Mesorhabditis sudafricana n. sp. (Rhabditida, Mesorhabditidae), a new species with a short tail from South Africa-Reference-Cited by-同舟云学术

Mesorhabditis sudafricana n. sp. (Rhabditida, Mesorhabditidae), a new species with a short tail from South Africa

Published:2023-06-01 Issue:7 Volume:25 Page:775-790
ISSN:1388-5545
Container-title:Nematology
language:
Short-container-title:Nematol.

Author:

Shokoohi Ebrahim¹^ORCID,Abolafia Joaquín²^ORCID,Swart Antoinette³^ORCID,Moyo Ngonidzashe⁴^ORCID,Eisenback Jonathan⁵^ORCID

Affiliation:

1. Department of Research Administration and Development, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa

2. Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus “Las Lagunillas” s/n., 23071-Jaén, Spain

3. Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa

4. Aquaculture Research Unit, School of Agricultural and Environmental Sciences, Faculty of Science and Agriculture, University of Limpopo (Turfloop Campus), Private Bag X1106, Sovenga 0727, South Africa

5. School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA 24061, USA

Abstract

Summary During a survey of soil nematodes in 2022, a free-living bacterivorous nematode, described here as Mesorhabditis sudafricana n. sp., was discovered in association with kikuyu grass in Limpopo Province, South Africa. The new species was distinguished by a relatively long body (716-815 μm in females and 605-689 μm in males), long spicules (61-66 μm), and gubernaculum (22-24 μm) and a short tail (15-20 μm in females and 18-21 μm in males). The vulva is positioned posteriad (93-95% of body length), and the distance from vulva to anus is long (1.5-1.9 times tail length). Additionally, the new species bears seven lateral field incisures and a peloderan bursa with the genital papillae in arrangement 2/3+ph+1+3, being two precloacal and eight postcloacal. The 28S rDNA BlastN showed 94% similarity with an unidentified Mesorhabditis (deposited as Bursilla (EF990722). By contrast, the ITS rDNA BlastN showed 82% similarity with Mesorhabditis paucipapillata (MT710243). The phylogenetic analysis of 28S and ITS rDNA placed the new species separately from the other Mesorhabditis. Description, measurements, illustrations and SEM micrographs for M. sudafricana n. sp. are provided.

Publisher

Brill

Subject

Agronomy and Crop Science,Ecology, Evolution, Behavior and Systematics

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