Recently, we obtained a spontaneous hypertriploid (2n = 3x + 1 = 61) in the progeny of a marker stock T31 (glabrous, p2p2) and a primary trisomic line T190-47-3.
One hypertriploid plant (2n = 3x + 1 = 61) in soybean was found among 10 [F.
The hypertriploid and disomic sib plants were individually planted in 20-cm clay pots in the greenhouse.
The young flower buds from the hypertriploid were sampled before flowering for meiotic studies (Singh and Hymowitz, 1988).
At anthesis, pollen samples from the hypertriploid and its disomic sib were
The hypertriploid plant was crossed reciprocally with Clark 63.
1] and selfed seeds harvested from the hypertriploid plant were examined according to the procedure described by Singh et a1.
A hypertriploid (2n = 61 chromosomes) plant was found among the [F.