A genotype of the variety Empire Lotus corniculatus L. was found containing an organelle which appeared as an extra nucleolus within the nucleus. In microspore mother cells this organelle first appeared at early prophase I, staining much more intensely than the normal nucleolus and remained until mid-diakinesis, at which time it disappeared. This cycle coincided with that of the normal nucleolus. It has not been determined if the nucleolar-like body arises from a nucleolar organizer as does the normal nucleolus. This organelle was not associated with any chromosome in 16 per cent of the microspore mother cells examined at stages from pachynema to diakinesis. This nucleolar- like body was transmitted through the pollen of a plant containing the organelle. The pattern of inheritance of this organelle is presently under study.
Proceedings of the Iowa Academy of Science
© Copyright 1963 by the Iowa Academy of Science, Inc.
Wernsman, E. A.
"Occurrence of a Nucleolar-Like Body in Lotus Corniculatus L.,"
Proceedings of the Iowa Academy of Science, 70(1), 135-138.
Available at: https://scholarworks.uni.edu/pias/vol70/iss1/28