ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, Dilkusha, Lucknow, 226002, India.
Indian Council of Agricultural Research (ICAR), Krishi Anusandhan Bhawan-II, New Delhi, 110012, India.
Sci Data. 2024 Aug 17;11(1):898. doi: 10.1038/s41597-024-03747-6.
The freshwater aquaculture species, Cirrhinus mrigala, commonly known as mrigal, holds significance in the carp-dominated aquaculture system, globally. Despite constituting 1.08% of the total freshwater aquaculture production, mrigal is the third most important Indian major carp. However, its genome and associated information is not available. This study aims to address this gap by generation high quality genome assembly using PacBio long reads, Illumina short reads and Hi-C scaffolding. The characterization of assembled highly contiguous genome, 1.057 Gb in size, revealed 39,091 genes with functional annotations. The orthology analysis based on direct orthologs and single copy ortholgs places C. mrigala in a distinct position within the Otophysi clade. Additionally, the study delves into Hox gene clusters, identifying 38 Hox genes distributed in seven clusters. The present genomic information offers potential applications for sustainable aquaculture management, including selection programs for economic traits.
淡水养殖品种,圆口铜鱼,通常被称为圆口铜鱼,在全球以鲤鱼为主的水产养殖系统中具有重要意义。尽管其仅占淡水养殖总产量的 1.08%,但它是印度第三大重要的鲤鱼品种。然而,其基因组和相关信息尚不清楚。本研究旨在通过使用 PacBio 长读长、Illumina 短读长和 Hi-C 支架生成高质量的基因组组装来填补这一空白。组装的高度连续基因组大小为 1.057Gb,包含 39091 个具有功能注释的基因。基于直系同源物和单拷贝直系同源物的同源性分析将 C. mrigala 置于棘鳍鱼类分支中的一个独特位置。此外,该研究还深入探讨了 Hox 基因簇,鉴定出分布在七个簇中的 38 个 Hox 基因。目前的基因组信息为可持续水产养殖管理提供了潜在的应用,包括经济性状的选择计划。