Dataset Information

The complete mitochondrial genome of the subterranean termite, Reticulitermes kanmonensis Takematsu, 1999 (Isoptera: Rhinotermitidae).

ABSTRACT: We have determined the mitochondrial genome of Reticulitermes kanmonensis Takematsu, 1999. The total length of the R. kanmonensis is 16,484?bp with 66.1% A?+?T content. It consists of 13 PCGs, 22 tRNA, 2 rRNA genes and an A?+?T-rich control region. All the protein-coding genes used ATN as start codon. But the stop codons were TAA, TAG, and an incomplete termination codon (T) abutting an adjacent tRNA gene. The A?+?T-rich control region was 1680?bp in length with 70.4% A?+?T content.

SUBMITTER: Han T

PROVIDER: S-EPMC7799627 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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The complete mitochondrial genome of the subterranean termite, Reticulitermes kanmonensis Takematsu, 1999 (Isoptera: Rhinotermitidae).

Han Taeman T Park Haechul H Lee Jong-Ho JH Hong Ki-Jeong KJ Kim Yongsung Y Park Jongsun J Lee Wonhoon W

Mitochondrial DNA. Part B, Resources 20170803 2

We have determined the mitochondrial genome of Reticulitermes kanmonensis Takematsu, 1999. The total length of the R. kanmonensis is 16,484 bp with 66.1% A + T content. It consists of 13 PCGs, 22 tRNA, 2 rRNA genes and an A + T-rich control region. All the protein-coding genes used ATN as start codon. But the stop codons were TAA, TAG, and an incomplete termination codon (T) abutting an adjacent tRNA gene. The A + T-rich control region was 1680 bp in length wit ...[more]

PMID: 33473878

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Project description:BackgroundCarbon dioxide (CO2) is a pervasive chemical stimulus that plays a critical role in insect life, eliciting behavioral and physiological responses across different species. High CO2 concentration is a major feature of termite nests, which may be used as a cue for locating their nests. Termites also survive under an elevated CO2 concentration. However, the mechanism by which elevated CO2 concentration influences gene expression in termites is poorly understood.MethodsTo gain a better understanding of the molecular basis involved in the adaptation to CO2 concentration, a transcriptome of Coptotermes formosanus Shiraki was constructed to assemble the reference genes, followed by comparative transcriptomic analyses across different CO2 concentration (0.04%, 0.4%, 4% and 40%) treatments.Results(1) Based on a high throughput sequencing platform, we obtained approximately 20 GB of clean data and revealed 189,421 unigenes, with a mean length and an N50 length of 629 bp and 974 bp, respectively. (2) The transcriptomic response of C. formosanus to elevated CO2 levels presented discontinuous changes. Comparative analysis of the transcriptomes revealed 2,936 genes regulated among 0.04%, 0.4%, 4% and 40% CO2 concentration treatments, 909 genes derived from termites and 2,027 from gut symbionts. Genes derived from termites appears selectively activated under 4% CO2 level. In 40% CO2 level, most of the down-regulated genes were derived from symbionts. (3) Through similarity searches to data from other species, a number of protein sequences putatively involved in chemosensory reception were identified and characterized in C. formosanus, including odorant receptors, gustatory receptors, ionotropic receptors, odorant binding proteins, and chemosensory proteins.DiscussionWe found that most genes associated with carbohydrate metabolism, energy metabolism, and genetic information processing were regulated under different CO2 concentrations. Results suggested that termites adapt to ?4% CO2 level and their gut symbionts may be killed under high CO2 level. We anticipate that our findings provide insights into the transcriptome dynamics of CO2 responses in termites and form the basis to gain a better understanding of regulatory networks.

Dataset Information

The complete mitochondrial genome of the subterranean termite, Reticulitermes kanmonensis Takematsu, 1999 (Isoptera: Rhinotermitidae).

Publications

The complete mitochondrial genome of the subterranean termite, <i>Reticulitermes kanmonensis</i> Takematsu, 1999 (Isoptera: Rhinotermitidae).

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