Nuclear Number in the Rotifer Asplanchna: Intraclonal Variation and Environmental Control

Science  04 Feb 1966:
Vol. 151, Issue 3710, pp. 585-587
DOI: 10.1126/science.151.3710.585


The gastric glands and vitellarium of Asplanchna are exceptions to the rule of constancy of the number of nuclei in rotifers. The two glands of a female may have different numbers of nuclei. Nuclear number in both organs varies widely among different individuals in a single culture. The mean nuclear number characteristic of a clone may be modified by dietary changes.