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

<p>Three populations of neotylenchid nematodes were isolated in Ningbo, P. R. China, from white pine lumber (<italic>Pinus monticola</italic>) imported from the USA. The nematodes were morphologically intermediate between <italic>Hexatylus</italic> and <italic>Deladenus</italic>. The nematodes were molecularly characterized based on sequences of the rDNA small subunit 18S, large subunit 28S D2/D3, and internal transcribed spacer sequences. The phylogenetic inferences placed the nematodes with other neotylenchid nematodes, i.e., <italic>Fergusobia</italic> and <italic>Rubzovinema</italic>. Based on the morphology and phylogenetic analysis, this nematode is described herein as <italic>Delatylus andersoni</italic> n. gen., n. sp. The new genus/species is characterized by the female body habitus ranging from nonobese to semiobese and from straight to dorsally curved when heat relaxed, cephalic framework with six unequal sized lip sectors, lateral fields having 10 to 12 lines, 4 to 5 guide rings on the stylet, excretory pore posterior to the nerve ring, spermatheca diminished or absent, vulvar opening large, and relative proximity of vulva to the anus. Detailed morphological and molecular characterization of the new genus/species is presented along with the comparison of the related genera.</p>
</abstract>

Three populations of neotylenchid nematodes were isolated in Ningbo, P. R. China, from white pine lumber (Pinus monticola) imported from the USA. The nematodes were morphologically intermediate between Hexatylus and Deladenus. The nematodes were molecularly characterized based on sequences of the rDNA small subunit 18S, large subunit 28S D2/D3, and internal transcribed spacer sequences. The phylogenetic inferences placed the nematodes with other neotylenchid nematodes, i.e., Fergusobia and Rubzovinema. Based on the morphology and phylogenetic analysis, this nematode is described herein as Delatylus andersoni n. gen., n. sp. The new genus/species is characterized by the female body habitus ranging from nonobese to semiobese and from straight to dorsally curved when heat relaxed, cephalic framework with six unequal sized lip sectors, lateral fields having 10 to 12 lines, 4 to 5 guide rings on the stylet, excretory pore posterior to the nerve ring, spermatheca diminished or absent, vulvar opening large, and relative proximity of vulva to the anus. Detailed morphological and molecular characterization of the new genus/species is presented along with the comparison of the related genera.

<italic>Delatylus andersoni</italic> n. gen., n. sp. (Nematoda: Neotylenchidae) Isolated from White Pine (<italic>Pinus monticola</italic>) Lumber from USA and Intercepted in Ningbo, China

Journal of Nematology

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

 n. gen., n. sp. (Nematoda: Neotylenchidae) Isolated from White Pine () Lumber from USA and Intercepted in Ningbo, China

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Three populations of neotylenchid nematodes were isolated in Ningbo, P. R. China, from white pine lumber (Pinus monticola) imported from the USA. The nematodes...

Delatylus andersoni n. gen., n. sp. (Nematoda: Neotylenchidae) Isolated from White Pine (Pinus monticola) Lumber from USA and Intercepted in Ningbo, China

Article Category: research-article

Published Online: May 31, 2018

Page range: 69 - 76

Accepted: Jul 07, 2017

DOI: https://doi.org/10.21307/jofnem-2018-013

Keywords
molecular, morphology, morphometric, nematode, new genus, new species, rDNA sequences, taxonomy

© 2018 Qing Yu et al., published by Sciendo

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

Delatylus andersoni n. gen., n. sp. (Nematoda: Neotylenchidae) Isolated from White Pine (Pinus monticola) Lumber from USA and Intercepted in Ningbo, China

Article Category: research-article

Published Online: May 31, 2018

Page range: 69 - 76

Accepted: Jul 07, 2017

DOI: https://doi.org/10.21307/jofnem-2018-013

Keywordsmolecular, morphology, morphometric, nematode, new genus, new species, rDNA sequences, taxonomy

© 2018 Qing Yu et al., published by Sciendo

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

Keywords
molecular, morphology, morphometric, nematode, new genus, new species, rDNA sequences, taxonomy