New Records of <i>Ditylenchus</i> Species from Southern Alberta, Canada

The presence of plant-parasitic nematodes (PPNs) in cultivated areas is a limiting factor in achieving marketable crop yield. To control and alleviate the effects of these nematodes and determine appropriate management strategies, species-level identification is crucial. Therefore, we conducted a ne...

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Main Authors: Maria Munawar, Atta Ur Rahman, Pablo Castillo, Dmytro P. Yevtushenko
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/12/5/998
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author Maria Munawar
Atta Ur Rahman
Pablo Castillo
Dmytro P. Yevtushenko
author_facet Maria Munawar
Atta Ur Rahman
Pablo Castillo
Dmytro P. Yevtushenko
author_sort Maria Munawar
collection DOAJ
description The presence of plant-parasitic nematodes (PPNs) in cultivated areas is a limiting factor in achieving marketable crop yield. To control and alleviate the effects of these nematodes and determine appropriate management strategies, species-level identification is crucial. Therefore, we conducted a nematode diversity survey, which resulted in the detection of four <i>Ditylenchus</i> species in cultivated areas of southern Alberta, Canada. The recovered species had six lines in the lateral field, delicate stylets (>10 µm long), distinct postvulval uterine sacs, and pointed to rounded tail tips. The morphological and molecular characterization of these nematodes revealed their identity as <i>D. anchilisposomus</i>, <i>D. clarus</i>, <i>D. tenuidens</i> and <i>D. valveus</i>, all of which are members of the <i>D</i>. <i>triformis</i> group. All of the identified species were found to be new records in Canada except for <i>D. valveus</i>. Accurate <i>Ditylenchus</i> species identification is crucial because false-positive identification can result in the implementation of quarantine measures over the detected area. Our current study not only documented the presence of <i>Ditylenchus</i> species from southern Alberta, but also described their morpho-molecular characteristics and subsequent phylogenetic relationships with related species. The results of our study will aid in the decision on whether these species should become a part of nematode management programs since nontarget species can become pests due to changes in cropping patterns or climate.
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spelling doaj.art-80bc9c9520714f4f99e78818c653597f2023-11-17T08:22:44ZengMDPI AGPlants2223-77472023-02-0112599810.3390/plants12050998New Records of <i>Ditylenchus</i> Species from Southern Alberta, CanadaMaria Munawar0Atta Ur Rahman1Pablo Castillo2Dmytro P. Yevtushenko3Department of Biological Sciences, University of Lethbridge, 4401 University Drive W, Lethbridge, AB T1K 3M4, CanadaDepartment of Biological Sciences, University of Lethbridge, 4401 University Drive W, Lethbridge, AB T1K 3M4, CanadaInstitute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Campus de Excelencia Internacional Agrolimentario, ceiA3, Avda. Menendez Pidal s/n, 14004 Cordoba, SpainDepartment of Biological Sciences, University of Lethbridge, 4401 University Drive W, Lethbridge, AB T1K 3M4, CanadaThe presence of plant-parasitic nematodes (PPNs) in cultivated areas is a limiting factor in achieving marketable crop yield. To control and alleviate the effects of these nematodes and determine appropriate management strategies, species-level identification is crucial. Therefore, we conducted a nematode diversity survey, which resulted in the detection of four <i>Ditylenchus</i> species in cultivated areas of southern Alberta, Canada. The recovered species had six lines in the lateral field, delicate stylets (>10 µm long), distinct postvulval uterine sacs, and pointed to rounded tail tips. The morphological and molecular characterization of these nematodes revealed their identity as <i>D. anchilisposomus</i>, <i>D. clarus</i>, <i>D. tenuidens</i> and <i>D. valveus</i>, all of which are members of the <i>D</i>. <i>triformis</i> group. All of the identified species were found to be new records in Canada except for <i>D. valveus</i>. Accurate <i>Ditylenchus</i> species identification is crucial because false-positive identification can result in the implementation of quarantine measures over the detected area. Our current study not only documented the presence of <i>Ditylenchus</i> species from southern Alberta, but also described their morpho-molecular characteristics and subsequent phylogenetic relationships with related species. The results of our study will aid in the decision on whether these species should become a part of nematode management programs since nontarget species can become pests due to changes in cropping patterns or climate.https://www.mdpi.com/2223-7747/12/5/998distributiondiversityecologyfungivoresidentificationmicroscopy
spellingShingle Maria Munawar
Atta Ur Rahman
Pablo Castillo
Dmytro P. Yevtushenko
New Records of <i>Ditylenchus</i> Species from Southern Alberta, Canada
Plants
distribution
diversity
ecology
fungivores
identification
microscopy
title New Records of <i>Ditylenchus</i> Species from Southern Alberta, Canada
title_full New Records of <i>Ditylenchus</i> Species from Southern Alberta, Canada
title_fullStr New Records of <i>Ditylenchus</i> Species from Southern Alberta, Canada
title_full_unstemmed New Records of <i>Ditylenchus</i> Species from Southern Alberta, Canada
title_short New Records of <i>Ditylenchus</i> Species from Southern Alberta, Canada
title_sort new records of i ditylenchus i species from southern alberta canada
topic distribution
diversity
ecology
fungivores
identification
microscopy
url https://www.mdpi.com/2223-7747/12/5/998
work_keys_str_mv AT mariamunawar newrecordsofiditylenchusispeciesfromsouthernalbertacanada
AT attaurrahman newrecordsofiditylenchusispeciesfromsouthernalbertacanada
AT pablocastillo newrecordsofiditylenchusispeciesfromsouthernalbertacanada
AT dmytropyevtushenko newrecordsofiditylenchusispeciesfromsouthernalbertacanada