Batillaridae is a common gastropod family that occurs abundantly in the shallow coastal zone of the intertidal mudflats of the northwest Pacific Ocean, Australasia, and North America. In this family, Batillaria attramentaria is known for its biological invasion and colonization in estuarine and intertidal zones. It can endure and adapt the harsh intertidal conditions such as frequent temperature alteration, salinity, and air exposure. Therefore, we sequenced and assembled this Korean batillariid genome to get insight into its intertidal adaptive features. Approximately 53 Gb of DNA sequences were generated, and 863 scaffolds were assembled into a draft genome of 0.715 Gb with 97.1% BUSCO completeness value. A total of 40,596 genes were predicted. We estimated that B. attramentaria and Conus consors diverged about 230 million years ago (MYA) based on the phylogenetic analysis of closely related gastropod species. This genome study sets the footstep for genomics studies among native and introduced Batillaria populations and the Batillaridae family members.
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http://dx.doi.org/10.1038/s41597-023-02403-9 | DOI Listing |
Zoolog Sci
October 2024
The University Museum, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.
We investigated geographic, genetic, and morphological variations in the intertidal limpet , a species with a broad distribution across Japan. A total of 98 specimens were obtained from 36 locations spanning the entire Japanese Archipelago, encompassing both the northern and southern regions. Examination of mitochondrial COI sequences revealed a distinct geographic genetic structure, delineating three prominent clades: (1) the Kuroshio Current, (2) the Tsushima Current, and (3) the Ryukyu-China groups.
View Article and Find Full Text PDFSci Data
July 2023
Department of Life Science, Division of EcoScience, Ewha Womans University, Seoul, South Korea.
Mar Environ Res
July 2023
College of Life Science, Yantai University, Shandong, 264005, China.
Heating rate has gained extensive attention in mechanistic understanding of physiological responses to changing thermal conditions in the context of climate change. In polymorphic gastropods, differences in the absorption of solar energy between dark- and light-coloured individuals lead to supposable differences in their heating rates and body temperatures in sunshine. In the present study, we examined the effect of heating rate on heart rate (HR) in a polymorphic gastropod Batillaria attramentaria.
View Article and Find Full Text PDFJ Exp Biol
November 2022
College of Life Science, Yantai University, Shandong 264005, China.
Gastropods exhibit remarkable variation in shell colour within and among populations, but the function of shell colour is often not clear. In the present study, body temperature in the field and physiological and transcriptomic responses to thermal stress were investigated in different shell colour morphs of the mudflat snail Batillaria attramentaria. Using biomimetic models, we found that the body temperature of snails with a dark unbanded shell (D-type morph) was slightly higher than that of snails with a white line on the upper side of each whorl (UL-type morph) when exposed to sunlight.
View Article and Find Full Text PDFJ Parasitol
January 2022
Department of Parasitology, Asahikawa Medical University, Asahikawa 078-8510, Japan.
Two cases of human philophthalmosis have been reported in Japan. Gravid flukes removed from the eyes of the patients were broken, but their morphological characteristics suggest that an unknown species of the genus Philophthalmus is involved as a pathogen for humans. The mitochondrial DNA barcode of the human eye fluke enabled us to discover its larval stage from the Japanese mud snail, Batillaria attramentaria.
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