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Morphological and molecular characterisation of Xiphinema pedrami sp. nov. and X. basiri Siddiqi 1959 (Nematoda: Longidoridae) from southern Iran
Published online by Cambridge University Press: 05 September 2025
Abstract
Two Xiphinema species, one new and one known, were found from Bushehr province, southern Iran, and are herein described based on morphological and molecular data. These include Xiphinema pedrami sp. nov. and X. basiri, both belonging to the ‘Xiphinema non-americanum group’. The new dagger nematode is characterised by a body length of 3.54–5.00 mm, a lip region separated from the rest of body by a depression, odontostyle 128–148 μm long, 60–89 μm long odontophore, guiding ring at 107–138 μm from anterior end, female tail rounded to dorsally more convex with small bulge and four juvenile stages. Males have one pair of cloacal and three to five ventromedian single supplements. The new species belongs to morphospecies Xiphinema non-americanum group 5, characterised by having two equally developed female genital branches with uterine differentiation in the form of pseudo-Z-organ along with the rhomboid-shaped crystalloid bodies, and a short, rounded tail ending in a peg. The polytomous identification codes of the new species are A4, B2, C5a5b, D6, E56, F4(5), G23, H2, I34, J5a5b, K3, L2. Morphologically, the new species comes close to several known species (namely, X. andalusiense, X. artemisiae, X. baetica, X. hyrcaniense, X. ingens, X. macroacanthum and X. pseudocoxi) belonging to morphospecies group 5. The morphological differences of the new species and the aforementioned species are discussed. The second recovered species, Xiphinema basiri, belongs to the same group and has a pseudo-Z-organ in the shape of globular bodies close to pars dilatata uterus and short, conical, distinctly digitate tail. Integrative diagnosis was completed using molecular data obtained from partial sequences of the D2-D3 region of 28S rDNA, ITS1 rDNA, 18S rDNA, and COI mtDNA genes.
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References
Ahmed, M and Holovachov, O (2021) Twenty years after De Ley & Blaxter—How far did we progress in understanding the phylogeny of the phylum Nematoda? Animals 11(12), 3479. https://doi.org/10.3390/ani11123479.CrossRefGoogle Scholar
Almarales Antúnez, M and Gandarilla Basterrechea, H (2011) Citrus sinensis (L.) Osbeck, nuevo hospedante de Xiphinema basiri Siddiqi en Cuba. Fitosanidad 15(3), 185–186.Google Scholar
Andrássy, I (2009) Free-living nematodes of Hungary, III. In Csuzdi, C and Mahunka, S (eds), Pedozoologica Hungarica n° 5. Budapest: Hungarian Natural History Museum and Systematic Zoology Research Group of the Hungarian Academy of Sciences.Google Scholar
Archidona-Yuste, A, Cai, R, Cantalapiedra-Navarrete, C, Carreira, JA, Rey, A, Viñegla, B, Liébanas, G, Palomares-Rius, JE and Castillo, P (2020a) Morphostatic speciation within the dagger nematode Xiphinema hispanum-complex species (Nematoda: Longidoridae). Plants 9(12), 1649. https://doi.org/10.3390/plants9121649.CrossRefGoogle Scholar
Archidona-Yuste, A, Navas-Cortés, JA, Cantalapiedra-Navarrete, C, Palomares-Rius, JE and Castillo, P (2016a) Remarkable diversity and prevalence of dagger nematodes of the genus Xiphinema Cobb, 1913 (Nematoda: Longidoridae) in olives revealed by integrative approaches. PLoS ONE 11(11), e0165412. https://doi.org/10.1371/journal.pone.0165412.CrossRefGoogle Scholar
Archidona-Yuste, A, Navas-Cortés, JA, Cantalapiedra-Navarrete, C, Palomares-Rius, JE and Castillo, P (2016b) Unravelling the biodiversity and molecular phylogeny of needle nematodes of the genus Longidorus (Nematoda: Longidoridae) in olive and a description of six new species. PLoS ONE 11(1), e0147689. https://doi.org/10.1371/journal.pone.0147689.CrossRefGoogle Scholar
Archidona-Yuste, A, Navas-Cortés, JA, Cantalapiedra-Navarrete, C, Palomares-Rius, JE and Castillo, P (2016c) Molecular phylogenetic analysis and comparative morphology resolve two new species of olive-tree soil related dagger nematodes of the genus Xiphinema (Dorylaimida: Longidoridae) from Spain. Invertebrate Systematics 30(6), 547–565. https://doi.org/10.1071/IS16002.CrossRefGoogle Scholar
Archidona-Yuste, A, Navas-Cortés, JA, Cantalapiedra-Navarrete, C, Palomares-Rius, JE and Castillo, P (2016d) Cryptic diversity and species delimitation in the Xiphinema americanum-group complex (Nematoda: Longidoridae) as inferred from morphometrics and molecular markers. Zoological Journal of the Linnean Society 176(2), 231–265. https://doi.org/10.1111/zoj.12316.CrossRefGoogle Scholar
Archidona-Yuste, A, Wiegand, T, Castillo, P and Navas-Cortés, JA (2019) Dataset on the diversity of plant-parasitic nematodes in cultivated olive trees in southern Spain. Data in Brief 27, 104658. https://doi.org/10.1016/j.dib.2019.104658.CrossRefGoogle ScholarPubMed
Archidona-Yuste, A, Wiegand, T, Castillo, P and Navas-Cortés, JA (2020b) Spatial structure and soil properties shape local community structure of plant-parasitic nematodes in cultivated olive trees in southern Spain. Agriculture, Ecosystems & Environment 287, 106688. https://doi.org/10.1016/j.agee.2019.106688.CrossRefGoogle Scholar
Bowles, J, Blair, D and McManus, DP (1992) Genetic variants within the genus Echinococcus identified by mitochondrial DNA sequencing. Molecular and Biochemical Parasitology 54(2), 165–173. https://doi.org/10.1016/0166-6851(92)90109-W.CrossRefGoogle ScholarPubMed
Cai, R, Archidona-Yuste, A, Cantalapiedra-Navarrete, C, Palomares-Rius, JE and Castillo, P (2020) New evidence of cryptic speciation in the family Longidoridae (Nematoda: Dorylaimida). Journal of Zoological Systematics and Evolutionary Research 58(4), 869–899. https://doi.org/10.1111/jzs.12393.CrossRefGoogle Scholar
Cai, R, Archidona-Yuste, A, Cantalapiedra-Navarrete, C, Palomares-Rius, JE, Zheng, J and Castillo, P (2019) Integrative taxonomy of Xiphinema histriae and Xiphinema lapidosum from Spain. Journal of Nematology 51, e2019–e2037. https://doi.org/10.21307/jofnem-2019-037.CrossRefGoogle ScholarPubMed
Cai, R, Maria, M, Barsalote, EM, Subbotin, SA and Zheng, J (2018) Description of Xiphinema hangzhouense sp. n. (Nematoda: Longidoridae) from the rhizosphere of Magnolia grandiflora in Hangzhou, Zhejiang Province, China. Nematology 20(1), 67–80. https://doi.org/10.1163/15685411-00003125.CrossRefGoogle Scholar
Chizhov, VN, Tiev, RA and Turkina, AY (1986) Two new species of Xiphinema (Nematoda, Longidoridae) from the northern Caucasus. Zoologicheskiĭ Zhurnal 65, 932–935.Google Scholar
Cid del Prado-Vera, I, Ferris, H and Subbotin, SA (2024) Description of Xiphinema ficusi sp. n. (Nematoda: Longidoridae) and molecular characterisation of some Xiphinema species from Mexico. Nematology 26(4), 463–478. https://doi.org/10.1163/15685411-bja10319.Google Scholar
Cobb, NA (1913) New nematode genera found inhabiting fresh water and non-brackish soils. Journal of the Washington Academy of Sciences 3, 432–444. https://doi.org/10.5962/bhl.part.20323.CrossRefGoogle Scholar
Cohn, E and Sher, SA (1972) A contribution to the taxonomy of the genus Xiphinema Cobb, 1913. Journal of Nematology 4(1), 36–65.Google Scholar
Coomans, A (1996) Phylogeny of the Longidoridae. Russian Journal of Nematology 4(1), 51–60.Google Scholar
Coomans, A, Huys, R, Heyns, J and Luc, M (2001) Character analysis, phylogeny, and biogeography of the genus Xiphinema Cobb, 1973 (Nematoda, Longidoridae). Annales du Musée Royal de l’Afrique Centrale (Zoologie), Tervuren, Belgique 287, 1–239.Google Scholar
Dalmasso, A (1969) Étude anatomique et taxonomique des genres Xiphinema, Longidorus et Paralongidorus (Nematoda: Dorylaimida). Mémoires du Muséum National d’Histoire Naturelle, Nouvelle Série, A. Zoologie 61, 34–82.Google Scholar
Darriba, D, Taboada, GL, Doallo, R and Posada, D (2012) jModelTest 2: More models, new heuristics and parallel computing. Nature Methods 9(8), 772. https://doi.org/10.1038/nmeth.2109.CrossRefGoogle ScholarPubMed
De Grisse, A (1969) Redescription ou modifications de quelques techniques utililisées dans l’étude des nematodes phytoparasitaires. Mededelingen van de Rijksfaculteit Landbouwwetenschappen Gent 34, 351–369.Google Scholar
De Ley, P, Felix, M-A, Frisse, L, Nadler, S, Sternberg, P and Thomas, WK (1999) Molecular and morphological characterisation of two reproductively isolated species with mirror-image anatomy (Nematoda: Cephalobidae). Nematology 1(6), 591–612. https://doi.org/10.1163/156854199508559.CrossRefGoogle Scholar
Decraemer, W and Geraert, E (2013) Ectoparasitic nematodes. In Perry, R and Moens, M (eds), Plant Nematology, 2nd edn. Wallingford, UK: CABI Publishing, 179–214.CrossRefGoogle Scholar
Decraemer, W and Robbins, RT (2007) The who, what and where of Longidoridae and Trichodoridae. Journal of Nematology 39(4), 295–297.Google ScholarPubMed
Fadakar, S, Pourjam, E, Barsi, L and Pedram, M (2021) A new species of the genus Xiphinema Cobb 1913 (Nematoda: Longidoridae) from north and northwest Iran. European Journal of Plant Pathology 160, 557–574. https://doi.org/10.1007/s10658-021-02264-1.CrossRefGoogle Scholar
Fekrat, F, Ghaderi, R, Pourjam, E, Castillo, P and Pedram, M (2024) Redescription of Xiphinema artemisiae Chizhov, Tiev & Turkina, 1986 (Dorylaimida: Longidoridae): New occurrence in Iran. Nematology 26(3), 351–362. https://doi.org/10.1163/15685411-bja10313.CrossRefGoogle Scholar
Flegg, JJM (1967) Extraction of Xiphinema and Longidorus species from soil by a modification of Cobb’s decanting and sieving technique. Annals of Applied Biology 60(3), 429–437. https://doi.org/10.1111/j.1744-7348.1967.tb04497.x.CrossRefGoogle Scholar
Ghaemi, R, Pourjam, E, Pedram, M, Robbins, RT, Ye, W and Decraemer, W (2012) Morphological and molecular characterization of Xiphinema zagrosense sp. n. (Dorylaimida: Longidoridae) from Zagros mountains. Nematology 14(4), 445–455. https://doi.org/10.1163/156854111X612171.CrossRefGoogle Scholar
Gill, Z and Firoza, K (2014) Nematodes associated with datepalm orchards of Kairpur district Sindh, Pakistan. Pakistan Journal of Nematology 32(1), 113–119.Google Scholar
Gu, J, Ye, W and Munawar, M (2022) Description of Xiphinema pupureum n. sp. (Nematoda: Longidoridae), a new Xiphinema americanum group species detected from the rhizosphere of Ilex purpurea from Japan. Nematology 25(1), 91–105. https://doi.org/10.1163/15685411-bja10208.CrossRefGoogle Scholar
Gutiérrez-Gutiérrez, C, Bravo, MA, Santos, MT, Vieira, P and Mota, M (2016) An update on the genera Longidorus, Paralongidorus and Xiphinema (Family Longidoridae) in Portugal. Zootaxa 4189(1), 99–114. https://doi.org/10.11646/zootaxa.4189.1.4.CrossRefGoogle Scholar
Gutiérrez-Gutiérrez, C, Cantalapiedra-Navarrete, C, Remesal, E, Palomares-Rius, JE, Navas-Cortés, JA and Castillo, P (2013) New insight into the identification and molecular phylogeny of dagger nematodes of the genus Xiphinema (Nematoda: Longidoridae) with description of two new species. Zoological Journal of the Linnean Society 169(3), 548–579. https://doi.org/10.1111/zoj.12071.CrossRefGoogle Scholar
Gutiérrez-Gutiérrez, C, Palomares-Rius, JE, Cantalapiedra-Navarrete, C, Landa, BB and Castillo, P (2011) Prevalence, polyphasic identification, and molecular phylogeny of dagger and needle nematodes infesting vineyards in southern Spain. European Journal of Plant Pathology 129, 427–453. https://doi.org/10.1007/s10658-010-9705-y.CrossRefGoogle Scholar
Gutiérrez-Gutiérrez, C, Palomares-Rius, JE, Cantalapiedra-Navarrete, C, Landa, BB, Esmenjaud, D and Castillo, P (2010) Molecular analysis and comparative morphology to resolve a complex of cryptic Xiphinema species. Zoologica Scripta 39(5), 483–498. https://doi.org/10.1111/j.1463-6409.2010.00437.x.CrossRefGoogle Scholar
Hall, TA (1999) BioEdit: A user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucleic Acids Symposium Series 41, 95–98.Google Scholar
Holterman, M, van derWurff, A, van den Elsen, S, van Megen, H, Bongers, T, Holovachov, O, Bakker, J and Helder, J (2006) Phylum-wide analysis of SSU rDNA reveals deep phylogenetic relationships among nematodes and accelerated evolution toward crown clades. Molecular Biology and Evolution 23(9), 1792–1800. https://doi.org/10.1093/molbev/msl044.CrossRefGoogle ScholarPubMed
Jahanshahi Afshar, F, Pedram, M and Mobasseri, M (2021) Description of Xiphinema persicum n. sp. (Nematoda: Longidoridae), a X. americanum-group species from Iran. European Journal of Plant Pathology 159, 783–797. https://doi.org/10.1007/s10658-021-02201-2.Google Scholar
Jahanshahi Afshar, F, Shahryari, F, Gharibzadeh, F, Pourjam, E and Pedram, M (2019) Description of Xiphinema azarbaijanense n. sp. (Nematoda; Longidoridae) from West Azarbaijan province, northwestern Iran. European Journal of Plant Pathology 155, 417–434. https://doi.org/10.1007/s10658-019-01776-1.CrossRefGoogle Scholar
Jahanshahi Afshar, F, Shahryari, F, Mokhtassi-Bidgoli, A, Castillo, P, Mirzaie Fouladvand, Z and Pedram, M (2020) Occurrence of Xiphinema santos Lamberti, Lemos, Agostinelli & D’Addabo 1993 (Nematoda: Longidoridae), a X. americanum-group member in Iran. European Journal of Plant Pathology 157, 281–291. http://doi.org/10.1007/s10658-020-01980-4.CrossRefGoogle Scholar
Katoh, K, Rozewicki, J and Yamada, KD (2019) MAFFT online service: Multiple sequence alignment, interactive sequence choice and visualization. Briefings in Bioinformatics 20(4), 1160–1166. https://doi.org/10.1093/bib/bbx108.CrossRefGoogle ScholarPubMed
Knobloch, NA and Laughlin, CW (1973) A collection of plant parasitic nematodes (Nematoda) from Mexico with descriptions of three new species. Nematologica 19(2), 205–217. https://doi.org/10.1163/187529273X00330.CrossRefGoogle Scholar
Lamberti, F, Castillo, P, Gomez-Barcina, A and Agostinelli, A (1992) Descriptions of six new species of Xiphinema (Nematoda, Dorylaimida) from the Mediterranean region. Nematologia Mediterranea 20, 125–139.Google Scholar
Lamberti, F, Hockland, S, Agostinelli, A, Moens, M and Brown, DJF (2004) The Xiphinema americanum group. 3. Keys to species identification. Nematologia Mediterranea 32, 53–56.Google Scholar
Lamberti, F, Molinari, S, Moens, M and Brown, DJF (2000) The Xiphinema americanum-group. I. Putative species, their geographical occurrence and distribution, and regional polytomous identification keys for the group. Russian Journal of Nematology 8, 65–84.Google Scholar
Lamberti, F, Roca, F and Agostinelli, A (1989) Xiphinema macroacanthum (Nematoda, Dorylaimida) a new species from southern Italy closely resembling X. ingens Luc & Dalmasso, 1964. Nematologia Mediterranea 17, 115–119.Google Scholar
Larget, B and Simon, DL (1999) Markov chain Monte Carlo algorithms for the Bayesian analysis of phylogenetic trees. Molecular Biology and Evolution 16(6), 750–759. https://doi.org/10.1093/oxfordjournals.molbev.a026160.CrossRefGoogle Scholar
Loof, PAA and Coomans, A (1972) The oesophageal gland nuclei of Longidoridae (Dorylaimida). Nematologica 18(2), 213–233. https://doi.org/10.1163/187529272X00458.CrossRefGoogle Scholar
Loof, PAA and Luc, M (1990) A revised polytomous key for the identification of species of the genus Xiphinema Cobb, 1913 (Nematoda: Longidoridae) with exclusion of the X. americanum-group. Systematic Parasitology 16, 35–66. https://doi.org/10.1007/BF00009600.CrossRefGoogle Scholar
Loof, PAA and Luc, M (1993) A revised polytomous key for the identification of species of the genus Xiphinema Cobb, 1913 (Nematoda: Longidoridae) with exclusion of the X. americanum-group: Supplement 1. Systematic Parasitology 24, 185–189. https://doi.org/10.1007/BF00010531.CrossRefGoogle Scholar
Loof, PAA, Luc, M and Baujard, P (1996) A revised polytomous key for the identification of species of the genus Xiphinema Cobb, 1913 (Nematoda: Longidoridae) with exclusion of the X. americanum-group: Supplement 2. Systematic Parasitology 33, 23–29. https://doi.org/10.1007/BF00009717.Google Scholar
Luc, M and Dalmasso, A (1964) Trois nouveaux Xiphinema associés à la vigne (Nematoda: Dorylaimidae). Nematologica 9(4) 531–541. https://doi.org/10.1163/187529263X00610.Google Scholar
Macfarlane, SA (2003) Molecular determinants of the transmission of plant viruses by nematodes. Molecular Plant Pathology 4(3), 211–215. https://doi.org/10.1046/j.1364-3703.2003.00164.x.CrossRefGoogle ScholarPubMed
Macfarlane, SA, Neilson, R and Brown, DJF (2002) Nematodes. Advances in Botanical Research 36, 169–198. https://doi.org/10.1016/s0065-2296(02)36063-4.CrossRefGoogle Scholar
Micoletzky, H (1927) Neue und seltene freilebende Nematoden aus dem Wolgagebiet (Kama). Zoologischer Anzeiger 73, 113–123.Google Scholar
Mirzaei, S, Pourjam, E and Pedram, M (2015) Molecular characterisation of, and new data on, two populations of Xiphinema ingens Luc & Dalmasso, 1964 (Nematoda: Longidoridae) from Iran. Nematology 17(2), 125–138. https://doi.org/10.1163/15685411-00002858.CrossRefGoogle Scholar
Mirzaie Fouladvand, Z, Pourjam, E, Castillo, P and Pedram, M (2019) Genetic diversity, and description of a new dagger nematode, Xiphinema afratakhtehnsis sp. nov., (Dorylaimida: Longidoridae) in natural forests of southeastern Gorgan, northern Iran. PLoS ONE 14(5), e0214147. https://doi.org/10.1371/journal.pone.0214147.CrossRefGoogle Scholar
Mobasseri, M, Hutchinson, MC, Jahanshahi Afshar, F and Pedram, M (2019) New evidence of nematode-endosymbiont bacteria coevolution based on one new and one known dagger nematode species of Xiphinema americanum-group (Nematoda, Longidoridae). PLoS ONE 14(6), e0217506. https://doi.org/10.1371/journal.pone.0217506.CrossRefGoogle ScholarPubMed
Monemi, S, Behdani, M, Mahdikhani-Moghadam, E, Amirzadi, N, Atighi, MR, Ye, W, Jahanshahi Afshar, F and Pedram, M (2024) Data on four species of Longidorus Micoletzky, 1922 (Nematoda: Longidoridae) from southern and southeastern Iran, including description of a new species. Journal of Helminthology 98, e42. https://doi.org/10.1017/S0022149X24000282.CrossRefGoogle ScholarPubMed
Naghavi, A, Niknam, G and Vazifeh, N (2022) A new species of Xiphinema americanum group (Nematoda: Longidoridae) from Iran, with additional data on three known species. Systematic Parasitology 99(5), 545–555. https://doi.org/10.1007/s11230-022-10044-6.CrossRefGoogle ScholarPubMed
Oliveira, CMG, Hübschen, J, Brown, DFJ, Ferraz, LCCB, Wright, F and Neilson, R (2004) Phylogenetic relationships among Xiphinema and Xiphidorus nematode species from Brazil inferred from 18S rDNA sequences. Journal of Nematology 36(2), 153–159.Google ScholarPubMed
Palomares-Rius, JE, Cantalapiedra-Navarrete, C and Castillo, P (2014) Cryptic species in plant-parasitic nematodes. Nematology 16(10), 1105–1118. https://doi.org/10.1163/15685411-00002831.CrossRefGoogle Scholar
Palomares-Rius, JE, Cantalapiedra-Navarrete, C, Archidona-Yuste, A, Subbotin, SA and Castillo, P (2017) The utility of mtDNA and rDNA for barcoding and phylogeny of plant-parasitic nematodes from Longidoridae (Nematoda, Enoplea). Scientific Reports 7, 10905. https://doi.org/10.1038/s41598-017-11085-4.CrossRefGoogle ScholarPubMed
Pearse, AS (1942) Introduction to Parasitology, 1st edn. Springfield-Baltimore, MD: Charles C. Thomas Company.CrossRefGoogle Scholar
Pedram, M (2018) Nematodes of the family Longidoridae. In Ghaderi, R, Kashi, L and Karegar, A (eds), Plant-Parasitic Nematodes in Iran. Shiraz: Marjaeelm Publishing in collaboration with the Iranian Society of Nematology, 627–666.Google Scholar
Pedram, M, Pourjam, E, Robbins, RT, Ye, W, Atighi, MR and Decraemer, W (2012) Morphological and molecular characterisation of Xiphinema mazandaranense n. sp. (Dorylaimida: Longidoridae), a new member of the Xiphinema pyrenaicum species complex. Nematology 14(1), 109–119. https://doi.org/10.1163/138855411X580768.Google Scholar
Peraza-Padilla, W, Cantalapiedra-Navarrete, C, Zamora-Araya, T, Palomares-Rius, JE, Castillo, P and Archidona-Yuste, A (2018) A new dagger nematode, Xiphinema tica n. sp. (Nematoda: Longidoridae), from Costa Rica with updating of the polytomous key of Loof and Luc (1990). European Journal of Plant Pathology 150, 73–90. https://doi.org/10.1007/s10658-017-1253-2.CrossRefGoogle Scholar
Potts, FA (1932) The phylum Nematoda. In Borradaile, LA and Potts, FA (eds), The Invertebrata. A Manual for the Use of Students. New York: The Macmillan Company, 214–227.Google Scholar
Poureskandarian, M, Pourjam, E and Pedram, M (2023) New evidence on cryptic speciation in soil-inhabiting nematodes, with morphological and molecular characterisation of Xiphinema sangesarense n. sp. (Dorylaimida: Longidoridae) from north-central mountains of Iran. Nematology 25(5), 549–563. https://doi.org/10.1163/15685411-bja10238.CrossRefGoogle Scholar
Rambaut, A (2018) FigTree v1.4.4, a graphical viewer of phylogenetic trees. Available at http://tree.bio.ed.ac.uk/software/figtree/ (accessed 10 March 2024).Google Scholar
Rashidifard, M, Marais, M, Daneel, MS, Mienie, CMS and Fourie, H (2019) Molecular characterisation of Meloidogyne enterolobii and other Meloidogyne spp. from South Africa. Tropical Plant Pathology 44, 213–224. https://doi.org/10.1007/s40858-019-00281-4.CrossRefGoogle Scholar
Robbins, RT and Brown, DJF (1991) Comments on the taxonomy, occurrence and distribution of Longidoridae (Nematoda) in North America. Nematologica 37, 395–419. https://doi.org/10.1163/187529291X00402.Google Scholar
Robbins, RT, Brown, DJF, Halbrendt, JM and Vrain, TC (1996) Compendium of juvenile stages of Xiphinema species (Nematoda: Longidoridae). Russian Journal of Nematology 4(2), 163–171.Google Scholar
Ronquist, F and Huelsenbeck, JP (2003) MRBAYES 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19, 1572–1574. https://doi.org/10.1093/bioinformatics/btg180.CrossRefGoogle ScholarPubMed
Roshan-Bakhsh, A, Pourjam, E, Pedram, M, Robbins, RT and Decraemer, W (2014) Description of Xiphinema castilloi sp. n. (Dorylaimida: Longidoridae) from Iran and its phylogenetic relationships. Nematology 16(3), 359–368. https://doi.org/10.1163/15685411-00002770.CrossRefGoogle Scholar
Roy, TK (1973) Notes on the pathogenicity of Xiphinema basiri Siddiqi, 1959 and its host records. Indian Journal of Nematology 3, 161–163.Google Scholar
Scheck, HJ (2022) California pest rating proposal for Xiphinema basiri Siddiqi, 1959 dagger nematode. California Department of Food and Agriculture, Sacramento, California, USA. https://blogs.cdfa.ca.gov/Section3162/wp-content/uploads/2022/07/Xiphinemabasiri_ADA_PRP.pdf.Google Scholar
Siddiqi, MR (1959) Studies on Xiphinema spp. (Nematoda: Dorylaimoidea) from Aligarh (north India), with comments on the genus Longidorus Micoletzky, 1922. Proceedings of the Helminthological Society of Washington 26(2), 151–163.Google Scholar
Sturhan, D (1984) Untersuchungen über den Xiphinema coxi-komplex (Nematoda: Longidoridae). Nematologica 30(3), 305–323. https://doi.org/10.1163/187529284X00211.CrossRefGoogle Scholar
Swart, A and Quénéhervé, P (1998) The genus Xiphinema (Nematoda: Longidoridae) in Guyane and Martinique. Fundamental and Applied Nematology 21(5), 581–604.Google Scholar
Taylor, CE and Brown, DJF (1997) Nematode Vectors of Plant Viruses, 1st edn. Wallingford, UK: CAB International.Google Scholar
Thorne, G (1935) Notes on free-living and plant-parasitic nematodes. II. Higher classification groups of Dorylaimoidea. Proceedings of the Helminthological Society of Washington 2, 96–98.Google Scholar
Thorne, G (1939) A monograph of the nematodes of the superfamily Dorylaimoidea. Capita Zoologica 8, 1–261.Google Scholar
Tzortzakakis, EA, Archidona-Yuste, A, Cantalapiedra-Navarrete, C, Nasiou, E, Lazanaki, MS, Kabourakis, EM, Palomares-Rius, JE and Castillo, P (2014) Integrative diagnosis and molecular phylogeny of dagger and needle nematodes of olives and grapevines in the island of Crete, Greece, with description of Xiphinema cretense n. sp. (Nematoda, Longidoridae). European Journal of Plant Pathology 140, 563–590. https://doi.org/10.1007/s10658-014-0488-4.CrossRefGoogle Scholar
Vazifeh, N, Niknam, G, Jabbari, H and Naghavi, A (2019) Description of a new dagger nematode, Xiphinema barooghii n. sp. (Nematoda: Longidoridae) and additional data on the three known species of the genus from northwest of Iran. Journal of Nematology 51(1), e2019 –e2007. https://doi.org/10.21307/jofnem-2019-007.CrossRefGoogle Scholar
Vrain, TC, Wakarchuk, DA, Lévesque, AC and Hamilton, RI (1992) Intraspecific rDNA restriction fragment length polymorphism in the Xiphinema americanum group. Fundamental and Applied Nematology 15(6), 563–573.Google Scholar
Whitehead, AG and Hemming, JR (1965) A comparison of some quantitative methods of extracting small vermiform nematodes from soil. Annals of Applied Biology 55(1), 25–38. https://doi.org/10.1111/j.1744-7348.1965.tb07864.x.CrossRefGoogle Scholar