Dataset Information

Complete mitochondrail genome of Corydoras panda (Teleostei, Siluriformes, Callichthyidae, Corydoradinae).

ABSTRACT: We reported the complete mitochondrial genome yielded by next-generation sequencing of Corydoras panda in this study. The total length of the mitochondrial genome is 16,611?bp, with the base composition of 32.50% A, 26.30% T, 26.10% C, and 15.10% G, respectively. It contains two ribosomal RNA genes, 13 protein-coding genes, 22 transfer RNA genes, and a major non-coding control region (D-loop region). The arrangement of these genes is the same as that found in the Siluriformes. The complete mitogenomes of C. panda and other 18 species from Siluriformes were used for phylogenetic analysis using Neighbor-Joining method. The topology demonstrated that all species belong to nine genera are divided into three groups (Siluridae, Loricariidae, and Callichthyidae), and the C. panda was clustered with other species from genus Corydoras. Corydoras panda external morphological feature classification is consistent with the molecular classification results, so the information of the mitogenome could be used for future identification of Corydoras species.

SUBMITTER: Liu Q

PROVIDER: S-EPMC7706455 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Publications

Complete mitochondrail genome of <i>Corydoras panda</i> (Teleostei, Siluriformes, Callichthyidae, Corydoradinae).

Liu Qiaolin Q Liu Yi Y Xiao Tiaoyi T Xu Baohong B

Mitochondrial DNA. Part B, Resources 20190903 2

We reported the complete mitochondrial genome yielded by next-generation sequencing of <i>Corydoras panda</i> in this study. The total length of the mitochondrial genome is 16,611 bp, with the base composition of 32.50% A, 26.30% T, 26.10% C, and 15.10% G, respectively. It contains two ribosomal RNA genes, 13 protein-coding genes, 22 transfer RNA genes, and a major non-coding control region (D-loop region). The arrangement of these genes is the same as that found in the Siluriformes. The complet ...[more]

PMID: 33365771

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Project description:A very significant part of the world's freshwater ichthyofauna is represented by ancient, exceptionally diverse and cosmopolitan ray-finned teleosts of the order Siluriformes. Over the years, catfish have been established as an exemplary model for probing historical biogeography at various scales. Yet, several tantalizing gaps still exist in their phylogenetic history, timeline and mode of diversification. Here, we re-examine the phylogeny of catfish by assembling and analyzing almost all publicly available mitogenome data. We constructed an ingroup matrix of 62 full-length mitogenome sequences from 20 catfish families together with four cypriniform outgroups, spanning 15,557 positions in total. Partitioned maximum likelihood analyses and Bayesian relaxed clock dating using fossil age constraints provide some useful and novel insights into the evolutionary history of this group. Loricarioidei are recovered as the first siluriform group to diversify, rendering Neotropics the cradle of the order. The next deepest clade is the South American Diplomystoidei placed as a sister group to all the remaining Siluroidei. The two multifamilial clades of "Big Asia" and "Big Africa" are also recovered, albeit nodal support for the latter is poor. Within "Big Asia", Bagridae are clearly polyphyletic. Other interfamilial relationships, including Clariidae + Heteropneustidae, Doradidae + Auchenipteridae and Ictaluridae + Cranoglanididae are robustly resolved. Our chronogram shows that siluriforms have a Pangaean origin, at least as far back as the Early Cretaceous. The inferred timeline of the basal splits corroborates the "Out-of-South America" hypothesis and accords well with the fossil record. The divergence of Siluroidei most likely postdated the final separation of Africa and South America. An appealing case of phylogenetic affinity elaborated by biogeographic dispersal is exemplified by the Early Paleogene split between the Southeast Asian Cranoglanididae and Ictaluridae, with the latter radiating into North America's freshwater realm by Eocene. The end of Cretaceous probably concludes the major bout of diversification at the family level while with the dawn of the Cenozoic a prolific radiation is evident at the generic level.

Dataset Information

Complete mitochondrail genome of Corydoras panda (Teleostei, Siluriformes, Callichthyidae, Corydoradinae).

Publications

Complete mitochondrail genome of <i>Corydoras panda</i> (Teleostei, Siluriformes, Callichthyidae, Corydoradinae).

Similar Datasets

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