Comparison of full mitochondrial genomes for the rice weevil, Sitophilus oryzae and the maize weevil, Sitophilus zeamais (Coleoptera: Curculionidae)
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Date
2016
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Elsevier
Abstract
Complete mitochondrial genome sequences were assembled for the rice weevil, Sitophilus oryzae (17,602 bp) and
the maize weevil, S. zeamais (18,105 bp; Coleoptera: Curculionidae: Dryophthorinae), which encode 13 protein
coding genes (PCGs), 22 transfer RNAs, and 2 ribosomal RNAs that is typical among Animalia. The A + T-rich con trol regions of S. oryzae (2818 bp) and S. zeamais (2832 bp) are the longest described to date among
curculionoidea (weevils). Additionally, non-coding intergenic regions have increased in size due to expansion
of tandem repeat arrays, but is more pronounced in S. zeamais (606 bp) compared to S. oryzae (109 bp). A
total of 69 and 22 substitution mutations were found among reads from S. oryzae and S. zeamais, out of which
68 and 2 were predicted in the PCGs respectively, with a majority in NADH Dehydrogenase subunit I. Phylogenet ic analyses of coleopteran insects based upon full mitogenomes PCG sequence supported the existence of
Curculionoidea and Tenebrionoidea as a monophyletic group, whereas the Cucujoidea and Elateroidea remain
paraphyletic. The mitogenomes of these two Sitophilus species provide insight into short-term evolutionary
relationships among curculionid beetles, and provide resources for the potential deciphering of more broad
systematic questions in the Order Coleoptera.
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Citation
Ojo, J. A., Valero, M. C., Sun, W., Coates, B. S., Omoloye, A. A., & Pittendrigh, B. R. (2016). Comparison of full mitochondrial genomes for the rice weevil, Sitophilus oryzae and the maize weevil, Sitophilus zeamais (Coleoptera: Curculionidae). Agri Gene, 2, 29-37.