Another new ring nematode, Xenocriconemella andreae sp. nov. (Nematoda, Criconematidae), from the Iberian Peninsula
Nematode surveys in natural environments in the Iberian Peninsula detected three unidentified Xenocriconemella populations that closely resembled the X. macrodora-species complex, but utilization of integrative taxonomy confirmed that they comprised a new taxon described in this paper as X. andreae...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/366347 |
| Acceso en línea: | http://hdl.handle.net/10261/366347 |
| Access Level: | acceso abierto |
| Palabra clave: | 18S Morphometry COI Description D2-D3 Integrative taxonomy ITS |
| Sumario: | Nematode surveys in natural environments in the Iberian Peninsula detected three unidentified Xenocriconemella populations that closely resembled the X. macrodora-species complex, but utilization of integrative taxonomy confirmed that they comprised a new taxon described in this paper as X. andreae sp. nov. Only females were detected in the new species (considered parthenogenetic) and delineated with a bare body (274–353 µm); lip region with two annuli, continuous with body delineation; second lip annulus enclosed by the first one. Flexible and thin stylet (88.0–99.0 µm), representing 30.4–47.8% of total body length. The excretory pore is positioned 2–3 annuli posterior to the level of stylet knobs, at 101.5 (87–107) µm from the lip region. Female genital tract: monodelphic, prodelphic, large, and representing 34.4–52.4% of the body length; vagina slightly ventrally curved. The anus is located at (6–9) annuli from the rear end. Tail short, conoid, and blunt round terminus. Ribosomal and mitochondrial markers (D2-D3 expansion domains of 28S, ITS, partial 18S rRNA, and COI), as well as molecular phylogenetic analyses of sequences, confirmed this new taxon, and it was clearly delineated from X. macrodora and species within the species complex (X. costaricense, X. iberica, X. paraiberica, and X. pradense). |
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