The chromosome-level genome assembly and annotation of the silver-lipped pearl oyster, Pinctada maxima
文献类型： 外文期刊
作者： Mu, Qianqian 1 ; Li, Zijian 1 ; Liu, Mingyang 1 ; Zhao, Baojun 1 ; Yang, Zhihui 1 ; Bao, Zhenmin 1 ; Hu, Jingjie 1 ; Liu, Pingping 1 ;
作者机构： 1.Ocean Univ China, Sanya Oceanog Inst, Key Lab Trop Aquat Germplasm Hainan Prov, Sanya 572000, Peoples R China
2.Ocean Univ China, Coll Marine Life Sci, MOE Key Lab Marine Genet & Breeding, Qingdao 266003, Peoples R China
3.Chinese Acad Fishery Sci, State Key Lab Mariculture Biobreeding & Sustainabl, Beidaihe Cent Expt Stn, Qinhuangdao 066100, Peoples R China
期刊名称：SCIENTIFIC DATA （ 影响因子：6.9； 五年影响因子：8.7 ）
ISSN：
年卷期： 2025 年 12 卷 1 期
页码：
收录情况： SCI
摘要： The silver-lipped pearl oyster (Pinctada maxima) is a valuable tropical aquaculture species, playing a crucial economic role in the global pearl industry. However, the lack of genomic reference limits our in-depth understanding of this species in genome-based breeding, conservation, evolution and adaptation. Here, annotated chromosome-level reference genome for P. maxima was generated by integrating PacBio long-read sequencing, Illumina short-read sequencing, and Hi-C sequencing data. The total genome size is 1,264.93 Mb, with contig N50 and scaffold N50 of 649 kb and 89.19 Mb, respectively. The majority (97.94%) of the assembled genome was anchored to the 14 chromosomes by Hi-C analysis. The relatively high genome completeness was observed, with 97.38% (metazoa_odb10 database) and 95.26% (mollusca_odb10 database) in BUSCO analysis. Genome annotation revealed approximately 65.46% of the repeat sequences and 26,315 protein-coding genes. Comparative genome analysis revealed 28 expanded and 48 contracted families (p < 0.05) in P. maxima, with 3.2% of genes (894) being species-specific. This chromosome-level genome serves as an essential resource for research in evolutionary genomics, phylogenetics, and biomineralization.
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