Electrophoresis and staining of proteins from the single pollen grains of Hibiscus rosa sinensis have been developed by using general ultrathin polyacrylamide gel combined with highly sensitive silver staining technique.The result revealed that the pollen abortion could occur in different stages of pollen development.The protein patterns varied greatly in different stages of pollen development, even in the different pollen grains in the same anther at the same development stage.Some bands exhibited a disjunction by classical Mendelian ratio 1∶1, suggesting that the gene loci were heterogeneous and the proteins were related to the expression of the genes at the early stage of pollen development.
