1. Laboratory of Plant Cytogenetics, Department of Biology, Genetics Area, Botany Graduate Program, Federal Rural University of Pernambuco, Brazil
2. Department of Biology, Botany Area, Federal Rural University of Pernambuco, Brazil
3. Department of Biochemistry, Federal University of Pernambuco, Brazil
4. Laboratory of Plant Cytogenetics, Department of Agronomy, Plant Breeding Graduate Program, Federal Rural University of Pernambuco, Brazil