Dataset Information

Deladenus posteroporus n. sp. (Nematoda: Neotylenchidae) Isolated from Packaging Wood from Canada and White Pine (Pinus monticola) Lumber from the United States and Intercepted in Ningbo, China.

ABSTRACT: Deladenus posteroporus n. sp. isolated from packaging wood originated from Canada and from white pine lumber from the United States, both intercepted in the port of Ningbo, China, is described and illustrated. Both mycetophagous and infective forms were recovered from the Canadian sample, whereas only the mycetophagous form was found in the U.S. SAMPLE:The new species is characterized by the posteriorly positioned excretory pore relative to the hemizonid in both mycetophagous and infective forms, by a broadly rounded tail end in mycetophagous females and lateral fields with 11 to 12 lines midbody in both mycetophagous females and males. The partial 18S, complete internal transcribed spacer, and partial 28S D2/D3 rRNA genes were amplified and sequenced. Phylogenetic analyses of the genes grouped the new species with previously sequenced species of Deladenus in a fully supported clade. This is the first report of Deladenus species with a known infective stage to have the excretory pore positioned posterior to the hemizonid.

SUBMITTER: Yu Q

PROVIDER: S-EPMC5507138 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature

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<i>Deladenus posteroporus</i> n. sp. (Nematoda: Neotylenchidae) Isolated from Packaging Wood from Canada and White Pine (<i>Pinus monticola</i>) Lumber from the United States and Intercepted in Ningbo, China.

Yu Qing Q Gu Jianfeng J Ye Weimin W Li Rusong R He Jie J

Journal of nematology 20170601 2

<i>Deladenus posteroporus</i> n. sp. isolated from packaging wood originated from Canada and from white pine lumber from the United States, both intercepted in the port of Ningbo, China, is described and illustrated. Both mycetophagous and infective forms were recovered from the Canadian sample, whereas only the mycetophagous form was found in the U.S.<h4>Sample</h4>The new species is characterized by the posteriorly positioned excretory pore relative to the hemizonid in both mycetophagous and i ...[more]

PMID: 28706317

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Project description:A new species of the genus Deladenus, D. gilanica n. sp. collected from Siahkal forests of Northern Iran, is described and illustrated. The new species is characterized by its 314 to 422-µm-long body, eight incisures in the lateral field, 7.5 to 8.0-μm-long stylet, position of the excretory pore, at the level of the hemizonid, both posterior to the nerve ring 61 to 76 µm from the anterior end, and conical tail with pointed tip. Based on morphology and morphometrics, the new species can be compared with eight known species of the genus: D. aridus, D. durus, D. obesus, D. oryzae, D. processus, D. wilsoni, D. proximus, and D. posteroporus. Evolutionary relationships of the new species with other Deladenus species were assessed with sequences of the D2 to D3 expansion regions of 28S rRNA and partial 18S rRNA gene. The phylogenetic analysis showed that D. gilanica n. sp. is genetically distinct from other included species. Deladenus gilanica n. sp. is a member of the D. siricidicola species complex and close to D. canii, D. nitobei, and D. siricidicola. Typologically, these species share the relative position of the excretory pore to the hemizonid.A new species of the genus Deladenus, D. gilanica n. sp. collected from Siahkal forests of Northern Iran, is described and illustrated. The new species is characterized by its 314 to 422-µm-long body, eight incisures in the lateral field, 7.5 to 8.0-μm-long stylet, position of the excretory pore, at the level of the hemizonid, both posterior to the nerve ring 61 to 76 µm from the anterior end, and conical tail with pointed tip. Based on morphology and morphometrics, the new species can be compared with eight known species of the genus: D. aridus, D. durus, D. obesus, D. oryzae, D. processus, D. wilsoni, D. proximus, and D. posteroporus. Evolutionary relationships of the new species with other Deladenus species were assessed with sequences of the D2 to D3 expansion regions of 28S rRNA and partial 18S rRNA gene. The phylogenetic analysis showed that D. gilanica n. sp. is genetically distinct from other included species. Deladenus gilanica n. sp. is a member of the D. siricidicola species complex and close to D. canii, D. nitobei, and D. siricidicola. Typologically, these species share the relative position of the excretory pore to the hemizonid.

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Dataset Information

Deladenus posteroporus n. sp. (Nematoda: Neotylenchidae) Isolated from Packaging Wood from Canada and White Pine (Pinus monticola) Lumber from the United States and Intercepted in Ningbo, China.

Publications

<i>Deladenus posteroporus</i> n. sp. (Nematoda: Neotylenchidae) Isolated from Packaging Wood from Canada and White Pine (<i>Pinus monticola</i>) Lumber from the United States and Intercepted in Ningbo, China.

Similar Datasets

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