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Álvaro Júlio Pereira
1
, Sandra Aparecida de Oliveira Collet
1
, Pedro Soares Vidigal Filho
2
and Maria de Fátima Pires da Silva Machado
1
*
1
Departamento de Biologia Celular e Genética, Universidade Estadual de Maringá, Av. Colombo, 5790, 87020-900, Maringá,
Paraná, Brasil.
2
Departamento de Agronomia, Universidade Estadual de Maringá, Av. Colombo, 5790, 87020-900, Maringá,
Paraná, Brasil. *Author for correspondence.
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