<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>One new and one known species of the genus <italic>Aphelenchoides</italic> from Iran are studied. <italic>Aphelenchoides giblindavisi</italic> n. sp. is mainly characterized by having five lines in the lateral fields at mid-body, and a single mucro with several tiny nodular protuberances, giving a warty appearance to it, as revealed by detailed scanning electron microscopic (SEM) studies. The new species is further characterized by having a body length of 546 to 795 μm in females and 523 to 679 μm in males, rounded lip region separated from the rest body by a shallow depression, 10 to 11 μm long stylet with small basal swellings, its conus shorter than the shaft (<italic>m</italic> = 36–43), 52 to 69 µm long postvulval uterine sac (PUS), males with 16 to 18 μm long arcuate spicules, and three pairs of caudal papillae. The new species was morphologically compared with two species of the genus having five lines in the lateral fields namely <italic>A. paramonovi</italic> and <italic>A. shamimi</italic> and species having a warty-surfaced mucro at tail end and similar morphometric data ranges. The morphological features and morphometrics of the second studied species, <italic>A. helicus</italic>, agreed well with the data given for the type population. However, detailed study of fresh females revealed it has three drop-shaped stylet knobs and long PUS, making it typologically similar to the genus <italic>Robustodorus</italic>, meriting its taxonomic revision, i.e., transferring to it. In molecular phylogenetic analyses using partial small and large subunit ribosomal RNA gene (SSU and LSU rDNA) sequences, the new species formed a clade with <italic>A. heidelbergi</italic> in both SSU and LSU D2-D3 trees. The species <italic>A. helicus</italic>, however, clustered inside a well-supported clade of the genus <italic>Robustodorus</italic> in both trees, corroborating its newly proposed taxonomic placement as <italic>Robustodorus helicus</italic> n. comb.</p>
</abstract>

One new and one known species of the genus Aphelenchoides from Iran are studied. Aphelenchoides giblindavisi n. sp. is mainly characterized by having five lines in the lateral fields at mid-body, and a single mucro with several tiny nodular protuberances, giving a warty appearance to it, as revealed by detailed scanning electron microscopic (SEM) studies. The new species is further characterized by having a body length of 546 to 795 μm in females and 523 to 679 μm in males, rounded lip region separated from the rest body by a shallow depression, 10 to 11 μm long stylet with small basal swellings, its conus shorter than the shaft (m = 36–43), 52 to 69 µm long postvulval uterine sac (PUS), males with 16 to 18 μm long arcuate spicules, and three pairs of caudal papillae. The new species was morphologically compared with two species of the genus having five lines in the lateral fields namely A. paramonovi and A. shamimi and species having a warty-surfaced mucro at tail end and similar morphometric data ranges. The morphological features and morphometrics of the second studied species, A. helicus, agreed well with the data given for the type population. However, detailed study of fresh females revealed it has three drop-shaped stylet knobs and long PUS, making it typologically similar to the genus Robustodorus, meriting its taxonomic revision, i.e., transferring to it. In molecular phylogenetic analyses using partial small and large subunit ribosomal RNA gene (SSU and LSU rDNA) sequences, the new species formed a clade with A. heidelbergi in both SSU and LSU D2-D3 trees. The species A. helicus, however, clustered inside a well-supported clade of the genus Robustodorus in both trees, corroborating its newly proposed taxonomic placement as Robustodorus helicus n. comb.

Description of <italic>Aphelenchoides giblindavisi</italic> n. sp. (Nematoda: Aphelenchoididae), and Proposal for a New Combination

Journal of Nematology

This work is licensed under the Creative Commons Attribution 4.0 International License.

Description of  n. sp. (Nematoda: Aphelenchoididae), and Proposal for a New Combination

running-head

One new and one known species of the genus Aphelenchoides from Iran are studied. Aphelenchoides giblindavisi n. sp. is mainly characterized by having five...

Description of Aphelenchoides giblindavisi n. sp. (Nematoda: Aphelenchoididae), and Proposal for a New Combination

Pubblicato online: 17 ott 2018

Pagine: 437 - 452

DOI: https://doi.org/10.21307/jofnem-2018-035

Parole chiave
Molecular, morphology, morphometrics, phylogeny, rRNA gene, SEM, taxonomy

© 2018 Farzad Aliramaji et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Description of Aphelenchoides giblindavisi n. sp. (Nematoda: Aphelenchoididae), and Proposal for a New Combination

Pubblicato online: 17 ott 2018

Pagine: 437 - 452

DOI: https://doi.org/10.21307/jofnem-2018-035

Parole chiaveMolecular, morphology, morphometrics, phylogeny, rRNA gene, SEM, taxonomy

© 2018 Farzad Aliramaji et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Parole chiave
Molecular, morphology, morphometrics, phylogeny, rRNA gene, SEM, taxonomy