Deakin University
Browse

File(s) under permanent embargo

Complete mitochondrial DNA sequence of the Australian freshwater crayfish, Cherax destructor (Crustacea: Decapoda: Parastacidae): a novel gene order revealed

Version 2 2024-06-04, 03:43
Version 1 2014-10-27, 16:30
journal contribution
posted on 2024-06-04, 03:43 authored by A Miller, T Nguyen, C Burridge, Chris AustinChris Austin
The complete mitochondrial DNA sequence was determined for the Australian freshwater crayfish Cherax destructor (Crustacea: Decapoda: Parastacidae). The 15,895-bp genome is circular with the same gene composition as that found in other metazoans. However, we report a novel gene arrangement with respect to the putative arthropod ancestral gene order and all other arthropod mitochondrial genomes sequenced to date. It is apparent that 11 genes have been translocated (ND1, ND4, ND4L, Cyt b, srRNA, and tRNAs Ser(UGA), Leu(CUN), Ile, Cys, Pro, and Val), two of which have also undergone inversions (tRNAs Pro and Val). The ‘duplication/random loss’ mechanism is a plausible model for the observed translocations, while ‘intramitochondrial recombination’ may account for the gene inversions. In addition, the arrangement of rRNA genes is incompatible with current mitochondrial transcription models, and suggests that a different transcription mechanism may operate in C. destructor.

History

Journal

Gene

Volume

331

Pagination

65-72

Location

Amsterdam, Netherlands

ISSN

0378-1119

Language

eng

Notes

Available online 19 March 2004.

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2004, Elsevier B.V.

Publisher

Elsevier BV