New plant-parasitic nematode from the mostly mycophagous genus Bursaphelenchus discovered inside figs in Japan.

A new nematode species, Bursaphelenchus sycophilus n. sp. is described. The species was found in syconia of a fig species, Ficus variegata during a field survey of fig-associated nematodes in Japan. Because it has a well-developed stylet and pharyngeal glands, the species is considered an obligate p...

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Autores principales:	Natsumi Kanzaki, Ryusei Tanaka, Robin M Giblin-Davis, Kerrie A Davies
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4148ac1794664127a513037b4d1f5849
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spelling	oai:doaj.org-article:4148ac1794664127a513037b4d1f58492021-11-18T08:15:06ZNew plant-parasitic nematode from the mostly mycophagous genus Bursaphelenchus discovered inside figs in Japan.1932-620310.1371/journal.pone.0099241https://doaj.org/article/4148ac1794664127a513037b4d1f58492014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24940595/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203A new nematode species, Bursaphelenchus sycophilus n. sp. is described. The species was found in syconia of a fig species, Ficus variegata during a field survey of fig-associated nematodes in Japan. Because it has a well-developed stylet and pharyngeal glands, the species is considered an obligate plant parasite, and is easily distinguished from all other fungal-feeding species in the genus based upon these characters. Although B. sycophilus n. sp. shares an important typological character, male spicule possessing a strongly recurved condylus, with the "B. eremus group" and the "B. leoni group" of the genus, it was inferred to be monophyletic with the "B. fungivorus group". The uniquely shaped stylet and well-developed pharyngeal glands is reminiscent of the fig-floret parasitic but paraphyletic assemblage of "Schistonchus". Thus, these morphological characters appear to be an extreme example of convergent evolution in the nematode family, Aphelenchoididae, inside figs. Other characters shared by the new species and its close relatives, i.e., lack of ventral P1 male genital papilla, female vulval flap, and papilla-shaped P4 genital papillae in males, corroborate the molecular phylogenetic inference. The unique biological character of obligate plant parasitism and highly derived appearance of the ingestive organs of Bursaphelenchus sycophilus n. sp. expands our knowledge of the potential morphological, physiological and developmental plasticity of the genus Bursaphelenchus.Natsumi KanzakiRyusei TanakaRobin M Giblin-DavisKerrie A DaviesPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 6, p e99241 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Natsumi Kanzaki Ryusei Tanaka Robin M Giblin-Davis Kerrie A Davies New plant-parasitic nematode from the mostly mycophagous genus Bursaphelenchus discovered inside figs in Japan.
description	A new nematode species, Bursaphelenchus sycophilus n. sp. is described. The species was found in syconia of a fig species, Ficus variegata during a field survey of fig-associated nematodes in Japan. Because it has a well-developed stylet and pharyngeal glands, the species is considered an obligate plant parasite, and is easily distinguished from all other fungal-feeding species in the genus based upon these characters. Although B. sycophilus n. sp. shares an important typological character, male spicule possessing a strongly recurved condylus, with the "B. eremus group" and the "B. leoni group" of the genus, it was inferred to be monophyletic with the "B. fungivorus group". The uniquely shaped stylet and well-developed pharyngeal glands is reminiscent of the fig-floret parasitic but paraphyletic assemblage of "Schistonchus". Thus, these morphological characters appear to be an extreme example of convergent evolution in the nematode family, Aphelenchoididae, inside figs. Other characters shared by the new species and its close relatives, i.e., lack of ventral P1 male genital papilla, female vulval flap, and papilla-shaped P4 genital papillae in males, corroborate the molecular phylogenetic inference. The unique biological character of obligate plant parasitism and highly derived appearance of the ingestive organs of Bursaphelenchus sycophilus n. sp. expands our knowledge of the potential morphological, physiological and developmental plasticity of the genus Bursaphelenchus.
format	article
author	Natsumi Kanzaki Ryusei Tanaka Robin M Giblin-Davis Kerrie A Davies
author_facet	Natsumi Kanzaki Ryusei Tanaka Robin M Giblin-Davis Kerrie A Davies
author_sort	Natsumi Kanzaki
title	New plant-parasitic nematode from the mostly mycophagous genus Bursaphelenchus discovered inside figs in Japan.
title_short	New plant-parasitic nematode from the mostly mycophagous genus Bursaphelenchus discovered inside figs in Japan.
title_full	New plant-parasitic nematode from the mostly mycophagous genus Bursaphelenchus discovered inside figs in Japan.
title_fullStr	New plant-parasitic nematode from the mostly mycophagous genus Bursaphelenchus discovered inside figs in Japan.
title_full_unstemmed	New plant-parasitic nematode from the mostly mycophagous genus Bursaphelenchus discovered inside figs in Japan.
title_sort	new plant-parasitic nematode from the mostly mycophagous genus bursaphelenchus discovered inside figs in japan.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/4148ac1794664127a513037b4d1f5849
work_keys_str_mv	AT natsumikanzaki newplantparasiticnematodefromthemostlymycophagousgenusbursaphelenchusdiscoveredinsidefigsinjapan AT ryuseitanaka newplantparasiticnematodefromthemostlymycophagousgenusbursaphelenchusdiscoveredinsidefigsinjapan AT robinmgiblindavis newplantparasiticnematodefromthemostlymycophagousgenusbursaphelenchusdiscoveredinsidefigsinjapan AT kerrieadavies newplantparasiticnematodefromthemostlymycophagousgenusbursaphelenchusdiscoveredinsidefigsinjapan
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New plant-parasitic nematode from the mostly mycophagous genus Bursaphelenchus discovered inside figs in Japan.

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