Cellular and Transcriptional Responses of Resistant and Susceptible Cultivars of Alfalfa to the Root Lesion Nematode, Pratylenchus penetrans

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dc.contributor.authorVieira, Pauloen
dc.contributor.authorMowery, Josephen
dc.contributor.authorEisenback, Jonathan D.en
dc.contributor.authorShao, Jonathanen
dc.contributor.authorNemchinov, Lev G.en
dc.contributor.departmentSchool of Plant and Environmental Sciencesen
dc.date.accessioned2020-02-27T13:47:51Zen
dc.date.available2020-02-27T13:47:51Zen
dc.date.issued2019-07-31en
dc.description.abstractThe root lesion nematode (RLN), Pratylenchus penetrans, is a migratory species that attacks a broad range of crops, including alfalfa. High levels of infection can reduce alfalfa forage yields and lead to decreased cold tolerance. Currently, there are no commercially certified varieties with RLN resistance. Little information on molecular interactions between alfalfa and P. penetrans, that would shed light on mechanisms of alfalfa resistance to RLN, is available. To advance our understanding of the host-pathogen interactions and to gain biological insights into the genetics and genomics of host resistance to RLN, we performed a comprehensive assessment of resistant and susceptible interactions of alfalfa with P. penetrans that included root penetration studies, ultrastructural observations, and global gene expression profiling of host plants and the nematode. Several gene-candidates associated with alfalfa resistance to P. penetrans and nematode parasitism genes encoding nematode effector proteins were identified for potential use in alfalfa breeding programs or development of new nematicides. We propose that preformed or constitutive defenses, such as significant accumulation of tannin-like deposits in root cells of the resistant cultivar, could be a key to nematode resistance, at least for the specific case of alfalfa-P. penetrans interaction.en
dc.description.adminPublic domain – authored by a U.S. government employeeen
dc.description.notesThis research was supported by the United States Department of Agriculture - Agricultural Research Service, CRIS project 8042-21000-268-00D.en
dc.description.sponsorshipUnited States Department of Agriculture - Agricultural Research Service, CRIS project [8042-21000-268-00D]en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.3389/fpls.2019.00971en
dc.identifier.issn1664-462Xen
dc.identifier.other971en
dc.identifier.pmid31417588en
dc.identifier.urihttp://hdl.handle.net/10919/97064en
dc.identifier.volume10en
dc.language.isoenen
dc.rightsCC0 1.0 Universalen
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/en
dc.subjectalfalfaen
dc.subjectMedicago sativaen
dc.subjectPratylenchidaeen
dc.subjecttannin-like depositsen
dc.subjecttranscriptomeen
dc.subjectresistanceen
dc.titleCellular and Transcriptional Responses of Resistant and Susceptible Cultivars of Alfalfa to the Root Lesion Nematode, Pratylenchus penetransen
dc.title.serialFrontiers in Plant Scienceen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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