Acrostichus ziaelasi n. sp. (Nematoda: Diplogastridae) isolated from the beetle Ziaelas formosanus, a tenebrionid symbiont of the termite Odontotermes formosanus with remarks on the genus Acrostichus Rahm, 1928

Kanzaki, Natsumi; Liang, Wei-Ren; Chiu, Chun-I; Li, Hou-Feng

doi:10.1016/j.jcz.2020.03.002

Cited by 4 publications

(3 citation statements)

References 33 publications

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“…They all share some common characteristics in their feeding behaviour and possess stoma divided into anterior wide and posterior tubular part; cheilostom with rugae/filament and metastegostom wellarmed with highly movable dorsal and right subventral teeth. Due to the qualitative similarities in the stomatal structures (Fürst von Lieven, 2002), the placement of Mononchoides, Neodiplogaster and Tylopharynx genera remained more or less consistent with earlier studies (Kanzaki et al, 2014(Kanzaki et al, , 2015(Kanzaki et al, , 2020Kanzaki, 2016;Slos et al, 2018, and others).…”

Section: Phylogenetic Statussupporting

confidence: 71%

Molecular phylogeny and new insight into the stomatal complexity ofFictor platypapillatasp. n. (Diplogastridae: Nematoda) associated withOniticellus cinctus(Coleoptera: Scarabaeidae)

Mahboob

Tahseen

2022

J. Helminthol.

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The new species Fictor platypapillata was isolated from dung beetle Oniticellus cinctus (Scarabaeidae), collected from the district Balrampur, Uttar Pradesh, India. Fictor platypapillata sp. n. is described based on morphology, morphometric and molecular characterization, supplemented with scanning electron microscopy observations. The new species is characterized by two female morphs based on stomatal dimorphism: α morph with left subventral wall having 14 denticles, six low conical and eight elongated finger-like, slender denticles separated by a deep groove; inner wall of gymnostom with linearly arranged warts; β morph with inner wall of gymnostom lacking warts; dorsal and right subventral stegostomal walls having large, slender teeth with hook-shaped apical end. Genital sensilla eight pairs with v5 pair flattened, button-shaped, located ventrally. The phylogenetic analyses revealed significant congruence, especially in the position of the subordinate taxa of genus Fictor that shows polyphyly by both Bayesian inference and minimum evolution methods. The taxonomy of the genus is updated with a valid species list along with their geographical mapping.

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Section: Phylogenetic Statussupporting

confidence: 71%

Molecular phylogeny and new insight into the stomatal complexity ofFictor platypapillatasp. n. (Diplogastridae: Nematoda) associated withOniticellus cinctus(Coleoptera: Scarabaeidae)

Mahboob

Tahseen

2022

J. Helminthol.

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“…sycomorus ) was probably due to a single species of Pristionchus that can manifest in morphotypes as divergent as five different diplogastrid genera, presumably to fill niches during the phenology of the developing syconium [ 8 ]. There is also the newly documented situation of extreme morphological divergence in Acrostichus ziaelasi Kanzaki, Liang, Chiu & Li from a tenebrionid beetle termitiphile [ 36 ] which converges in trophic morphology on another genus ( Rhabditolaimus ) which might help explain Martin et al’s [ 1 ] observation of nematodes that looked like members of Cylindrocorpidae (= Rhabditolaimus ) from Sycomorus figs. Given that A .…”

Section: Discussionmentioning

confidence: 99%

Molecular diversity and relationships of fig associated nematodes from South Africa

et al. 2021

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Nematodes of figs and fig wasps have received limited attention in Africa since their discovery in 1973. Sixteen of the 25 species of native South African figs were sampled for nematode associates using molecular barcoding with three loci (SSU, LSU D2-D3 and mtCOI) and fourteen (93%) were positive for at least one nematode species. Thirty-three putative species of nematodes were identified and classified according to the loci that were amplified and successfully sequenced. Fourteen putative nematode species were classified as Aphelenchoididae, of which nine were identified as Ficophagus from four species of Ficus from the section Galoglychia (i.e., five ex F. burkei including one shared with F. natalensis, one ex F. glumosa, one ex F. lutea, and one ex F. stuhlmannii) and one species ex F. sur from the section Sycomorus. In addition, there were four nematode species classified as Schistonchus s.s. from section Galoglychia figs (i.e., one ex F. burkei, two ex F. trichopoda, and one ex F. glumosa). There was also one species of Bursaphelenchus nematode recovered from F. sur from the section Sycomorus. Sixteen putative nematode species were classified as Diplogastridae, of which eight occurred in two clades of what is currently called Parasitodiplogaster with one (P. salicifoliae) being recovered from two Ficus species in the section Urostigma (F. salicifolia and F. ingens) and seven diplogastrids being associated with six species of Ficus from the section Galoglychia (i.e., two ex F. burkei including P. sycophilon, one ex F. stuhlmannii, one ex F. burtt-davyi, one ex F. trichopoda, one ex F. abutilifolia and one ex F. sansibarica). Three Acrostichus spp., a Teratodiplogaster and a Pristionchus species were recovered from F. sur and two Teratodiplogaster spp. and Pristionchus sycomori were recovered from F. sycomorus with both Ficus species belonging to the subgenus and section Sycomorus. The identities of the previously described T. martini and Parasitodiplogaster doliostoma (= Pristionchus sp. 35) are discussed. Lastly, there was a panagrolaimid identified from F. petersii.

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“…PROGR AM= blast n& PAGE_ TYPE= Blast Searc h& LINK_ LOC= blast home). According to the BLAST results and prior reports 23,24 , sequences for phylogenetic analysis were retrieved from the database (Table S1). Although the partial sequence of mtCOI gene was determined, the sequence was used only as a characteristic of the species, because the number of diplogastrid mtCOI sequences deposited in the GenBank database is not sufficient for phylogenetic analysis.…”

Section: Feeding Preference Examinationmentioning

confidence: 99%

Onthodiplogaster japonica n. gen., n. sp. (Rhabditida: Diplogastridae) isolated from Onthophagus sp. (Coleoptera: Scarabaeidae) from Japan

Kanzaki

Ikeda

Shinya

2023

Sci Rep

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A diplogastrid nematode was isolated from a dung beetle, Onthophagus sp., collected from a rotten mushroom in Kyoto, Japan. The species is characterised by its cheilostomatal shape, separated into 12 narrow plates (rugae), deep stegostom, large ellipsoidal amphids, conical female tail and characteristic receptaculum seminis in the female. Based on its phylogenetic status and stomatal composition, the species is typologically similar to two other diplogastrid genera, Neodiplogaster and Mononchoides. The species can be distinguished from these two genera by the size and shape of the amphid (small pore in Neodiplogaster), female tail shape (long and filiform in Mononchoides) and presence of receptaculum seminis (absence in the two nominal genera), and is described as a monotypic member of a new genus, Onthodiplogaster japonica n. gen., n. sp. Observation of feeding behaviour suggested that O. japonica n. gen., n. sp. does not show clear stomatal dimorphism or polymorphism, which is found in its close relatives, but the species can feed on nematodes (predation), fungi and bacteria. This monomorphic omnivory possibly represents its habitat of dung and other rotten materials, where the environment is biologically divergent, and its condition changes rapidly.

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Acrostichus ziaelasi n. sp. (Nematoda: Diplogastridae) isolated from the beetle Ziaelas formosanus, a tenebrionid symbiont of the termite Odontotermes formosanus with remarks on the genus Acrostichus Rahm, 1928

Cited by 4 publications

References 33 publications

Molecular phylogeny and new insight into the stomatal complexity ofFictor platypapillatasp. n. (Diplogastridae: Nematoda) associated withOniticellus cinctus(Coleoptera: Scarabaeidae)

Molecular phylogeny and new insight into the stomatal complexity ofFictor platypapillatasp. n. (Diplogastridae: Nematoda) associated withOniticellus cinctus(Coleoptera: Scarabaeidae)

Molecular diversity and relationships of fig associated nematodes from South Africa

Onthodiplogaster japonica n. gen., n. sp. (Rhabditida: Diplogastridae) isolated from Onthophagus sp. (Coleoptera: Scarabaeidae) from Japan

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