Maternal Effect by Stem Females in Brachionus plicatilis: Effect of Starvation on Mixis Induction in Offspring

Author： Hagiwara Atsushi Kadota Yoji Hino Akinori

ISSN： 0018-8158

Source： Hydrobiologia, Vol.546, Iss.1, 2005-09, pp. : 275-279

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Abstract

We examined whether starvation during the initial period of life in stem females affected reproductive characteristics of the offspring. Starvation treatment had different effects on rotifers hatched from resting eggs and those hatched from amictic eggs. When stem females experienced starvation after hatching, this induced a higher percentage of mixis in their offspring. When the same starvation treatment was applied to rotifers hatched from amictic eggs, there was no effect on the induction of mixis. It is probable that stem females hatched from resting eggs have specific features that are vulnerable to unfavorable environmental conditions, and that these features can be inherited by their offspring through the maternal cytoplasm.