Publication: Characterization of five complete Cyrtodactylus mitogenome structures reveals low structural diversity and conservation of repeated sequences in the lineage
Issued Date
2018-01-01
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ISSN
21678359
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2-s2.0-85059200773
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Mahidol University
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SCOPUS
Bibliographic Citation
PeerJ. Vol.2018, No.12 (2018)
Suggested Citation
Prapatsorn Areesirisuk, Narongrit Muangmai, Kirati Kunya, Worapong Singchat, Siwapech Sillapaprayoon, Sorravis Lapbenjakul, Watcharaporn Thapana, Attachai Kantachumpoo, Sudarath Baicharoen, Budsaba Rerkamnuaychoke, Surin Peyachoknagul, Kyudong Han, Kornsorn Srikulnath Characterization of five complete Cyrtodactylus mitogenome structures reveals low structural diversity and conservation of repeated sequences in the lineage. PeerJ. Vol.2018, No.12 (2018). doi:10.7717/peerj.6121 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/44915
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Title
Characterization of five complete Cyrtodactylus mitogenome structures reveals low structural diversity and conservation of repeated sequences in the lineage
Abstract
© Copyright 2018 Areesirisuk et al. Mitochondrial genomes (mitogenomes) of five Cyrtodactylus were determined. Their compositions and structures were similar to most of the available gecko lizard mitogenomes as 13 protein-coding, two rRNA and 22 tRNA genes. The non-coding control region (CR) of almost all Cyrtodactylus mitogenome structures contained a repeated sequence named the 75-bp box family, except for C. auribalteatus which contained the 225-bp box. Sequence similarities indicated that the 225-bp box resulted from the duplication event of 75-bp boxes, followed by homogenization and fixation in C. auribalteatus. The 75-bp box family was found in most gecko lizards with high conservation (55-75% similarities) and could form secondary structures, suggesting that this repeated sequence family played an important role under selective pressure and might involve mitogenome replication and the likelihood of rearrangements in CR. The 75-bp box family was acquired in the common ancestral genome of the gecko lizard, evolving gradually through each lineage by independent nucleotide mutation. Comparison of gecko lizard mitogenomes revealed low structural diversity with at least six types of mitochondrial gene rearrangements. Cyrtodactylus mitogenome structure showed the same gene rearrangement as found in most gecko lizards. Advanced mitogenome information will enable a better understanding of structure evolution mechanisms.