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. 2022 Jun 17;54(1):20220015.
doi: 10.2478/jofnem-2022-0015. eCollection 2022 Feb.

First Report of Xiphinema Ifacolum Luc, 1961 (Dorylaimida: Longidoridae) from Nigeria

Tesleem T Bello  1 , Oluwatoyin A Fabiyi  2 , Ilenia Clavero-Camacho  3 , Carolina Cantalapiedra-Navarrete  3 , Juan E Palomares-Rius  3 , Pablo Castillo  3 , Antonio Archidona-Yuste  4
Affiliations

First Report of Xiphinema Ifacolum Luc, 1961 (Dorylaimida: Longidoridae) from Nigeria

Tesleem T Bello et al. J Nematol. .

Abstract

A population of a species of dagger nematode (Xiphinema) belonging to the non-americanum group was recovered from the fields of kola nut (Cola sp.) in southern Nigeria. The morphological and morphometric data obtained from this population were consistent with the characteristics of the species Xiphinema ifacolum. In addition, molecular identification based on D2-D3 expansion segments of 28S rRNA and partial mitochondrial COI gene regions confirmed its identity. According to our knowledge, this is the first report of the species from Nigeria, and the second report from Africa, after the original description from Foulaya, Guinea.

Keywords: Africa; Cytochrome oxidase c subunit 1; D2-D3 expansion segments of 28S rRNA gene; Dagger nematodes; Taxonomy.

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Figures

Figure 1
Figure 1
Light micrographs of Xiphinema ifacolum Luc, 1961 from Nigeria (A–I). (A) Whole female, (B,C) Female lip region showing amphidial fovea, (D–G) Detail of Z-organ in uterus, (H–I) Female tail regions. Indicators: af = amphidial fovea; a = anus; Zorg = Z-organ. (Scale bars: A = 200 μm; B, C, G–I = 10 μm; D–F = 20 μm).
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