{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T14:11:02Z","timestamp":1790691062583,"version":"4.1.0"},"reference-count":83,"publisher":"Cambridge University Press (CUP)","license":[{"start":{"date-parts":[[2023,11,7]],"date-time":"2023-11-07T00:00:00Z","timestamp":1699315200000},"content-version":"unspecified","delay-in-days":310,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Helminthol."],"published-print":{"date-parts":[[2023]]},"abstract":"<jats:title>Abstract<\/jats:title>\n\t  <jats:p>During a survey of soil nematodes in 2022, a new species of the genus <jats:italic>Longidorus<\/jats:italic>, described here as <jats:italic>Longidorus zanjanensis<\/jats:italic> sp. nov., was discovered in the rhizosphere of <jats:italic>Astragalus<\/jats:italic> sp. in Zanjan Province, Iran. The new needle nematode is described and illustrated based on morphological, morphometric, and molecular traits. Further, its females are characterized by having a long body ranging 5.6\u20137.7 mm long, lip region anteriorly flattened and almost continuous or slightly offset by a depression with body contour, <jats:italic>ca<\/jats:italic> 16.5\u201318.5 \u03bcm wide, amphidial fovea pouch-like without basal lobes, guiding ring at 35\u201341 \u03bcm distance from the anterior end, and an odontostyle and odontophore ranging 102\u2013115 and 47\u201375 \u03bcm long, respectively. The pharyngeal bulb is 123\u2013153 \u03bcm long, female reproductive system didelphic\u2013amphidelphic containing sperm, vulva almost equatorial, located at 46.7\u201351.4% of body length, tail short, rounded to bluntly conoid, bearing two pairs of caudal pores and terminus widely rounded with distinct radial lines in hyaline region (39\u201350 \u03bcm long, c = 122.4\u2013189.4, c\u2019 = 0.6\u20130.8). Males are common, making up to 60% of the adults, and are functional, with spicules 68.0\u201380.0 \u03bcm long, as well as having 8\u201314 ventromedian copulatory supplements. All four juvenile life developmental stages were present, with the tail of first-stage juvenile conoid shape, dorso-ventrally curved with rounded terminus. The polytomous codes delimiting the new species are: A4-B3-C3-D3-E1-F34-G12-H1-I2-J1-K6. Morphologically, the new species comes close to eight known species of the genus, namely <jats:italic>L. apulus<\/jats:italic>, <jats:italic>L. armeniacae<\/jats:italic>, <jats:italic>L. crassus<\/jats:italic>, <jats:italic>L. kheirii<\/jats:italic>, <jats:italic>L. soosanae<\/jats:italic>, <jats:italic>L. proximus<\/jats:italic>, <jats:italic>L. pauli,<\/jats:italic> and <jats:italic>L. ferrisi.<\/jats:italic> The morphological differences between the new species and the aforementioned species are discussed. Molecular phylogenetic analyses based on D2-D3 of large subunit (LSU) and internal transcribed spacer 1 (ITS1) rRNA sequences indicate that <jats:italic>Longidorus zanjanensis<\/jats:italic> sp. nov. is closely related to <jats:italic>L. hyrcanus<\/jats:italic>, <jats:italic>L. soosanae<\/jats:italic>, and <jats:italic>L. elongatus.<\/jats:italic><\/jats:p>","DOI":"10.1017\/s0022149x23000664","type":"journal-article","created":{"date-parts":[[2023,11,7]],"date-time":"2023-11-07T10:05:00Z","timestamp":1699351500000},"source":"Crossref","is-referenced-by-count":3,"title":["A new needle nematode, <i>Longidorus zanjanensis<\/i> sp. nov. (Nematoda: Longidoridae) from north-western Iran"],"prefix":"10.1017","volume":"97","author":[{"given":"M.","family":"Asgari","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3902-7422","authenticated-orcid":false,"given":"A.","family":"Eskandari","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.","family":"Castillo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1776-8131","authenticated-orcid":false,"given":"J.E.","family":"Palomares-Rius","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2023,11,7]]},"reference":[{"key":"S0022149X23000664_r11","first-page":"153","article-title":"Nematode-virus plant interactions","volume":"16","author":"Brown","year":"1988","journal-title":"Nematologia Mediterranea"},{"key":"S0022149X23000664_r68","doi-asserted-by":"publisher","DOI":"10.1093\/bioinformatics\/btg180"},{"key":"S0022149X23000664_r25","first-page":"147","article-title":"Characterization and sequence variation in the rDNA region of six nematode species of the genus Longidorus (Nematoda)","volume":"36","author":"De Luca","year":"2004","journal-title":"Journal of Nematology"},{"key":"S0022149X23000664_r21","doi-asserted-by":"publisher","DOI":"10.1038\/nmeth.2109"},{"key":"S0022149X23000664_r8","doi-asserted-by":"publisher","DOI":"10.1016\/j.dib.2019.104658"},{"key":"S0022149X23000664_r23","doi-asserted-by":"publisher","DOI":"10.1079\/9781780641515.0179"},{"key":"S0022149X23000664_r26","first-page":"78","article-title":"Onderzoekingen over vrij in de aarde levende nematoden","volume":"2","author":"De Man","year":"1876","journal-title":"Tijdschrift Der Nederlandsche Dierkundige Vereeniging"},{"key":"S0022149X23000664_r46","doi-asserted-by":"publisher","DOI":"10.1163\/187529282X00358"},{"key":"S0022149X23000664_r56","doi-asserted-by":"publisher","DOI":"10.1163\/15685411-00002831"},{"key":"S0022149X23000664_r3","doi-asserted-by":"publisher","DOI":"10.1007\/s10658-021-02435-0"},{"key":"S0022149X23000664_r34","doi-asserted-by":"publisher","DOI":"10.1163\/1568541054192108"},{"key":"S0022149X23000664_r65","first-page":"104","article-title":"Longidorus ferrisi n. sp. from California Citrus","volume":"41","author":"Robbins","year":"2009","journal-title":"Journal of Nematology"},{"key":"S0022149X23000664_r13","doi-asserted-by":"publisher","DOI":"10.1007\/s10658-019-01862-4"},{"key":"S0022149X23000664_r50","doi-asserted-by":"publisher","DOI":"10.1163\/187529273X00457"},{"key":"S0022149X23000664_r30","doi-asserted-by":"publisher","DOI":"10.1111\/j.1744-7348.1967.tb04497.x"},{"key":"S0022149X23000664_r70","first-page":"33","article-title":"Longidorus artemisiae sp. n. 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