Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/16235
Tipo do documento: Artigo
Título: Genetic diversity and mycelial compatibility groups of the plant-pathogenic fungus Sclerotinia sclerotiorum in Brazil
Autor: Litholdo Junior, Celso Gaspar
Gomes, Eriston Vieira
Lobo Junior, Murillo
Nasser, L. C. B.
Silva, Silvana Petrofeza da
Resumo: The genetic variability of 40 Sclerotinia sclerotiorum isolates from various fields widely distributed throughout Brazil and different host crops was analyzed using RAPD markers and mycelial compatibility groupings (MCGs). The isolates were characterized using 16 random primers of the OPERON series, which produced 121 DNA fragments. UPGMA cluster analysis using Jaccard’s genetic distance and MCGs allowed separation of the isolates into three clusters, with similarity indices of 68.2, 61.8, and 61.8%, and five MCGs. The haplotypes obtained with RAPD markers provided very characteristic groupings of S. sclerotiorum isolates according to MCG, but did not show any relationship with geographic origin or host type. Furthermore, analysis of molecular variance demonstrated that 99.1% of the observed variation was a result of genetic differences between individuals; the host culture did not have a significant effect. This is the first report of high level variability of S. sclerotiorum in Brazil based on the study of isolates of wide geographical origin, supported by RAPD markers and MCGs. These results endorse the prevalence of sexual reproduction in tropical and subtropical regions in contrast to clonal reproduction in temperate regions.
Palavras-chave: Sclerotinia sclerotiorum
Mycelial compatibility groups
White mold
Genetic diversity
RAPD
País: Brasil
Unidade acadêmica: Instituto de Ciências Biológicas - ICB (RG)
Citação: LITHOLD JUNIOR, C. G. et al. Genetic diversity and mycelial compatibility groups of the plant-pathogenic fungus Sclerotinia sclerotiorum in Brazil. Genetics and Molecular Research, Ribeirão Preto, v. 10, n. 2, p. 868-877, 2011.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.4238/vol10-2gmr937
Identificador do documento: 10.4238/vol10-2gmr937
URI: http://repositorio.bc.ufg.br/handle/ri/16235
Data de publicação: 2011
Aparece nas coleções:ICB - Artigos publicados em periódicos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
Artigo - Celso Gaspar Litholdo Junior - 2011.pdf968,52 kBAdobe PDFThumbnail
Baixar/Abrir


Este item está licenciada sob uma Licença Creative Commons Creative Commons