Data/hora: 09/06/2024 15:30:16

Provedor de dados: | 74
País: | Brazil
Título: | Morphological characterization and genetic analysis of Drechslera teres isolates
Autores: | Frazzon,A.P.G.; Matsumura,A.T.S.; Van Der Sand,S.T.
Data: | 2002-01-01
Ano: | 2002
Palavras-chave: | Drechslera teres; Barley; Net blotch; DNA polymorphism; RAPD.
Resumo: | Net blotch, caused by the phytopathogen Drechslera teres, is a common disease of barley (Hordeum vulgare L) and is responsible for large economic losses in some barley growing areas. In this study the morphology and genetic variability of eight D. teres isolates from different regions of the Brazilian state of Rio Grande do Sul were investigated. Colony morphology was studied on potato-dextrose-agar (PDA) and genetic variability investigated using the random amplified polymorphic-DNA (RAPD) technique. 27 commercially available primers were tested of which 16 were selected for use in polymorphic analysis due to their good resolution and reproducibility. Similarity coefficients were used to construct dendrograms based on colony morphology and RAPD data showing the relationship between the eight isolates studied. Colony morphology showed variability between the isolates while RAPD assays showed high similarity coefficients, but grouping of the isolates according to the geographic origins of the seeds from which they were isolated was not possible.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000200019
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572002000200019
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.25 n.2 2002
Fonte: | info:eu-repo/semantics/openAccess