1. Bennett, M D. 1984. Nuclear architecture and its manipulation. In: Gustafson, J. P. (ed.) Gene Manipulation in Plant Improvement. Plenum Press, New York, pp. 469–502.
2. East, E M. 1936. Heterosis. Genetics, 21, 375–397.
3. Elliott, F C. 1958. Plant Breeding and Cytogenetics. McGraw-Hill, New York.
4. Narayan, R K J. 1988. Evolutionary significance of DNA variation in plants. Evol Trends Plants, 2, 121–130.
5. Pontecorvo, G. 1955. Gene structure and action in relation to heterosis. Proc Roy Soc (London), 144 B, 171–177.