Two new complete mitochondrial genomes of Dorcus stag beetles (Coleoptera, Lucanidae)

The systematics of Dorcus MacLeay has been a long-standing debate. Mitochondrial genomes were widely used to deeply understand the phylogeny of problematic taxa in virtue of their genetic importance and comprehensiveness. To provide more useful genetic data for resolving the systematic disputation o...

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Bibliographic Details
Published in:Genes & genomics 2018, 40(8), , pp.873-880
Main Authors: Chen, YongJing, Liu, Jing, Cao, YuYan, Zhou, Shiju, Wan, Xia
Format: Article
Language:English
Subjects:
Animal Genetics and Genomics
Base composition
Bayesian analysis
Biomedical and Life Sciences
Dacus seguyi
Genomes
Human Genetics
Life Sciences
Lucanidae
Microbial Genetics and Genomics
Mitochondria
Mitochondrial DNA
Phylogenetics
Phylogeny
Plant Genetics and Genomics
Protein composition
Research Article
rRNA
생물학
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Summary:The systematics of Dorcus MacLeay has been a long-standing debate. Mitochondrial genomes were widely used to deeply understand the phylogeny of problematic taxa in virtue of their genetic importance and comprehensiveness. To provide more useful genetic data for resolving the systematic disputation of Dorcus stag beetles. The complete mitochondrial genomes of Dorcus hopei and Dorcus seguyi were obtained using the next generation sequencing. Characteristics of the two genomes are explicated through comparing their genome organization and base composition, protein-coding genes and codon usage, intergenic spacers and non-coding region, transfer and ribosomal RNA genes and control region. Phylogenetic relationships were reconstructed using Maximum likelihood and Bayesian inference analyses based on the concatenated nucleotide sequences of 13 PCGs from 9 stag beetles and 3 scarab beetles. The complete mitogenomes of D. hopei and D. seguyi was 16,026 bp/17,955 bp long, respectively. A tandem repeat with the length of 940 bp was presented in the A+T-rich region in D. hopei . An unexpected non-coding region of 332 bp was located between nad2 and trnW in D. seguyi . The phylogenetic analyses robustly supported that D. hopei formed a branch with the generic type of D. parallelipipedus . Whereas D. seguyi was not covered in the branch of ( D. hopei  +  D. parallelipipedus ), but was sister to them. The results indicated that D. hopei should be a good member of Dorcus MacLeay. The taxonomic status of D. seguyi remained to be studied furtherly.
ISSN:1976-9571
2092-9293
DOI:10.1007/s13258-018-0699-8