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- Cell cycle, DNA replication, repair, and recombination in the dimorphic human pathogenic fungus Paracoccidioides brasiliensis
- Viviane Castelo Branco Reis1, Fernando Araripe Gonçalves Torres1,
- Marcio José Poças-Fonseca1, Marlene Teixeira De-Souza2, Diorge Paulo de Souza1,
- João Ricardo Moreira Almeida1, Camila Marinho-Silva1, Nádia Skorupa Parachin1,
- Alessandra da Silva Dantas1, Thiago Machado Mello-de-Sousa1 and
- Lídia Maria Pepe de Moraes1
- 1Laboratório de Biologia Molecular, 2Laboratório de Microbiologia, Departamento de Biologia Celular, Universidade de Brasília, 70910-900 Brasília, DF, Brasil
- Corresponding author: L.M.P. de Moraes
- E-mail: lmoraes@unb.br
- Genet. Mol. Res. 4 (2): 232-250 (2005)
- Received January 18, 2005
- Accepted May 5, 2005
- Published June 21, 2005
ABSTRACT. DNA replication, together with repair mechanisms and cell cycle control, are the most important cellular processes necessary to maintain correct transfer of genetic information to the progeny. These processes are well conserved throughout the Eukarya, and the genes that are involved provide essential information for understanding the life cycle of an organism. We used computational tools for data mining of genes involved in these processes in the pathogenic fungus Paracoccidiodes brasiliensis. Data derived from transcriptome analysis revealed that the cell cycle of this fungus, as well as DNA replication and repair, and the recombination machineries, are highly similar to those of the yeast Saccharomyces cerevisiae. Among orthologs detected in both species, there are genes related to cytoskeleton structure and assembly, chromosome segregation, and cell cycle control genes. We identified at least one representative gene from each step of the initiation of DNA replication. Major players in the process of DNA damage and repair were also identified.
Key words: Paracoccidioides brasiliensis, Transcriptome, Cell cycle, DNA replication, DNA repair, Recombination
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