Divergence Between Sympatric Rice- and Soybean-Infecting Populations of Rhizoctonia solani Anastomosis Group-1 IA

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dc.contributor.authorde Assis, Joana Bernardes
dc.contributor.authorPeyer, Patrik
dc.contributor.authorRush, Milton C.
dc.contributor.authorZala, Marcello
dc.contributor.authorMcDonald, Bruce A.
dc.contributor.authorCeresini, Paulo C. [UNESP]
dc.contributor.institutionETH
dc.contributor.institutionLouisiana State Univ
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:30:21Z
dc.date.available2014-05-20T13:30:21Z
dc.date.issued2008-12-01
dc.description.abstractRhizoctonia solani anastomosis group (AG)-1 IA causes soybean foliar blighting (aerial blight) and rice sheath blight diseases. Although taxonomically related within the AG-1 complex, sister populations of R. solani AG-1 IA infecting Poaceae (rice) and Fabaceae (soybean) are genetically distinct based on internal transcribed spacer rDNA. However, there is Currently no information available regarding the extent of genetic differentiation and host specialization between rice- and soybean-infecting populations of R. solani AG-1 IA. We used 10 microsatellite loci to compare sympatric R. solani AG-1 IA populations infecting rice and soybeans in Louisiana and one allopatric rice-infecting population from Texas. None of the 154 multilocus genotypes found among the 223 isolates were shared among the three populations. Partitioning of genetic diversity showed significant differentiation among sympatric populations from different host Species (Phi(ST) = 0.39 to 0.41). Historical migration patterns between sympatric rice- and soybean-infecting populations from Louisiana were asymmetrical. Rice- and soybean-derived isolates of R. solani AG-1 IA were able to infect both rice and soybean, but were significantly more aggressive on their host of on-in, consistent with host specialization. The soybean-infecting Population from Louisiana was more clonal than the sympatric rice-infecting population. Most of the loci in the soybean-infecting populations were Out of Hardy-Weinberg equilibrium (HWE.), but the sympatric rice-infecting population from Louisiana was mainly in HWE. All populations presented evidence for a mixed reproductive system.en
dc.description.affiliationETH, Inst Integrat Biol, Zurich, Switzerland
dc.description.affiliationLouisiana State Univ, AgCtr, Dept Plant Pathol & Crop Physiol, Baton Rouge, LA 70803 USA
dc.description.affiliationUNESP, Depto Fitossanidade Engn Rural & Solos, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespUNESP, Depto Fitossanidade Engn Rural & Solos, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.sponsorshipETH
dc.description.sponsorshipMicrosoft Corporation
dc.description.sponsorshipIdETH: TH-16/06-1
dc.format.extent1326-1333
dc.identifierhttp://dx.doi.org/10.1094/PHYTO-98-12-1326
dc.identifier.citationPhytopathology. St Paul: Amer Phytopathological Soc, v. 98, n. 12, p. 1326-1333, 2008.
dc.identifier.doi10.1094/PHYTO-98-12-1326
dc.identifier.issn0031-949X
dc.identifier.urihttp://hdl.handle.net/11449/10306
dc.identifier.wosWOS:000263386200010
dc.language.isoeng
dc.publisherAmer Phytopathological Soc
dc.relation.ispartofPhytopathology
dc.relation.ispartofjcr3.036
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectpathogen emergenceen
dc.subjectsoybean aerial blighten
dc.titleDivergence Between Sympatric Rice- and Soybean-Infecting Populations of Rhizoctonia solani Anastomosis Group-1 IAen
dc.typeArtigo
dcterms.rightsHolderAmer Phytopathological Soc
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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Artigos - Fitossanidade, Engenharia Rural e Solos - FEIS