Comparative mitogenomics of the Decapoda reveals evolutionary heterogeneity in architecture and composition

Tan, Mun Hua, Gan, Han Ming, Lee, Yin Peng, Bracken-Grissom, Heather, Chan, Tin-Yam, Miller, Adam D. and Austin, Christopher 2019, Comparative mitogenomics of the Decapoda reveals evolutionary heterogeneity in architecture and composition, Scientific reports, vol. 9, no. 1, doi: 10.1038/s41598-019-47145-0.

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Title Comparative mitogenomics of the Decapoda reveals evolutionary heterogeneity in architecture and composition
Author(s) Tan, Mun HuaORCID iD for Tan, Mun Hua
Gan, Han MingORCID iD for Gan, Han Ming
Lee, Yin Peng
Bracken-Grissom, Heather
Chan, Tin-Yam
Miller, Adam D.ORCID iD for Miller, Adam D.
Austin, ChristopherORCID iD for Austin, Christopher
Journal name Scientific reports
Volume number 9
Issue number 1
Article ID 10756
Total pages 16
Publisher Nature Publishing Group
Place of publication London, Eng.
Publication date 2019-12
ISSN 2045-2322
Keyword(s) Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
Summary © 2019, The Author(s). The emergence of cost-effective and rapid sequencing approaches has resulted in an exponential rise in the number of mitogenomes on public databases in recent years, providing greater opportunity for undertaking large-scale comparative genomic and systematic research. Nonetheless, current datasets predominately come from small and disconnected studies on a limited number of related species, introducing sampling biases and impeding research of broad taxonomic relevance. This study contributes 21 crustacean mitogenomes from several under-represented decapod infraorders including Polychelida and Stenopodidea, which are used in combination with 225 mitogenomes available on NCBI to investigate decapod mitogenome diversity and phylogeny. An overview of mitochondrial gene orders (MGOs) reveals a high level of genomic variability within the Decapoda, with a large number of MGOs deviating from the ancestral arthropod ground pattern and unevenly distributed among infraorders. Despite the substantial morphological and ecological variation among decapods, there was limited evidence for correlations between gene rearrangement events and species ecology or lineage specific nucleotide substitution rates. Within a phylogenetic context, predicted scenarios of rearrangements show some MGOs to be informative synapomorphies for some taxonomic groups providing strong independent support for phylogenetic relationships. Additional comparisons for a range of mitogenomic features including nucleotide composition, strand asymmetry, unassigned regions and codon usage indicate several clade-specific trends that are of evolutionary and ecological interest.
Language eng
DOI 10.1038/s41598-019-47145-0
Indigenous content off
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2019, The Authors
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