Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1041410
Full metadata record
DC FieldValueLanguage
dc.contributor.authorCABRAL, P. G. C.pt_BR
dc.contributor.authorMACIEL-ZAMBOLIM, E.pt_BR
dc.contributor.authorOLIVEIRA, S. A. S. dept_BR
dc.contributor.authorCAIXETA, E. T.pt_BR
dc.contributor.authorZAMBOLIM, L.pt_BR
dc.contributor.otherP. G. C. CABRAL, UFV; E. MACIEL-ZAMBOLIM, UFV; SAULO ALVES SANTOS DE OLIVEIRA, CNPMF; EVELINE TEIXEIRA CAIXETA, SAPC; L. ZAMBOLIM, UFV.pt_BR
dc.date.accessioned2016-03-18T11:11:11Zpt_BR
dc.date.available2016-03-18T11:11:11Zpt_BR
dc.date.created2016-03-18pt_BR
dc.date.issued2016pt_BR
dc.identifier.other1024pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1041410pt_BR
dc.descriptionCoffee leaf rust is the most limiting disease for coffee cultivation in Brazil. Despite its importance, relatively little is known about the genetic diversity of Hemileia vastatrix, the rust causal agent. In this work, the DNA from 112 monopustule isolates from different geographic locations and coffee genotypes were analysed by amplified fragment length polymorphisms (AFLP). The objectives were to assess the influence of the host and geographic origin on the diversity and population differentiation in H. vastatrix. The fungal population showed a low level of genotypic diversity. Gene diversity (h) was 0027 and the hypothesis of random mating in the total population was rejected, but evidence for recombination was found for two subpopulations (São Paulo and Parana). The analysis of molecular variance revealed that 90% of the genetic distribution of the pathogen occurs among isolates within the subpopulation (states or host of origin). There was no correlation between geographic and genetic distance (r = 0024, P = 074), which together with the high number of migrants and the low degree of differentiation in populations of H. vastatrix, is consistent with the fact that the inoculum is probably easily dispersed by wind over long distances, allowing dispersal of the pathogen among coffee growing areas in Brazil. Therefore, it is difficult to predict the durability of resistant sources to coffee rust. The recommendation for the breeding programmes is thus to incorporate multigenic resistance as a control strategy.pt_BR
dc.description.uribitstream/item/141425/1/Genetic-diversity.pdfpt_BR
dc.languageenpt_BR
dc.language.isoengeng
dc.publisherPlant Pathology, v. 65, n. 2, p.196-204, Feb, 2016.pt_BR
dc.relation.ispartofEmbrapa Café - Artigo em anais de congresso (ALICE)pt_BR
dc.titleGenetic diversity and structure of Hemileia vastatrix populations on Coffea spp.pt_BR
dc.typeArtigo em anais de congresso (ALICE)pt_BR
dc.date.updated2016-03-18T11:11:11Zpt_BR
dc.subject.thesagroCafépt_BR
dc.subject.thesagroVariação genéticapt_BR
dc.subject.nalthesaurusCoffeapt_BR
dc.ainfo.id1041410pt_BR
dc.ainfo.lastupdate2016-03-18pt_BR
dc.identifier.doi10.1111/ppa.12411pt_BR
Appears in Collections:Artigo em anais de congresso (SAPC)

Files in This Item:
File Description SizeFormat 
Geneticdiversity.pdf211,58 kBAdobe PDFThumbnail
View/Open

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace