Morphological and Molecular Characterization of Sp. N. (Rhabditida, Rhabditidae) From Decaying Wood in Spain, With New Insights into the Phylogeny of the Genus and a Revision of Its Taxonomy

Overview

Journal J Nematol

Date 2021 Jun 28

PMID 34179804

Citations 4

Authors

Joaquin Abolafia

Reyes Pena-Santiago

Affiliations

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Abstract

A new species of the genus , sp. n., collected in decaying wood obtained from an orchard in Southern Iberian Peninsula, is reported. A detailed description, including morphometrics, LM and SEM images, and molecular (18S and 28S rDNA genes) information is provided. The female is characterized by a moderately long body, lateral field with three longitudinal ridges, midbody vulva, and conical tail with acute tip. It was distinguished from its closest relative, , by a shorter tail and longer rectum. The male was not found. Morphological and molecular data support its belonging to -group. Molecular analyses show that both and groups are related to each other, being proposed as subgenera of the genus as and Finally, an updated taxonomy of the genus is presented, with generic and subgeneric diagnoses, list of species and a key to their identification.

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