Molecular identification of ornamental loaches (Cypriniformes, Cobitoidei) of North East India using mitochondrial genes

Q4 Biochemistry, Genetics and Molecular Biology Animal Gene Pub Date : 2022-09-01 DOI:10.1016/j.angen.2022.200136

Mukunda Goswami , A. Pavan Kumar , Grishma S. Patil , Trinica George , Rupak Nath , R.N. Bhuyan , C. Siva , M.A. Laskar , Samson Sumer

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Abstract

North East (NE) India, referred as Biodiversity Hot Spot, is the natural habitat of a large variety of ornamental fishes. Among all the ornamental fishes available in NE India, Loaches are of great importance in the ornamental fish trade. In this study, 38 specimens from ten loaches species of North-eastern India are characterized using three mitochondrial genes i.e. cytochrome c oxidase subunit I (COI), 16S rRNA and cytochrome b (Cyt b). The average genetic distance values for all the three mitochondrial genes have increased gradually when moving up from species to genus to family levels. Among the genes, Cyt b gene showed relatively higher genetic distance values than mitochondrial 16S rRNA and COI genes. Some of the specimens of Botia and Lepidocephalichthys showed higher intraspecific genetic distance values compared to other specimens under analysis.

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利用线粒体基因对印度东北部观赏泥鳅（Cypriniformes，Cobitoidei）的分子鉴定

印度东北部被称为生物多样性热点，是各种观赏鱼的自然栖息地。在印度东北部的观赏鱼中，泥鳅在观赏鱼贸易中占有重要地位。利用细胞色素c氧化酶亚基I (COI)、16S rRNA和细胞色素b (Cyt b) 3个线粒体基因对印度东北部10个泥鳅种的38个标本进行了特征分析。3个线粒体基因的平均遗传距离值随着种、属、科水平的上升而逐渐增加。其中，Cyt b基因的遗传距离值高于线粒体16S rRNA和COI基因。与其他标本相比，部分鱼属和鳞头鱼属的种内遗传距离值较高。

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Animal Gene Agricultural and Biological Sciences-Insect Science

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期刊介绍： Gene Reports publishes papers that focus on the regulation, expression, function and evolution of genes in all biological contexts, including all prokaryotic and eukaryotic organisms, as well as viruses. Gene Reports strives to be a very diverse journal and topics in all fields will be considered for publication. Although not limited to the following, some general topics include: DNA Organization, Replication & Evolution -Focus on genomic DNA (chromosomal organization, comparative genomics, DNA replication, DNA repair, mobile DNA, mitochondrial DNA, chloroplast DNA). Expression & Function - Focus on functional RNAs (microRNAs, tRNAs, rRNAs, mRNA splicing, alternative polyadenylation) Regulation - Focus on processes that mediate gene-read out (epigenetics, chromatin, histone code, transcription, translation, protein degradation). Cell Signaling - Focus on mechanisms that control information flow into the nucleus to control gene expression (kinase and phosphatase pathways controlled by extra-cellular ligands, Wnt, Notch, TGFbeta/BMPs, FGFs, IGFs etc.) Profiling of gene expression and genetic variation - Focus on high throughput approaches (e.g., DeepSeq, ChIP-Seq, Affymetrix microarrays, proteomics) that define gene regulatory circuitry, molecular pathways and protein/protein networks. Genetics - Focus on development in model organisms (e.g., mouse, frog, fruit fly, worm), human genetic variation, population genetics, as well as agricultural and veterinary genetics. Molecular Pathology & Regenerative Medicine - Focus on the deregulation of molecular processes in human diseases and mechanisms supporting regeneration of tissues through pluripotent or multipotent stem cells.