Amplification of the cap20 Pathogenicity Gene and Genetic Characterization Using Different Markers Molecular in Colletotrichum gloeosporioides Isolates
Amplification of the cap20 Pathogenicity Gene and Genetic Characterization Using Different Markers Molecular in Colletotrichum gloeosporioides Isolates
Ano: 2010 | Volume: 53 | Número: 6
Autores: Danielli Barreto Maciel, Lílian Vieira de Medeiros, Vivian Vieira de Medeiros, Mariele Porto Carneiro Leão, Luis Eduardo Aranha Camargo, Neiva Tinti de Oliveira Autor Correspondente: Neiva Tinti de Oliveira | [email protected]
Studies were performed to analyze the genetic characterization using RFLP-ITS and Intron (primer EI1) markers
and the amplification of the cap20 pathogenicity gene by PCR in Colletotrichum gloeosporioides isolates of
different hosts plant. The genetic variability was accessed using RFLP-ITS and Intron markers and grouping by
UPGMA method. Primers to cap20 gene were constructed using selected sequences of the GenBank (National
Center of Biotechnology Information, http://www.ncbi.nlm.nih.gov) with the Primer 3 program. The dendrograms
analysis showed that the RFLP-ITS marker was more informative to separate the Colletotrichum sp, and that primer
EI1 demonstrated greater genetic diversity. The amplification of the DNA of the Colletotrichum isolates to the
cap20 gene with primers P1 and P2 indicated that this gene could present variations into C. gloeosporioides related
with the host, and also that it was present in other Colletotrichum sp.