammarus (Crustacea, Amphipoda, Anisogammaridae) Deduced from Mitochondrial COI and 12S Sequences
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Abstract

The genus Jesogammarus contains 16 species in two subgenera, Jesogammarus and Annanogammarus. To examine relationships among species in the genus, a molecular phylogenetic study including eight species of the former subgenus and four of the latter was conducted using partial DNA sequences of the mitochondrial COI and 12S rRNA genes. MP, NJ, and ML trees based on the combined COI and 12S data indicated monophyly of the subgenus Annanogammarus, though the monophyly of Jesogammarus was left unresolved. Consistent with few morphological differences, Jesogammarus (A.) naritai and J. (A.) suwaensis showed low genetic differentiation and did not show reciprocal monophyly, which suggests a close affinity of these taxa.

Ko Tomikawa, Norio Kobayashi, Hiroshi Morino, Zhong-E. Hou, and Shunsuke F. Mawatari "Phylogenetic Relationships Within the Genus Jesogammarus (Crustacea, Amphipoda, Anisogammaridae) Deduced from Mitochondrial COI and 12S Sequences," Zoological Science 24(2), 173-180, (1 February 2007). https://doi.org/10.2108/zsj.24.173
Received: 10 April 2006; Accepted: 1 October 2006; Published: 1 February 2007
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