Polyembryony in Undeveloped Monoembryonic Diploid Seeds Crossed with a Citrus Tetraploid

St. Joseph

1990

S. 1276 - 1277

Bandaufführung

10725S

168636

Some undeveloped seeds from mature Citrus fruit of monoembryonic diploid cultivars crossed with a tetraploid selection were observed to be polyembryonic. The multiple embryos formed a small mass the the micropylar end. Plants regenerated in vitro from the embryos in polyembryonic seeds were triploid and showed identical peroxidase banding patterns on acrylamide gels. These results indicate that the multiple embryos found in the undeveloped seed from monoembryonic diploid x tetraploid crosses are genetically identical and of zygotic origin.