Satomi Kamimura

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The phylogeography of the endangered tideland snail Batillaria zonalis in the Japanese and Ryukyu Islands was analyzed on the basis of nucleotide sequences of a mitochondrial gene for cytochrome oxidase c subunit I (COI). Extremely low genetic diversity was found in populations at both the northern and southern boundaries of the geographic distribution of(More)
Phylogenetic relationships between two sibling species of Japanese tideland snails, namely, Batillaria multiformis from the Japanese Islands and B. flectosiphonata from the Ryukyu Islands, were analyzed on the basis of the nucleotide sequences of the mitochondrial gene for cytochrome oxidase I. Populations of B. multiformis were genetically distinct from(More)
Batillaria flectosiphonata is distributed in the Ryukyu Islands, south-western Japan, and shows genetic differentiation among island groups. This species is vulnerable to environmental fluctuations because the connectivity among the groups is low. Therefore, the conservation of each group is necessary to maintain their genetic diversity. Using(More)
Intertidal snails of the genus Batillaria are a common group in tidelands throughout Japan. Recently, population sizes of Batillaria multiformis have been reduced due to coastal area reclamation. Using next generation sequencing, we developed 11 microsatellite markers to reveal the genetic diversity and gene flow among populations and combined them into a(More)
20 The Asian horn snail Batillaria attramentaria is a species common in the Japanese coastal area. 21 For this species, human-mediated transport has been reported not only in Japan but also North 22 America. In this study, 14 microsatellite markers were developed to reveal the current population 23 genetic structure of this species by dual-suppression(More)
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