Affiliation: | (1) CSIR Food, Biological and Chemical Technologies (Bio/Chemtek), P.O. Box 395, 0001 Pretoria, South Africa;(2) Institute for Plant Biotechnology, Stellenbosch University, Private Bag X1, 7602 Matieland, South Africa;(3) Department of Genetics, Stellenbosch University, Private Bag X1, 7602 Matieland, South Africa;(4) South African Sugar Association Experiment Station, Private Bag X02, Mount Edgecombe, South Africa |