Complete mitochondrial genomes of Dermacentor silvarum and comparative analyses with another hard tick Dermacentor nitens

Guo, Dongwei; Zhang, Yan; Fu, Xue; Gao, Yuan; Liu, Yuting; Qiu, Jianhua; Chang, Qiao‐Cheng; Wang, Chun-Ren

doi:10.1016/j.exppara.2016.07.004

Cited by 27 publications

(19 citation statements)

References 29 publications

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“…In the present study, we obtained the mtDNA of three Cyathostominae nematodes for the first time and compared these mtDNA sequences those of Strongylidae species. The complete mtDNA sequences of the three nematodes were slightly different in length compared with the other Strongylidae nematodes (except for S. equinus and T. brevicauda ), which is consistent with the length of typical metazoan mt genomes (Gissi et al, 2008 ; Jia et al, 2010 ; Tian et al, 2015 ; Zhang et al, 2015 ; Guo et al, 2016 ; Liu et al, 2016 ). Because of the longer length of the non-coding regions, the S. equinus and T. brevicauda mt genomes were slightly longer than other Strongylidae nematodes mt genomes.…”

Section: Discussionsupporting

confidence: 72%

“…The mitochondrial genome is important in molecular biology, and is extensively applied when studying the taxonomy, population genetics, and systematics of parasites (Gissi et al, 2008 ; Zhang et al, 2015 ; Guo et al, 2016 ; Liu et al, 2016 ). In the present study, we obtained the mtDNA of three Cyathostominae nematodes for the first time and compared these mtDNA sequences those of Strongylidae species.…”

Section: Discussionmentioning

confidence: 99%

“…Mitochondrial (mt) genome sequences provide effective and reliable molecular markers for various types of evolutionary studies of parasites because of their strict maternal inheritance, apparent lack of recombination, rapid evolutionary rate, and comparatively conserved genomic structure (Gissi et al, 2008 ; Jia et al, 2010 ; Tian et al, 2015 ; Zhang et al, 2015 ; Guo et al, 2016 ; Liu et al, 2016 ), especially for classification of higher taxonomic levels. For example, the mt genome provided evidence that Orientobilharzia turkestanicum belongs to the genus Schistosoma , and is phylogenetically closer to the African schistosome group than to the Asian schistosome group (Wang et al, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

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Mitochondrial DNA Evidence Supports the Hypothesis that Triodontophorus Species Belong to Cyathostominae

et al. 2017

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Equine strongyles, the significant nematode pathogens of horses, are characterized by high quantities and species abundance, but classification of this group of parasitic nematodes is debated. Mitochondrial (mt) genome DNA data are often used to address classification controversies. Thus, the objectives of this study were to determine the complete mt genomes of three Cyathostominae nematode species (Cyathostomum catinatum, Cylicostephanus minutus, and Poteriostomum imparidentatum) of horses and reconstruct the phylogenetic relationship of Strongylidae with other nematodes in Strongyloidea to test the hypothesis that Triodontophorus spp. belong to Cyathostominae using the mt genomes. The mt genomes of Cy. catinatum, Cs. minutus, and P. imparidentatum were 13,838, 13,826, and 13,817 bp in length, respectively. Complete mt nucleotide sequence comparison of all Strongylidae nematodes revealed that sequence identity ranged from 77.8 to 91.6%. The mt genome sequences of Triodontophorus species had relatively high identity with Cyathostominae nematodes, rather than Strongylus species of the same subfamily (Strongylinae). Comparative analyses of mt genome organization for Strongyloidea nematodes sequenced to date revealed that members of this superfamily possess identical gene arrangements. Phylogenetic analyses using mtDNA data indicated that the Triodontophorus species clustered with Cyathostominae species instead of Strongylus species. The present study first determined the complete mt genome sequences of Cy. catinatum, Cs. minutus, and P. imparidentatum, which will provide novel genetic markers for further studies of Strongylidae taxonomy, population genetics, and systematics. Importantly, sequence comparison and phylogenetic analyses based on mtDNA sequences supported the hypothesis that Triodontophorus belongs to Cyathostominae.

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Section: Discussionsupporting

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mitochondrial DNA Evidence Supports the Hypothesis that Triodontophorus Species Belong to Cyathostominae

et al. 2017

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“…In particular, it is difficult to identify these species when the specimens are physically damaged, engorged with blood, at immature stages, even for sibling or cryptic species (Moshaverinia et al, 2009; Lv et al, 2014a). As such, research focused on ultra-morphology and molecular biology is necessary to identify the tick species correctly, and consequently obtain fundamental research for tick control (Zahler, Gothe & Rinder, 1995; Fukunaga et al, 2000; Bayin & Xu, 2001; Chitimia et al, 2009; Chantel, Shaun & Neil, 2010; Lv et al, 2014a; Lv et al, 2014b; Wu et al, 2016; Guo et al, 2016; Chao et al, 2017). According to the study of Lv et al (2014a), four molecular markers (COI, ITS2, 16S rDNA, 12S rDNA) are suitable for identifying species based on DNA sequences, and COI is the first choice for tick species identification.…”

Section: Introductionmentioning

confidence: 99%

Species delimitation of the Dermacentor ticks based on phylogenetic clustering and niche modeling

Wang

Guo

et al. 2019

PeerJ

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Three species belonging to the genus Dermacentor (Acari: Ixodidae), D. marginatus, D. nuttalli and D. silvarum are well known as vectors for a great variety of infection pathogens. All three of them are host ticks, which are very similar in morphology characteristics, life cycle, seasonal variation and ecological conditions, making it difficult to distinguish the three species. In the present study, these three species were delimitated based on molecular data and ecological niche. The molecular analysis showed that the three species can be distinguished by COI and ITS2 sequences. We created future potential distribution maps for the three species under climate changes with MaxEnt, which highlighted the different levels of the suitable habitats for each tick species. In addition, niche comparisons among the three species in Dermacentor were conducted, and the analysis suggested that niche overlap was relatively high with D. nuttalli and D. silvarum compared to the other species pairs, which was consistent with the molecular data. Niche equivalency and similarity test confirmed that these Dermacentor species were closely related but distinct species. In conclusion, delimitation of these three species within Dermacentor was supported by molecular phylogeny and quantitative ecological space. This study will provide deep insights into the biology, ecology, and diversification processes within Dermacentor species, and for the development of effective control for ticks.

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“…Haemaphysalis japonica (Ixodida: Ixodidae) is widely distributed in China, Russia, Germany, as well as temperate Eurasia, and Chinese-Russian border, respectively (Deng and Jiang 1991). Molecular characterizations of mitochondrial genomes have been made in some ticks (Guo et al 2016;Chang et al 2018), but H. japonica was not available for study.…”

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confidence: 99%

The complete mitochondrial genome of Haemaphysalis japonica (Ixodida: Ixodidae)

Chang

Diao

et al. 2019

Mitochondrial DNA Part B

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The complete mitochondrial genome of Haemaphysalis japonica is reported for the first time in this study. Its entire mitogenome is 14,685 bp in length, containing 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, and two non-coding regions. The phylogenetic analysis by Bayesian inference method show that H. japonica and other species of genus Haemaphysalis formed one clade, indicating that H. japonica belongs to the genus Haemaphysalis.

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Complete mitochondrial genomes of Dermacentor silvarum and comparative analyses with another hard tick Dermacentor nitens

Cited by 27 publications

References 29 publications

Mitochondrial DNA Evidence Supports the Hypothesis that Triodontophorus Species Belong to Cyathostominae

Mitochondrial DNA Evidence Supports the Hypothesis that Triodontophorus Species Belong to Cyathostominae

Species delimitation of the Dermacentor ticks based on phylogenetic clustering and niche modeling

The complete mitochondrial genome of Haemaphysalis japonica (Ixodida: Ixodidae)

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