A chromosome-level genome assembly of the jade perch (Scortum barcoo)
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Published:2022-07-15
Issue:1
Volume:9
Page:
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ISSN:2052-4463
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Container-title:Scientific Data
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language:en
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Short-container-title:Sci Data
Author:
Lu Yishan, Li Ruihan, Xia Liqun, Cheng Jun, Xia Hongli, Zhan Qiuyao, Yu Dapeng, You Xinxin, Gu Ruobo, Xu Junmin, Shi QiongORCID, Bian ChaoORCID
Abstract
AbstractEndemic to Australia, jade perch (Scortum barcoo) is a highly profitable freshwater bass species. It has extraordinarily high levels of omega-3 polyunsaturated fatty acids (PUFAs), which detailed genes involved in are largely unclear. Meanwhile, there were four chromosome-level bass species have been previous sequenced, while the bass ancestor genome karyotypes have not been estimated. Therefore, we sequenced, assembled and annotated a genome of jade perch to characterize the detailed genes for biosynthesis of omega-3 PUFAs and to deduce the bass ancestor genome karyotypes. We constructed a chromosome-level genome assembly with 24 pairs of chromosomes, 657.7 Mb in total length, and the contig and the scaffold N50 of 4.8 Mb and 28.6 Mb respectively. We also identified repetitive elements (accounting for 19.7% of the genome assembly) and predicted 26,905 protein-coding genes. Meanwhile, we performed genome-wide localization and characterization of several important genes encoding some key enzymes in the biosynthesis pathway of PUFAs. These genes may contribute to the high concentration of omega-3 in jade perch. Moreover, we conducted a series of comparative genomic analyses among four representative bass species at a chromosome level, resulting in a series of sequences of a deductive bass ancestor genome.
Funder
Guangdong Provincial Special Fund for Modern Agriculture Industry Technology Innovation Teams Shenzhen Science and Technology Innovation Program for International Cooperation
Publisher
Springer Science and Business Media LLC
Subject
Library and Information Sciences,Statistics, Probability and Uncertainty,Computer Science Applications,Education,Information Systems,Statistics and Probability
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