Abstract
Three species of Plectus Bastian, 1865 viz., P. aquatilis and P. pusillus from Kerman province and P. velox from Alborz province, Iran are described and illustrated. Partial sequences of 18S region of ribosomal DNA gene were amplified for P. aquatilis and P. pusillus. The Blast results of population of P. aquatilis from Iran showed 8–10 nucleotides differences with populations of the same species (AF036602; GQ892827; AY284700) reported from the UK, Belgium and The Netherlands, respectively. Whereas Iranian population of P. pusillus showed 14–16 nucleotides differences with P. cf. pusillus (AY284705; AY284704) reported from The Netherlands. Molecular analysis revealed close relationship of the Iranian plectids with P. cf. parvus (AY284699) reported from The Netherlands. Phylogenetic relationships with other related species in the genus Plectus and closely related genera that are available in the GenBank are given.
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References
Andrássy I. 1985. The genus Plectus Bastian, 1865 and its nearest relatives (Nematoda: Plectidae). Acta Zool. Hung. 31: 1–52.
Andrassy I. 1998. Nematodes in the Sixth Continent. J. Nematode Morphol. Syst. 1: 107–186.
Andrássy I. 2005. The free-living nematode fauna of Hungary (Nematoda — Errantia), I. In: Csuzdi Cs. & Mahunka S. (eds), Pedozoologia Hungarica, 3. Hungarian Natural History Museum and Sytematic Zoology Research Group of the Hungarian Academy of Science, Budapest, 518 pp.
Baermann G. 1917. Eine einfache Methode zur Auffindung von Ankylostomum (Nematoden) Larven in Erdproben. Geneeskunding Tijdschrift Nederland-Indië 57: 131–137.
Bastian H.C. 1865. Monograph on the Anguillulidae, or free Nematoids, Marine, Land, and Freshwater; with Descriptions of 100 new Species. Trans. Linn. Soc. London Zool. 25: 73–184. DOI: 10.5962/bhl.title.14153
Blaxter M.L., De Ley P., Garey J.R., Liu L.X., Scheldeman P., Vierstraete A., Vanfleteren J.R., Machey L.Y., Dorris M., Frisse L.M., Vida J.T. & Thomas W.K. 1998. A molecular evolutionary framework for the phylum Nematoda. Nature 392(6671): 71–75. DOI: 10.1038/32160
Cobb N.A. 1893. Nematode worms found attacking sugar cane. Agricultural Gazette of New South Wales 4: 808–833.
De Grisse A. 1969. Redescription ou modifications de quelques techniques utililisees dans l’etude des nematodes phytoparasitaires. Mededelingen van de Rijksfaculteit Landbouwwetenschappen Gent 34: 351–369.
De Ley P. & Blaxter M. 2004. A new system for Nematoda: combining morphological characters with molecular trees, and translating clades into ranks and taxa, pp. 633–653. In: Cook R.C. & Hunt D.J. (eds), Proceeding of the Fourth International Congress of Nematology Book Series: Nematology Monographs and Perspectives 2.
De Ley P. & Coomans A. 1994. Terrestrial nematodes from the Galápagos Archipelago IV: The genus Plectus Bastian, 1865, with description of three new species (Leptolaimina: Plectidae). Bull. Inst. Roy. Sci. Natur. Belg. Biol. 64: 43–70.
Félix M.A., De Ley P., Sommer R.J., Frisse L., Nadler S.A., Thomas W.K., Vanfleteren J. & Sternberg P.W. 2000. Evolution of vulva development in the Cephalobina (Nematoda). Develop. Biol. 221(1): 68–86. DOI: 10.1006/dbio.2000.9665
Gadea E. 1973. Sobre la filogenia interna de los Nematodos. Publicación del Instituto de Biologiá Aplicada, Barcelona 54: 87–92
Holovachov O. 2004. Morphology, phylogeny and evolution of the superfamily P1ectoidea Örley, 1880 (Nematoda: P1ectida). Ann. Zool. (Warszaw) 54(4): 631–672. DOI: 10.3161/0003454043651870
Holovachov O. & Boström S. 2010. Identification of Plectida (Nematoda). EUMAINE, Gent and Nematology, UC Riverside, 98 pp. ISBN: 1453875727, 9781453875728
Holovachov O., Boström S. & Mundo-Ocampo M. 2009. Morphology, molecular characterisation and systematic position of Hemiplectus muscorum Zell, 1991 (Nematoda: Plectida). Nematology 11: 719–737. DOI: 10.1163/156854109X4 04580
Holterman M., Holovachov O., van den Elsen S., van Megen H., Bongers T., Bakker J. & Helder J. 2008. Small subunit ribosomal DNA-based phylogeny of basal Chromadoria (Nematoda) suggests that transitions from marine to terrestrial habitats (and vice versa) require relatively simple adaptations. Mol. Phylogenet. Evol. 48: 758–763. DOI: 10.1016/j.ympev.2008.04.033
Holterman M., van der Wurff A., van den Elsen S., van Megen H., Bongers T., Holovachov O., Bakker J. & Helder J. 2006. Phylum-wide analysis of SSU rDNA reveals deep phylogenetic relationships among nematodes and accelerated evolution toward crown clades. Mol. Biol. Evol. 23(9): 1792–1800. DOI: 10.1093/molbev/mls044
Kagoshima H., Kito K., Aizu T., Shin-I T., Kanda H., Kobayashi S., Toyoda A., Fujiyama A., Kohara Y., Convey P. & Niki H. 2012. Multi-decadal survival of an Antarctic nematode, Plectus murrayi, in a -20 degree C stored moss sample. Cryoletters 33(4): 280–288.
Kiontke K., Barriere A., Kolotuev I., Podbilewicz B., Sommer R., Fitch D.H. & Felix M.A. 2007. Trends, stasis and drift in the evolution of nematode vulva development. Curr. Biol. 17(22): 1925–1937. DOI: 10.1016/j.cub.2007.10.061
Maggenti A.R. 1961. Revision of the genus Plectus (Nematoda: Plectidae). Proc. Helminthol. Soc. Wash. 28(2): 139–166.
McCarthy C. 1997. Chromas, Version 1.41, Griffith University, Brisbane.
Meldal B.H., Debenham N.J., De Ley P., De Ley I.T., Vanfleteren J.R., Vierstraete A.R., Bert W., Borgonie G., Moens T., Tyler P.A., Austen M.C., Blaxter M.L., Rogers A.D. & Lambshead P.J. 2007. An improved molecular phylogeny of the Nematoda with special emphasis on marine taxa. Mol. Phylogenet. Evol. 42(3): 622–636. DOI: 10.1016/j.ympev.2006.08.025
Örley L. 1880. Az Anguillulidák magánrajza. (Monographie der Anguilluliden). Természetrajzi Füzetek, Franklin-Ta’rsulat Könyvnyomda’ja, Budapest 4(P 1–2): 16–150.
Ronquist F. & Huelsenbeck J. 2003. MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19(12): 1572–1574. DOI: 10.1093/bioinformatics/btg180
Tahseen Q., Baniyamuddin M., Hussain A. & Ahmad W. 2004. Description of two new species of Plectinae (Nematoda: Araeolaimida) from India. Nematology 6(Part 5): 755–764. DOI: 10.1163/1568541042843504
Tahseen Q. & Mustaqim M. 2011. Descriptions of six known species of Plectus Bastian, 1865 (Nematoda, Plectida, Plectidae) from India with a discussion on the taxonomy of the genus. Zootaxa 3205: 1–25.
Tamura K., Peterson D., Peterson N., Stecher G., Nei M. & Kumar S. 2011. MEGA5: Molecular Evolutionary Genetics Analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods. Mol. Biol. Evol. 28(10): 2731–2739. DOI: 10.1093/molbev/msr121
van Megen H., van den Elsen S., Holterman M., Karssen G., Mooyman P., Bongers T., Holovachov A., Bakker J. & Helder J. 2009. A phylogenetic tree of nematodes based on about 1200 full-length small subunit ribosomal DNA sequences. Nematology 11: 927–950. DOI: 10.1163/156854109X456862
Zell H. 1993. Die Gattung Plectus Bastian, (1865). sensu lato (Nematoda: Plectidae) — Ein Beitrag zur Ökologie, Biogeographie, Phylogenie und Taxonomie der Plectidae. Andrias 11: 3–171.
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Shokoohi, E., Mehrabi-Nasab, A., Abolafia, J. et al. Study of the genus Plectus Bastian, 1865 (Nematoda: Plectidae) from Iran. Biologia 68, 1142–1154 (2013). https://doi.org/10.2478/s11756-013-0264-5
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DOI: https://doi.org/10.2478/s11756-013-0264-5