Soybean Genetics Newsletter


A single recessive gene designated Jn by Bernard and Weiss (1972) controls the inheritance of the lanceolate trifoliolate in soybean. They state that the narrow-leaf condition is associated with a high number of four-seeded pods, which they attributed to a pleiotropic effect of the Jn gene. No yield differences have been found between narrow and normal leaf types using isolines.