Molecular characterisation of plant parasitic nematode Longidorus poessneckensis Altherr, 1974 (Nematoda: Longidoridae)

Kornobis, Franciszek; Subbotin, Sergei A.; Kumari, S.

doi:10.1007/s10658-017-1417-0

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…Similar to our results, Zhou et al (2013) reported low divergence (2.80%) in B. schroederi and a significant, high level of gene flow in 44 samples from genetically distinct giant panda populations from three mountain ranges using a barcoding method on the cytochrome b mitochondrial gene. A separate study on the plantparasitic nematode, Longidorus poessneckensis, also showed similar findings (Kornobis et al, 2017).…”

Section: Discussionmentioning

confidence: 66%

Genetic variation within a species of parasitic nematode, Skrjabingylus chitwoodorum, in skunks

Denham

Hughes

Dowler

et al. 2021

Journal of Nematology

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Carnivores in the families Mustelidae and Mephitidae are essential hosts for the cranial roundworm genus Skrjabingylus. A high prevalence of Skrjabingylus chitwoodorum has been observed in the striped skunk, Mephitis mephitis. Genetic barcoding studies of other nematodes have successfully used the cytochrome oxidase I (COI) mitochondrial gene to analyze genetic variation and divergence. We tested the hypothesis that low population structuring occurs within S. chitwoodorum because M. mephitis is widespread across much of North America and has high levels of gene flow. We extracted DNA from 38 samples of Skrjabingylus removed from the sinuses of M. mephitis and one from the plains spotted skunk, Spilogale putorius interrupta, for amplification and sequencing of COI. Analysis of 492 base pairs confirmed all samples were S. chitwoodorum and showed low genetic divergence (1.0%) within Texas, but high haplotype diversity. Supporting our hypothesis, no obvious divergent lineages based on geographic location were recovered within the samples based on Maximum Likelihood analysis and median joining haplotype network analysis. In fact, samples of Skrjabingylus from New York and South Dakota showed little difference compared with samples from Texas.

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Section: Discussionmentioning

confidence: 66%

Genetic variation within a species of parasitic nematode, Skrjabingylus chitwoodorum, in skunks

Denham

Hughes

Dowler

et al. 2021

Journal of Nematology

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show abstract

“…Our phylogenetic analyses using ribosomal and mitochondrial markers, revealed the higher number of cladogenesis events happen using COI marker, separating the populations of the species to four sub-clades in the corresponding phylogeny, in accordance with the results of the network analyses. This marker has already been proven as a useful tool in taxonomy of the Xiphinema americanum -group members [85,86] and has been recently used for population analyses and haplotype networking studies of Longidorus orientalis Loof, 1982 [87,88] and Longidorus poessneckensis Altherr, 1974 [89,90]. In the latter study, a 17.1% intraspecies variation was observed for this marker, and a comparison with intraspecies variation was performed with some other species.…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity, and description of a new dagger nematode, Xiphinema afratakhtehnsis sp. nov., (Dorylaimida: Longidoridae) in natural forests of southeastern Gorgan, northern Iran

et al. 2019

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The most prevalent dagger nematode recovered from rhizospheric soil samples of forest trees in the Afrātakhteh region of Golestan province (Iran) was Xiphinema afratakhtehnsis sp. nov. and it is described and illustrated with integrative approaches using both morphological and molecular criteria. It belongs to the morphospecies group 6 of the intragenic historical grouping of Xiphinema non- americanum species. The new species is characterized by females with 3.3–4.9 mm sized body, lip region separated from the rest of body by a depression, anteriorly expanded, 16–18 μm wide, vulva located at 47.2–58.5%, odontostyle 155–173 μm and odontophore 89–107 μm long, female genital system composed of two equally developed branches, the tubular part of each having spines, short symmetrically rounded female tail to symmetrically rounded with a small mucro-like projection at the end in a few females, rare males (n = 1 out of 74 females) with 83 μm long dorylaimoid spicules and four juvenile developmental stages. The third-stage juveniles (J3) have a characteristic tail shape (short, symmetrically conical with a club-shaped long mucro) demarcating the species, and being typologically useful for its separation from closely similar species (except X . cohni , with currently no data on its juvenile stages) viz . X . adenohystherum , X . iranicum , X . mazandaranense , X . nuragicum , X . pyrenaicum , X . robbinsi , X . sphaerocephalum and X . zagrosense . Molecular phylogenetic studies using genomic (partial large subunit and internal transcribed spacer 1 ribosomal RNA genes: D2-D3 and ITS1 rDNA) and mitochondrial cytochrome c oxidase subunit I gene ( COI mtDNA) revealed the new species forming a unique lineage in all reconstructed trees using Bayesian inference (BI) and maximum likelihood (ML) methods. The sequenced isolates of the new species formed a monophyletic group in the D2-D3 tree. The sequenced isolates of the new species for their COI mtDNA formed four subclades in COI mtDNA phylogeny, and four haplotypes in corresponding analysis.

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Molecular characterisation of plant parasitic nematode Longidorus poessneckensis Altherr, 1974 (Nematoda: Longidoridae)

Cited by 2 publications

References 24 publications

Genetic variation within a species of parasitic nematode, Skrjabingylus chitwoodorum, in skunks

Genetic variation within a species of parasitic nematode, Skrjabingylus chitwoodorum, in skunks

Genetic diversity, and description of a new dagger nematode, Xiphinema afratakhtehnsis sp. nov., (Dorylaimida: Longidoridae) in natural forests of southeastern Gorgan, northern Iran

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