Genome characterization and comparative analysis among three swimming crab species

In this study we sequenced the genomes of three economically important swimming crabs Portunus trituberculatus, Charybdis japonica, and Callinectes sapidus using the next-generation sequencing approach and made a basic assembly. The genomes of the three species are characterized with high heterozygo...

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Main Authors: Ming Liu, Shanshan Ge, Shivish Bhandari, Chunlei Fan, Yu Jiao, Chunlei Gai, Youhong Wang, Hongjun Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Marine Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2022.895119/full
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author Ming Liu
Shanshan Ge
Shivish Bhandari
Chunlei Fan
Yu Jiao
Chunlei Gai
Youhong Wang
Hongjun Liu
author_facet Ming Liu
Shanshan Ge
Shivish Bhandari
Chunlei Fan
Yu Jiao
Chunlei Gai
Youhong Wang
Hongjun Liu
author_sort Ming Liu
collection DOAJ
description In this study we sequenced the genomes of three economically important swimming crabs Portunus trituberculatus, Charybdis japonica, and Callinectes sapidus using the next-generation sequencing approach and made a basic assembly. The genomes of the three species are characterized with high heterozygosity (>1.2%) and high repeat content (>50%). Genome comparative analysis revealed 40 long conserved fragments (>5,000 bp) among the three species, most of them are involved in cardiac-related biological process. Relative higher genome similarity was found between P. trituberculatus and C. japonica that are belong to different subfamilies, compared to that between P. trituberculatus and C. sapidus which are from the same subfamily. It is inconsistent with their phylogenetic evolutionary trees inferred from previous mitochondrial DNA coding fragments and a conserved ANK2 protein fragment from this study. We speculated that the high genome similarity between P. trituberculatus and C. japonica might be attributed to their same inhabit range in which the genome is subject to the same environment selection, and the inconsistence between genome similarity and phylogenetic relationship is caused by the different evolutionary rates of coding DNA and non-coding DNA under environment selection.
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spelling doaj.art-e23cdf648c1e417390627471562ff03b2022-12-22T01:55:56ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-07-01910.3389/fmars.2022.895119895119Genome characterization and comparative analysis among three swimming crab speciesMing Liu0Shanshan Ge1Shivish Bhandari2Chunlei Fan3Yu Jiao4Chunlei Gai5Youhong Wang6Hongjun Liu7Patuxent Environmental and Aquatic Research Laboratory, Morgan State University, St. Leonard, MD, United StatesKey Laboratory of Disease Control in Mariculture, Marine Science Research Institute of Shandong Province, Qingdao, ChinaPatuxent Environmental and Aquatic Research Laboratory, Morgan State University, St. Leonard, MD, United StatesPatuxent Environmental and Aquatic Research Laboratory, Morgan State University, St. Leonard, MD, United StatesFishery College, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Disease Control in Mariculture, Marine Science Research Institute of Shandong Province, Qingdao, ChinaKey Laboratory of Disease Control in Mariculture, Marine Science Research Institute of Shandong Province, Qingdao, ChinaKey Laboratory of Disease Control in Mariculture, Marine Science Research Institute of Shandong Province, Qingdao, ChinaIn this study we sequenced the genomes of three economically important swimming crabs Portunus trituberculatus, Charybdis japonica, and Callinectes sapidus using the next-generation sequencing approach and made a basic assembly. The genomes of the three species are characterized with high heterozygosity (>1.2%) and high repeat content (>50%). Genome comparative analysis revealed 40 long conserved fragments (>5,000 bp) among the three species, most of them are involved in cardiac-related biological process. Relative higher genome similarity was found between P. trituberculatus and C. japonica that are belong to different subfamilies, compared to that between P. trituberculatus and C. sapidus which are from the same subfamily. It is inconsistent with their phylogenetic evolutionary trees inferred from previous mitochondrial DNA coding fragments and a conserved ANK2 protein fragment from this study. We speculated that the high genome similarity between P. trituberculatus and C. japonica might be attributed to their same inhabit range in which the genome is subject to the same environment selection, and the inconsistence between genome similarity and phylogenetic relationship is caused by the different evolutionary rates of coding DNA and non-coding DNA under environment selection.https://www.frontiersin.org/articles/10.3389/fmars.2022.895119/fullPortunus trituberculatusCharybdis japonicaCallinectes sapidusgenome heterozygositygenome repeat sequencesgenome similarity
spellingShingle Ming Liu
Shanshan Ge
Shivish Bhandari
Chunlei Fan
Yu Jiao
Chunlei Gai
Youhong Wang
Hongjun Liu
Genome characterization and comparative analysis among three swimming crab species
Frontiers in Marine Science
Portunus trituberculatus
Charybdis japonica
Callinectes sapidus
genome heterozygosity
genome repeat sequences
genome similarity
title Genome characterization and comparative analysis among three swimming crab species
title_full Genome characterization and comparative analysis among three swimming crab species
title_fullStr Genome characterization and comparative analysis among three swimming crab species
title_full_unstemmed Genome characterization and comparative analysis among three swimming crab species
title_short Genome characterization and comparative analysis among three swimming crab species
title_sort genome characterization and comparative analysis among three swimming crab species
topic Portunus trituberculatus
Charybdis japonica
Callinectes sapidus
genome heterozygosity
genome repeat sequences
genome similarity
url https://www.frontiersin.org/articles/10.3389/fmars.2022.895119/full
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