文献类型：期刊文献

英文题名：Ocean acidification but not hypoxia alters the gonad performance in the thick shell mussel Mytilus coruscus

作者：Wang, Ting[1,2];Kong, Hui[1,2];Shang, Yueyong[1,2];Dupont, Sam[5];Wang, Xinghuo[1,2];Deng, Yuewen[3];Peng, Jinxia[4,4];Hu, Menghong[1,2];Wang, Youji[1,2]

机构：[1]Shanghai Ocean Univ, Int Res Ctr Marine Biosci, Minist Sci & Technol, Shanghai 201306, Peoples R China;[2]Shanghai Ocean Univ, Key Lab Explorat & Utilizat Aquat Genet Resources, Minist Educ, Shanghai 201306, Peoples R China;[3]Guangdong Ocean Univ, Fisheries Coll, Zhanjiang 524088, Peoples R China;[4]Acad Fishery Sci, Guangxi Key Lab Aquat Genet Breeding & Hlth Aquac, Nanning 530021, Guangxi, Peoples R China;[5]Univ Gothenburg, Kristineberg Marine Res Stn, Dept Biol & Environm Sci, Fiskebackskil, Sweden

年份：2021

卷号：167

外文期刊名：MARINE POLLUTION BULLETIN

收录：SCI-EXPANDED(收录号：WOS:000655696500014)、、EI(收录号：20211310155199)、Scopus(收录号：2-s2.0-85103276577)、WOS

基金：This work was supported by the research grants (31872587, 3201101951) from the Natural Science Foundation of China. This work was also supported by the Open Fund of Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, and Guangdong South China Sea Key Laboratory of Aquaculture for Aquatic Economic Animals, Guangdong Ocean University (KFKT2019ZD04).

语种：英文

外文关键词：Ocean acidification; Hypoxia; Mussel; Gonadal development; Sex steroids

外文摘要：Ocean acidification and hypoxia have become increasingly severe in coastal areas, and their co-occurrence poses emerging threats to coastal ecosystems. Here, we investigated the combined effects of ocean acidification and hypoxia on the reproductive capacity of the thick-shelled mussel Mytilus coruscus. Our results demonstrated low pH but not low oxygen induced decreased gonadosomatic index (GSI) in mussels. Male mussels had a lower level of sex steroids (estradiol, testosterone, and progesterone) when kept at low pH. Expression of genes related to reproduction were also impacted by low pH with a downregulation of genes involved in gonad development in males (beta-catenin and Wnt-7b involved in males) and an upregulation of testosterone synthesis inhibition-related gene (Wnt-4) in females. Overall, our results suggest that ocean acidification has an impact on the gonadal development through an alternation of gene expression and level of steroids while hypoxia had no significant effect.