Title |
Complete mitochondrial genomes of the human follicle mites Demodex brevis and D. folliculorum: novel gene arrangement, truncated tRNA genes, and ancient divergence between species
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Published in |
BMC Genomics, December 2014
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DOI | 10.1186/1471-2164-15-1124 |
Pubmed ID | |
Authors |
Michael F Palopoli, Samuel Minot, Dorothy Pei, Alicia Satterly, Julie Endrizzi |
Abstract |
Follicle mites of the genus Demodex are found on a wide diversity of mammals, including humans; surprisingly little is known, however, about the evolution of this association. Additional sequence information promises to facilitate studies of Demodex variation within and between host species. Here we report the complete mitochondrial genome sequences of two species of Demodex known to live on humans-Demodex brevis and D. folliculorum-which are the first such genomes available for any member of the genus. We analyzed these sequences to gain insight into the evolution of mitochondrial genomes within the Acariformes. We also used relaxed molecular clock analyses, based on alignments of mitochondrial proteins, to estimate the time of divergence between these two species. |
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