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조회133

충북대학교

J. Hazard. Mater., Available online 22 November 2024, 136627 | https://doi.org/10.1016/j.jhazmat.2024.13662 Genome assembly, gene content, and plastic gene expression responses to salinity changes in the Brackishwater Clam (Corbicula japonica) from a dynamic estuarine environment

Hyeongwoo Choi ^a, Yun Keun An ^b, Chan-Jun Lee^c, Chi-une Song ^a, Eun-Jeong Kim ^a, Carol Eunmi Lee ^d, Sung-Jin Cho ^c, Seong-il Eyun ^a

^aDepartment of Life Science, Chung-Ang University, Seoul 06974, Korea
^bDivision of Marine Technology, Chonnam National University, Yeosu 59626, Korea
^cDepartment of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju 28644, Korea
^dDepartment of Integrative Biology, University of Wisconsin, Madison, WI 53706, USA

Corresponding authors: Sung-Jin Cho, Seong-il Eyun

Abstract

Estuaries are dynamic transition zones between marine and freshwater environments, where salinity varies greatly on spatial and temporal scales. The temporal salinity fluctuations of these habitats require organisms to rapidly regulate ionic concentrations and osmotic pressure to survive in these dynamic conditions. Understanding the extent of plasticity of euryhaline animals is vital for predicting their responses and resilience to salinity change. We generated the first high-resolution genome and transcriptome sequences of C. japonica. In comparison with 11 other molluscan genomes, the C. japonica genome displayed striking expansions of putative neuron-related genes and gene families. The involvement of these genes in the glutamate/GABA-glutamine and glycine cycle suggests a possible contribution to the excitation of neuronal networks, particularly under high salinity conditions. This study contributes to our understanding of mechanisms underlying the rapid responses of estuarine species to changing conditions and raises many intriguing hypotheses and questions for future investigation.

논문정보

형식Research article
게재일2024년 11월 (BRIC 등록일 2024-11-27)
연구진국내(교신)+국외 연구진
분야 생명과학 > 분류/생태/환경생물학

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