<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Mitochondrial genomes have widely been used as molecular markers in understanding the patterns and processes of nematode evolution. The species in genus <italic>Cruznema</italic> are free-living bacterivores as well as parasites of crickets and mollusks. The complete mitochondrial genome of <italic>C. tripartitum</italic> was determined through high-throughput sequencing as the first sequenced representative of the genus <italic>Cruznema</italic>. The genome is comprised of 14,067 bp nucleotides, and includes 12 protein-coding, two rRNA, and 22 tRNA genes. Phylogenetic analyses based on amino acid data support <italic>C. tripartitum</italic> as a sister to the clade containing <italic>Caenorhabditis elegans</italic> and <italic>Oscheius chongmingensis</italic>. The analysis of gene arrangement suggested that <italic>C. tripartitum</italic> shares the same gene order with <italic>O. chongmingensis</italic>, <italic>Litoditis marina</italic>, <italic>Diplocapter coronatus</italic>, genus <italic>Caenorhabditis</italic>, and <italic>Pristionchus pacificus</italic>. Thus, the mitochondrial gene arrangement is highly conserved in the family Rhabditidae as well as some species in Diplogasteridae.</p></abstract>

Mitochondrial genomes have widely been used as molecular markers in understanding the patterns and processes of nematode evolution. The species in genus Cruznema are free-living bacterivores as well as parasites of crickets and mollusks. The complete mitochondrial genome of C. tripartitum was determined through high-throughput sequencing as the first sequenced representative of the genus Cruznema. The genome is comprised of 14,067 bp nucleotides, and includes 12 protein-coding, two rRNA, and 22 tRNA genes. Phylogenetic analyses based on amino acid data support C. tripartitum as a sister to the clade containing Caenorhabditis elegans and Oscheius chongmingensis. The analysis of gene arrangement suggested that C. tripartitum shares the same gene order with O. chongmingensis, Litoditis marina, Diplocapter coronatus, genus Caenorhabditis, and Pristionchus pacificus. Thus, the mitochondrial gene arrangement is highly conserved in the family Rhabditidae as well as some species in Diplogasteridae.

Complete Mitogenome of <italic>Cruznema tripartitum</italic> Confirms Highly Conserved Gene Arrangement within Family Rhabditidae

Journal of Nematology

This work is licensed under the Creative Commons Attribution 4.0 International License.

Complete Mitogenome of  Confirms Highly Conserved Gene Arrangement within Family Rhabditidae

Mitochondrial genomes have widely been used as molecular markers in understanding the patterns and processes of nematode evolution. The species in genus...

Complete Mitogenome of Cruznema tripartitum Confirms Highly Conserved Gene Arrangement within Family Rhabditidae

Article Category: Research Paper

Published Online: Sep 24, 2022

Page range: 1 - 10

Received: Mar 04, 2022

DOI: https://doi.org/10.2478/jofnem-2022-0029

Keywords
Diplogasteridae, Genomics, Mitochondrial Genome, Nematode, Phylogeny, Rhabditina

© 2022 Du et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Complete Mitogenome of Cruznema tripartitum Confirms Highly Conserved Gene Arrangement within Family Rhabditidae

Article Category: Research Paper

Published Online: Sep 24, 2022

Page range: 1 - 10

Received: Mar 04, 2022

DOI: https://doi.org/10.2478/jofnem-2022-0029

KeywordsDiplogasteridae, Genomics, Mitochondrial Genome, Nematode, Phylogeny, Rhabditina

© 2022 Du et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
Diplogasteridae, Genomics, Mitochondrial Genome, Nematode, Phylogeny, Rhabditina