1. National Council of Scientific and Technological Research (CONICET). Evolutive Genetic Laboratory FCEQyN, Misiones National University, Posadas Misiones, Argentina
2. Research Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
3. National Institute Agricultural Technology (INTA), Experimental Rural Agency, Aimogasta
4. Laboratory for Electron Microscopy, North-West University, Potchefstroom, South Africa