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Abstract

Rhoeo spachacea exhibits uncommon and unique chromosomal configurations at diakinesis and metaphase I in the form of rings or chains. Chain configurations range from a chain of two to twelve chromosomes with every intermediate size in one, two or three groups. A chain of twelve chromosomes was the common configuration than ring. In the case of two chains per cell highest frequency (10.71 %) was observed with 7+5 chromosomes and lowest (4.28%) with 10+2 configuration. Different configurations of three chains per cell were found in 0.7-4.28% cells. However by comparisons of chromosome configurations in R spathaceastudied by different workers significant variations were observed. These variations could be due to the use of different clones of Rhoeo or to different horticultural environments.

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