The complete mitochondrial genome of Thitarodes sejilaensis (Lepidoptera: Hepialidae), a host insect of Ophiocordyceps sinensis and its implication in taxonomic revision of Hepialus adopted in China

Zou, Zhiwen; Min, Qiang; Cheng, Shiyu; Xin, Tianrong; Xia, Bin

doi:10.1016/j.gene.2016.11.039

Cited by 16 publications

(10 citation statements)

References 41 publications

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“…The orientation and gene order of the mt‐genomes of Bombycidae s.l. are identical to those of the majority of Lepidoptera, but differ from the type found in the early‐diverged lepidopteran superfamilies Hepialoidea (Timmermans et al ., ; Zou et al ., ), as well as ancestral arthropods (Fahrein et al ., ). For insects, the ancestral gene order for tRNAs is hypothesized to be trnI‐trnQ‐trnM (Cao et al ., ), whereas in Bombycidae s.l.…”

Section: Discussionmentioning

confidence: 99%

Phylogenetic relationships among Bombycidae s.l. (Lepidoptera) based on analyses of complete mitochondrial genomes

Wang

Chen

et al. 2018

Systematic Entomology

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The family Bombycidae (sensu Minet, 1994) is a diverse group of species belonging to the superfamily Bombycoidea. It is an economically important group of moth species, containing well-known silk-producing insects, as well as many pests of agriculture and forestry. The morphology-based hypothesis of Minet (1994) on the composition of Bombycidae is in conflict with subsequent phylogenetic hypotheses for the superfamily based on nuclear genes. In this paper, the complete mitochondrial genomes of nine species of Bombycidae are presented for the first time. Based on these genomes, four dataset partitions and three gblocks parameter settings, phylogenetic relationships among Bombycidae were reconstructed using maximum likelihood and Bayesian inference methods. Bombycidae was confirmed as a polyphyletic group, with the traditional subfamilies Prismostictinae and Oberthueriinae forming a single well-supported clade that is distant to Bombycinae. The phylogenetic relationships within Bombycoidea were supported as ((((Bombycinae, Sphingidae), Saturniidae), (Prismostictinae, Oberthueriinae)), Eupterotidae).

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Section: Discussionmentioning

confidence: 99%

Phylogenetic relationships among Bombycidae s.l. (Lepidoptera) based on analyses of complete mitochondrial genomes

Wang

Chen

et al. 2018

Systematic Entomology

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“…The average values of K a/ K s across the three Cryptocercus species’ pairwise comparisons were calculated by DNASP v.5.0 with Genetic code = mtDNA Drosophila [ 39 ]. The overlapping regions and intergenic spacers between genes were counted manually as in [ 40 ]. AT/GC skew analyses were carried out respectively with the formulas AT skew = [A − T]/[A + T] and GC skew = [G − C]/[G + C] [ 41 ].…”

Section: Methodsmentioning

confidence: 99%

The Complete Mitogenome of the Wood-Feeding Cockroach Cryptocercus meridianus (Blattodea: Cryptocercidae) and Its Phylogenetic Relationship among Cockroach Families

Wang

Che

2017

IJMS

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In this study, the complete mitochondrial genome of Cryptocercus meridianus was sequenced. The circular mitochondrial genome is 15,322 bp in size and contains 13 protein-coding genes, two ribosomal RNA genes (12S rRNA and 16S rRNA), 22 transfer RNA genes, and one D-loop region. We compare the mitogenome of C. meridianus with that of C. relictus and C. kyebangensis. The base composition of the whole genome was 45.20%, 9.74%, 16.06%, and 29.00% for A, G, C, and T, respectively; it shows a high AT content (74.2%), similar to the mitogenomes of C. relictus and C. kyebangensis. The protein-coding genes are initiated with typical mitochondrial start codons except for cox1 with TTG. The gene order of the C. meridianus mitogenome differs from the typical insect pattern for the translocation of tRNA-SerAGN, while the mitogenomes of the other two Cryptocercus species, C. relictus and C. kyebangensis, are consistent with the typical insect pattern. There are two very long non-coding intergenic regions lying on both sides of the rearranged gene tRNA-SerAGN. The phylogenetic relationships were constructed based on the nucleotide sequence of 13 protein-coding genes and two ribosomal RNA genes. The mitogenome of C. meridianus is the first representative of the order Blattodea that demonstrates rearrangement, and it will contribute to the further study of the phylogeny and evolution of the genus Cryptocercus and related taxa.

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“…Most of these 17 species are known by one Cytb sequence only, which might be the result of sampling a particularly invariant region of the mitogenome. However, this issue has not been brought to attention in previous attempts to summarize genetic data for the genus (Zou et al 2010, 2017). We noticed that in the comprehensive sampling across known range of caterpillar fungus, Zhang et al (2014) only recovered seven well-supported clades and two “orphan taxa”.…”

Section: Discussionmentioning

confidence: 99%

“…These sequences came from three sources: CO1 and mitogenome sequences of known Thitarodes species used in generating the Maximum Likelihood CO1 tree in this study (Suppl. material 1: Table S1), 26 Cytb sequences from known Thitarodes species as described in Zou et al (2017), 226 published sequences of different segments extracted from caterpillar fungus sclerotia (Zhang et al 2014; Quan et al (2014a, b). The latter sequences were not associated with clear species names.…”

Section: Methodsmentioning

confidence: 99%

Thitarodes shambalaensis sp. nov. (Lepidoptera, Hepialidae): a new host of the caterpillar fungus Ophiocordyceps sinensis supported by genome-wide SNP data

Wang¹,

Zhuang²,

Wang³

et al. 2019

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A new species of ghost moth, Thitarodes shambalaensissp. nov., is described from Yanzigou glacier, Mt. Gongga, Sichuan, China. The species is a host of the economically important caterpillar fungus Ophiocordyceps sinensis. Establishment of this new species is supported by morphology and genetic differentiation measured in a CO1 phylogeny and in genome-wide SNP coverage. A summary tree from 538 sequences of different genetic markers from Thitarodes (including sequences extracted from caterpillar fungus sclerotium samples) support the genus Thitarodes as a monophyletic group, and indicate that Thitarodes is the host genus for O. sinensis. Sampling efforts so far have centered on half of the known phylogenetic diversity of Thitarodes, with some species-level clusters (separated by < 2.5% genetic distance) containing 17 described species. Fifteen clusters are known from either a single “orphan taxon” or a single sequence from a caterpillar fungus sclerotium sample. We provide suggestions for building a more robust phylogeny of the genus Thitarodes and highlight some of the conservation threats that species from this genus face due to unprecedented habitat exploitation.

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The complete mitochondrial genome of Thitarodes sejilaensis (Lepidoptera: Hepialidae), a host insect of Ophiocordyceps sinensis and its implication in taxonomic revision of Hepialus adopted in China

Cited by 16 publications

References 41 publications

Phylogenetic relationships among Bombycidae s.l. (Lepidoptera) based on analyses of complete mitochondrial genomes

Phylogenetic relationships among Bombycidae s.l. (Lepidoptera) based on analyses of complete mitochondrial genomes

The Complete Mitogenome of the Wood-Feeding Cockroach Cryptocercus meridianus (Blattodea: Cryptocercidae) and Its Phylogenetic Relationship among Cockroach Families

Thitarodes shambalaensis sp. nov. (Lepidoptera, Hepialidae): a new host of the caterpillar fungus Ophiocordyceps sinensis supported by genome-wide SNP data

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