Abstract
DNA of molecular weight of about 2×107 was extracted from red peppers. When seeds of T cultivar (upup, fafa, YY, C1C1) were treated with DNA from K cultivar (UpUp, FaFa, yy, c1c1), a variant was obtained which shows a dominant character, non-fasciculate (Fa-), of the DNA donor, but maintains another recessive trait, erect (upup). Another variant was obtained in which two Mendelian traits changed to those of the DNA donor (up→Up, fa→Fa). The changes were exactly the same as those induced by ordinary grafting, suggesting that the mechanism of hereditary changes obtained by grafting could be induced by DNA derived from the stock.
