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

<p><italic>Aphelenchoides bicaudatus</italic> associated with grass in South Africa was identified morphologically and molecularly. This population is characterized by a body length of 409 – 529 μm, a stylet length of 9.5 – 13 μm, a post-vulval uterine sac of 45 – 50 μm, and the characteristic tail bifurcated at the end with one prong longer than the other. Molecular analyses based on the 18S and ITS rDNA data confirmed the primary morphological identification of the <italic>A. bicaudatus</italic> species. The obtained phylogenetic trees revealed a close positioning of the South African population to other representatives of <italic>A. bicaudatus</italic> with the maximum (1.00) posterior probability value. Principal component analysis (PCA) also indicated a variation within the populations of <italic>A. bicaudatus</italic>. This is the first report of <italic>A. bicaudatus</italic> from South Africa.</p></abstract>

Aphelenchoides bicaudatus associated with grass in South Africa was identified morphologically and molecularly. This population is characterized by a body length of 409 – 529 μm, a stylet length of 9.5 – 13 μm, a post-vulval uterine sac of 45 – 50 μm, and the characteristic tail bifurcated at the end with one prong longer than the other. Molecular analyses based on the 18S and ITS rDNA data confirmed the primary morphological identification of the A. bicaudatus species. The obtained phylogenetic trees revealed a close positioning of the South African population to other representatives of A. bicaudatus with the maximum (1.00) posterior probability value. Principal component analysis (PCA) also indicated a variation within the populations of A. bicaudatus. This is the first report of A. bicaudatus from South Africa.

First report of <italic>Aphelenchoides bicaudatus</italic> (<xref ref-type="bibr" rid="j_helm-2022-0035_ref_016">Imamura, 1931</xref>) Filipjev and Schuurmans Stekhoven, 1941 associated with grass in South Africa

Helminthologia

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First report of  () Filipjev and Schuurmans Stekhoven, 1941 associated with grass in South Africa

Aphelenchoides bicaudatus associated with grass in South Africa was identified morphologically and molecularly. This population is characterized by a body...

First report of Aphelenchoides bicaudatus (Imamura, 1931) Filipjev and Schuurmans Stekhoven, 1941 associated with grass in South Africa

Article Category: Research Note

Published Online: Dec 30, 2022

Page range: 414 - 423

Received: Apr 13, 2022

Accepted: Aug 17, 2022

DOI: https://doi.org/10.2478/helm-2022-0035

Keywords
grass, morphology, PCA, phylogeny, rDNA, South Africa

© 2022 E. Shokoohi, N. A. G. Moyo, published by Sciendo

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

First report of Aphelenchoides bicaudatus (Imamura, 1931) Filipjev and Schuurmans Stekhoven, 1941 associated with grass in South Africa

Article Category: Research Note

Published Online: Dec 30, 2022

Page range: 414 - 423

Received: Apr 13, 2022

Accepted: Aug 17, 2022

DOI: https://doi.org/10.2478/helm-2022-0035

Keywordsgrass, morphology, PCA, phylogeny, rDNA, South Africa

© 2022 E. Shokoohi, N. A. G. Moyo, published by Sciendo

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

Keywords
grass, morphology, PCA, phylogeny, rDNA, South Africa