Molecular Characterization of Root-Lesion Nematode Species from Corn Fields in North Dakota and Evaluation of Resistance in Corn Hybrids

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dc.contributor.authorAkhter, Nasima
dc.date.accessioned2020-09-15T19:43:18Z
dc.date.available2020-09-15T19:43:18Z
dc.date.issued2019
dc.description.abstractThe molecular characterization of Pratylenchus species determined from D2-D3 of 28S rDNA, ITS of rDNA, and COI of mtDNA regions revealed four Pratylenchus species from North Dakota, P. scribneri, P. neglectus, Pratylenchus sp. (ND-2016 isolate HG51), and Pratylenchus sp. (ND-2017). They were clustered in four separate clades in the phylogenetic trees indicating the divergence among species. P. scribneri and Pratylenchus sp. (ND-2016 isolate HG51) were closely associated and Pratylenchus sp. (DH-2017) was closely related to Pratylenchus sp. (ND-2016 isolate HG51). However, P. neglectus was not closely associated with the other three species. Moreover, resistance evaluation of ten corn hybrids to Pratylenchus scribneri, P. neglectus, and Pratylenchus sp. (ND-2017) revealed that 1392 VT2P was moderately resistant to three Pratylenchus species. PFS74K89 and 4913 VT2RIB were moderately resistant to two of the three Pratylenchus species. X5B-8801, DK 43-46, and DKC 44-13 were susceptible to two of the three Pratylenchus species.en_US
dc.identifier.orcid0000-0002-7432-6797
dc.identifier.urihttps://hdl.handle.net/10365/31534
dc.publisherNorth Dakota State Universityen_US
dc.rightsNDSU policy 190.6.2en_US
dc.rights.urihttps://www.ndsu.edu/fileadmin/policy/190.pdfen_US
dc.subjectcorn hybridsen_US
dc.subjectmolecular characterizationen_US
dc.subjectnorth dakotaen_US
dc.subjectresistanceen_US
dc.subjectroot-lesion nematodesen_US
dc.titleMolecular Characterization of Root-Lesion Nematode Species from Corn Fields in North Dakota and Evaluation of Resistance in Corn Hybridsen_US
dc.typeThesisen_US
ndsu.advisorYan, Guiping
ndsu.collegeAgriculture, Food Systems and Natural Resourcesen_US
ndsu.degreeMaster of Science (MS)en_US
ndsu.departmentPlant Sciencesen_US
ndsu.programPlant Sciencesen_US

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