Division of Genetics, Indian Agricultural Research Institute, New Delhi, 110 012, India
1Present Address: Electron Microscope Laboratory, The University of Alberta, Edmonton, Canada. T6G 2E9.
2Present Address: Central Soil Salinity Research Institute, Karnal 132 001.
Based on chromosome cytology, pollen and nuclear size and seed proteins, it is suggested that the species P. aureus and P. mungo should be considered distinct. These together with distinct morphological features like differences in pod and seed-hilum characteristics and the markedly reduced crossability, provide conclusive evidence that while P. aureus and P. mungo are closely related, they are nevertheless clearly distinct and merit separate specific status.
