Species-specific features of the protein patterns of diploid cotton seeds with A and D genomes and of some amphidiploids

Differences between species were revealed in electrophoretic patterns of seed proteins of various diploid cotton species with A and D genomes and some amphidiploids. Reference spectra and electrophoretic formulas were compiled for representatives of diploid and amphidiploid species, and the electrophoretic spectra were visually evaluated. They would allow identification of various cotton species, varieties, and lines. Homology between cotton species was estimated from the results of electrophoretic protein studies. The homology between species of a single genome group was shown to be closer than between species belonging to different genome groups.