Chromosome-Level Clam Genome Helps Elucidate the Molecular Basis of Adaptation to a Buried Lifestyle
文献类型： 外文期刊
作者： Wei, Min 1 ; Ge, Hongxing 1 ; Shao, Changwei 5 ; Yan, Xiwu 4 ; Nie, Hongtao 4 ; Duan, Haibao 1 ; Liao, Xiaoting 1 ; Zhang 1 ;
作者机构： 1.Jiangsu Ocean Univ, Jiangsu Key Lab Marine Bioresources & Environm, Lianyungang 222005, Peoples R China
2.Jiangsu Ocean Univ, Jiangsu Key Lab Marine Biotechnol, Lianyungang 222005, Peoples R China
3.Jiangsu Ocean Univ, Coinnovat Ctr Jiangsu Marine Bioind Technol, Lianyungang 222005, Peoples R China
4.Dalian Ocean Univ, Coll Fisheries & Life Sci, Dalian 116023, Peoples R China
5.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
期刊名称：ISCIENCE （ 影响因子：5.458； 五年影响因子：5.458 ）
ISSN：
年卷期： 2020 年 23 卷 6 期
页码：
收录情况： SCI
摘要： Bivalve mollusks are economically important invertebrates that exhibit marked diversity in benthic lifestyle and provide valuable resources for understanding the molecular basis of adaptation to benthic life. In this report, we present a high-quality, chromosome-anchored reference genome of the Venus clam, Cyclina sinensis. The chromosome-level genome was assembled by Pacific Bioscience single-molecule real-time sequencing, Illumine paired-end sequencing, 10 x Genomics, and high-throughtput chromosome conformation capture technologies. The final genome assembly of C. sinensis is 903.2 Mb in size, with a contig N50 size of 2.6 Mb and a scaffold N50 size of 46.5 Mb. Enrichment analyses of significantly expanded and positively selected genes suggested evolutionary adaptation of this dam to buried life. In addition, a change in shell color represents another mechanism of adaptation to burial in sediment. The high-quality genome generated in this work provides a valuable resource for investigating the molecular mechanisms of adaptation to buried lifestyle.
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