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Population characterization of Brazilian isolates of Ceratocystis spp. using microsatellites
Poster Title: Population characterization of Brazilian isolates of Ceratocystis spp. using microsatellites
Submitted on 12 Jan 2015
Author(s): Edson Luiz Furtado, Ana Carolina Firmino,  Michael Mbenoun, Denise Nakada Nosaki, Ariska Van der Nest, Jolanda Roux, Irene Bernes, Mike Wingfield
Affiliations: 1Faculdade de ciências agronômicas, UNESP Botucatu, SP. Brazil   2Forestry and Agricultural Biotechnology Institute (FABI), Private Bag X20, University of Pretoria, Pretoria, 0028, South Africa
This poster was presented at Plant & Animal Genome XXIII
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Poster Information
Abstract: Ten SSR markers developed previously were used and were polymorphic. These markers produced a total of 76 alleles for the 49 C. fimbriata isolates used in this study. Three distinct populations were identified using STRUCTURE and LNK analyses. Analysis of population differentiation show a Ө = 0.27 and p ≤ 0.04. High values of genotypic diversity were obtained for the combined (68.25%) and separate populations (77.77%, 52.08% and 100%). For the combined population, the Association Index (Ia) and baD values (Rd) were 1.91 and 0.22, respectively, indicating a high rate of recombination among the isolates.Summary: The genus Ceratocystis includes several species of economically important plant pathogens and has a global distribution. In Brazil, species in the genus cause disease and death of hosts such as cacao, eucalypts and mango. This study aimed to characterize the population structure and diversity of isolates of Ceratocystis fimbriata sensu lato collected from diseased Eucalyptus species and to compare these to isolates from cacao, mango, teak, fig, rubber and atemoya.References: The authors send acknowledgements to the financial support from FAPESP (proceeding numbers: 2011/057-10), CNPq (processo 158876/2014-8), to Dra. Stela Dalva Vieira Midlej Silva from CEPLAC-Bahia and Dra. Margarida Fumiko Ito from APTA/IAC/Campinas.
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