Dataset Information

The complete mtDNA genome of suspected natural Bagridae hybridization (Pelteobagrus olimcorporis sp.nov): genome characterization and phylogenetic analysis.

ABSTRACT: The complete mitochondrial genome sequence of the suspected new species (Pelteobagrus olimcorporis sp.nov) was first determined by a PCR-based sequencing method in this study. The complete mtDNA genome of this suspected new species is 16,533?bp in length and consists of 13 protein-coding genes, 22 transfer RNA genes (tRNA), two ribosomal RNA genes (rRNA) and a non-coding control region (D-loop). Compared with the 13 proteins genome of the Bagridae and Cyprinidae, results showed that this suspected new species was clustered together and from a sister group with fishes of Bagridae. Blasting the special region on NCBI, we found 99% of the sequence was the same with Pseudolaubuca sinensis. It indicated that P. olimcorporis sp.nov is a hybrid and the mitochondrial genomes of the father may permeate to the hybrid.

SUBMITTER: Li S

PROVIDER: S-EPMC7800642 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature

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The complete mtDNA genome of suspected natural Bagridae hybridization (<i>Pelteobagrus olimcorporis</i> sp.nov): genome characterization and phylogenetic analysis.

Li Sha S Liu Xueqing X Jiang Wei W Bai Yunqin Y Huang Tao T Wang Junhong J

Mitochondrial DNA. Part B, Resources 20160905 1

The complete mitochondrial genome sequence of the suspected new species (<i>Pelteobagrus olimcorporis</i> sp.nov) was first determined by a PCR-based sequencing method in this study. The complete mtDNA genome of this suspected new species is 16,533 bp in length and consists of 13 protein-coding genes, 22 transfer RNA genes (tRNA), two ribosomal RNA genes (rRNA) and a non-coding control region (D-loop). Compared with the 13 proteins genome of the Bagridae and Cyprinidae, results showed that this ...[more]

PMID: 33473574

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Project description:Two major transitions in animal evolution--the origins of multicellularity and bilaterality--correlate with major changes in mitochondrial DNA (mtDNA) organization. Demosponges, the largest class in the phylum Porifera, underwent only the first of these transitions and their mitochondrial genomes display a peculiar combination of ancestral and animal-specific features. To get an insight into the evolution of mitochondrial genomes within the Demospongiae, we determined 17 new mtDNA sequences from this group and analyzing them with five previously published sequences. Our analysis revealed that all demosponge mtDNAs are 16- to 25-kbp circular molecules, containing 13-15 protein genes, 2 rRNA genes, and 2-27 tRNA genes. All but four pairs of sampled genomes had unique gene orders, with the number of shared gene boundaries ranging from 1 to 41. Although most demosponge species displayed low rates of mitochondrial sequence evolution, a significant acceleration in evolutionary rates occurred in the G1 group (orders Dendroceratida, Dictyoceratida, and Verticillitida). Large variation in mtDNA organization was also observed within the G0 group (order Homosclerophorida) including gene rearrangements, loss of tRNA genes, and the presence of two introns in Plakortis angulospiculatus. While introns are rare in modern-day demosponge mtDNA, we inferred that at least one intron was present in cox1 of the common ancestor of all demosponges. Our study uncovered an extensive mitochondrial genomic diversity within the Demospongiae. Although all sampled mitochondrial genomes retained some ancestral features, including a minimally modified genetic code, conserved structures of tRNA genes, and presence of multiple non-coding regions, they vary considerably in their size, gene content, gene order, and the rates of sequence evolution. Some of the changes in demosponge mtDNA, such as the loss of tRNA genes and the appearance of hairpin-containing repetitive elements, occurred in parallel in several lineages and suggest general trends in demosponge mtDNA evolution.

Dataset Information

The complete mtDNA genome of suspected natural Bagridae hybridization (Pelteobagrus olimcorporis sp.nov): genome characterization and phylogenetic analysis.

Publications

The complete mtDNA genome of suspected natural Bagridae hybridization (<i>Pelteobagrus olimcorporis</i> sp.nov): genome characterization and phylogenetic analysis.

Similar Datasets

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