Integrative taxonomy, distribution, and host associations of Geocenamus brevidens and Quinisulcius capitatus from southern Alberta, Canada

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Date
2021
Authors
Munawar, Maria
Yevtushenko, Dmytro P.
Castillo, Pablo
Journal Title
Journal ISSN
Volume Title
Publisher
Sciendo
Abstract
Two stunt nematode species, Geocenamus brevidens and Quinisulcius capitatus, were recovered from the potato growing regions of southern Alberta, described and characterized based on integrative taxonomy. Morphometrics, distribution, and host associations of both species are discussed. The Canadian populations of both species displayed minor variations in morphometrical characteristics (viz., slightly longer bodies and tails) from the original descriptions. The populations of G. brevidens and Q. capitatus species examined in this study are proposed as standard and reference populations for each respective species until topotype specimens become available and molecularly characterized. Phylogenetic analyses, based on partial 18S, 28S, and ITS sequences, placed both species with related stunt nematode species. The present study updates the taxonomic records of G. brevidens and Q. capitatus from a new location, southern Alberta, Canada, and will aid in the decision whether these stunt nematodes should be included in nematode management programs.
Description
Open access article. Creative Commons Attribution 4.0 International license (CC BY 4.0) applies
Keywords
Geocenamus brevidens , Quinisulcius capitatus , Stunt nematodes , Integrative taxonomy , Phylogeny , Morphology , New record , Nematodes , Nematode management programs
Citation
Munawar, M., Yevtushenko, D. P., & Castillo, P. (2021). Integrative taxonomy, distribution, and host associations of Geocenamus brevidens and Quinisulcius capitatus from southern Alberta, Canada. The Juornal of Nematology, 53, Article e2021. https://doi.org/10.21307/jofnem-2021-015