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R.E. Hanada

Publications of : R.E. Hanada
Plant Genetics   Research Article

Identification of Colletotrichum isolates from Capsicum chinense in Amazon

Chili pepper (Capsicum chinense) is a great economic important culture on the State of Amazonas, and it represents, approximately, a production of 1.9 thousand tons per year. It is one of the hosts of Colletotrichum genus in the North region of Brazil. The aim of the study was to differentiate and to identify isolates of Colletotrichum collected from C. chinense in .. Read More»

Genet. Mol. Res. 16(2): gmr16029601

DOI: 10.4238/gmr16029601

Microbial Genetics   Research Article

Genetic diversity of Mycosphaerella fijiensis in Brazil analyzed using an ERIC-PCR marker

    G.F. Silva, R.D.V. Paixão, C.B. Queiroz, M.F. Santana, A. Souza, N.R. Sousa, R.E. Hanada and L. Gasparotto

The Enterobacterial repetitive intergenic consensus (ERIC) marker was used to analyze the genetic variability of Mycosphaerella fijiensis, the causative agent of Black Sigatoka disease in banana plants. A total of 123 isolates were used, which were divided into populations based on their original hosts and collection sites in Brazil. A total of 9 loci were .. Read More»

Genet. Mol. Res. 13(3): 2014.September.26.7

DOI: 10.4238/2014.September.26.7

Microbial Genetics   Research Article

Virulence and genetic diversity among isolates of Mycosphaerella fijiensis in two regions of Brazil

    G.F. Silva, V.S. Santos, N.R. Sousa, R.E. Hanada and L. Gasparotto

Black sigatoka, caused by the fungus Mycosphaerella fijiensis (anamorphic stage: Paracercospora fijiensis), was first detected in Brazil in early 1998 in the Benjamin Constant and Tabatinga municipalities in the State of Amazonas, near to where the borders of Brazil, Colombia, and Peru converge. Understanding how cultivars react to the pathogen, and characterizing t.. Read More»

Genet. Mol. Res. 15(2): gmr.15027797

DOI: 10.4238/gmr.15027797

Plant Genetics   Research Article

Distribution of mating-type alleles and M13 PCR markers in the black leaf spot fungus Mycosphaerella fijiensis of bananas in Brazil

    C.B. Queiroz E.C. Miranda R.E. Hanada N.R. Sousa L. Gasparotto M.A. Soares G.F. Silva

The fungus Mycosphaerella fijiensis is the causative agent of black sigatoka, which is one of the most destructive diseases of banana plants. Infection with this pathogen results in underdeveloped fruit, with no commercial value. We analyzed the distribution of the M. fijiensis mating-type system and its genetic variability using M13 phage DNA markers. We found a 1:1 distribution of mating-type al.. Read More»

Genet. Mol. Res. 12(1): 2013.February.8.9

DOI: 10.4238/2013.February.8.9