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Gene characterization and phylogenetic analysis of four mitochondrial genomes in Caenogastropoda

Acta Oceanologica Sinica 2024年第2期43卷 137-150页

作者： Jiangyong Qu Wanqi Yang Xindong Teng Li Xu Dachuan Zhang Zhikai Xing Shuang Wang Xiumei Liu Lijun Wang Xumin Wang College of Life Science Yantai UniversityYantai 264005China Qingdao International Travel Healthcare Center Qingdao 266071China Qingdao Dagang Customs Qingdao 266071China

Caenogastropoda is a highly diverse group,containing~60%of all existing *** in this subclass predominantly inhabit marine environments and have a high ecological and economic *** to the increase in relevant phylogenetic studies,our understanding of between species relatedness in Caenogastropoda has ***,the biodiversity,taxonomic status,and phylogenetic relationships of this group remain *** the present study,we performed next-generation sequencing of four complete mitochondrial genomes from three families(Buccinidae,Columbellidae,and Cypraeidae)and the four mitogenomes were classical circular structures,with a length of 16177 bp in Volutharpa ampullacea,16244 bp in Mitrella albuginosa,16926bp in Mauritia arabica asiatica and 15422 bp in Erronea *** composition analysis indicated that whole sequences were biased toward A and *** compared them with 171 complete mitochondrial genomes of *** phylogenetic relationship of Caenogastropoda derived from Maximum Likelihood(ML)and Bayesian Inference(BI)trees constructed based on CDS sequences was consistent with the results of traditional morphological analysis,with all three families showing close *** study supported Caenogastropoda at the molecular level as a separate clade of *** to our divergence time estimations,Caenogastropoda was formed during the middle Triassic period(~247.2–237 Ma).Our novel mitochondrial genomes provide evidence for the speciation of Caenogastropoda in addition to elucidating the mitochondrial genomic evolution of this subclass.

关键词： mitochondrial genome phylogenetic analysis Caenogastropoda

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Mitochondrial genomes of Tapes dorsatus and Cardita variegata:insights into Heteroconchia phylogeny

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Journal of Oceanology and Limnology 2024年第3期42卷 943-959页

作者： Xumin WANG Hua ZHANG Xindong TENG Wenhui SUN Zhikai XING Shuang WANG Xiumei LIU Jiangyong QU Lijun WANG College of Life Science Yantai UniversityYantai 264005China Qingdao International Travel Healthcare Center Qingdao 266071China

Heteroconchia,a widespread and abundant aquatic invertebrate,is an important clade of bivalve *** relationship between the three branches of Heteroconchia,Palaeoheterodonta,Archiheterodonta,and Euheterodonta has become a main controversy in molecular studies of the relationships between *** the present study,we assembled the complete mitochondrial genomes of Tapes dorsatus(Veneridae)and Cardita variegata(Carditidae)using high-throughput *** is the first mitochondrial genome belonging to the family Carditidae to be *** used 12 protein coding genes(excluding atp8)from the complete mitochondrial genomes of 146 species to recover the internal relationships of *** results support the traditional view of early branching of Palaeoheterodonta and the recovery of the monophyly of Palaeoheterodonta,Anomalodesmata,*** analysis show that gene arrangement within Venerida was highly ***-calibrated phylogenetic studies based on a relaxed molecular clock model suggested that Veneridae originated approximately 337.62 million years ago(Ma)and split into two major clades,whereas Carditidae originated approximately 510.09 *** results provide evidence of the internal relationships of Heteroconchia.

关键词： Tapes dorsatus Cardita variegata mitochondrial genome phylogeny

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