Progeny Resulting from Self-Pollination of Staminate Plant of Morus Alba Showing Sex Reversal

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Abstract
A reversed staminate tree of Morus alba was self-pollinated and produced good seed from which 32 young trees were grown. Of these the first 6 to bloom had sex expression as follows: 1 tree was pure staminate for 2 yrs.; 1 was pure staminate the 1st year and of mixed sex the 2nd year; 2 were pure carpellate; and 2 were carpellate with a slight development of staminate catkins. Determination of the sex of the original c? parent, therefore, was not due to any sex-determining differential heredity present, since it proved to have the potentialities for both sexes, as shown by the reversal in its soma; and the sex of the offspring was also determined in the zygote as c?1 and 9 , through a physiological gradient which caused a 9 or a d1 state to be differentiated in the same manner as and through the same cause as that which induced these states to develop through sex reversal in the advanced ontogeny of the individual. Sex-determining factors and sex-determining chromosomes can have no correspondence with the phenomena brought out by the experiment.