Mitochondrial genome rearrangements at low taxonomic levels: three distinct mitogenome gene orders in the genus Pseudoniphargus (Crustacea: Amphipoda)

Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
Morten StokkanJoan Pons

Abstract

A comparison of mitochondrial genomes of three species of the amphipod Pseudoniphargus revealed the occurrence of a surprisingly high level of gene rearrangement involving protein-coding genes that is a rare phenomenon at low taxonomic levels. The three Pseudoniphargus mitogenomes also display a unique gene arrangement with respect to either the presumed Pancrustacean order or those known for other amphipods. Relative long non-coding sequences appear adjacent to the putative breakage points involved in gene rearrangements of protein coding genes. Other details of the newly obtained mitochondrial genomes - e.g., gene content, nucleotide composition and codon usage - are similar to those found in the mitogenomes of other amphipod species studied. They all contain the typical mitochondrial genome set consisting of 13 protein-coding genes, 22 tRNAs, and two rRNAS, as well as a large control region. The secondary structures and characteristics of tRNA and ribosomal mitochondrial genes of these three species are also discussed.

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Citations

Jun 1, 2011·PloS One·Marco T NeiberStefan Koenemann
Jan 21, 2017·BMC Genomics·Elena V RomanovaDmitry Yu Sherbakov
Jun 1, 2019·Zoological Letters·Andrea LuchettiBarbara Mantovani
Nov 21, 2016·Mitochondrial DNA. Part B, Resources·Aaron William AuninsTimothy L King
Mar 7, 2021·Genes·Francesco ZapelloniJoan Pons

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