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The developmental genetics of polymorphism in the rotiferAsplanchna. III. Quantitative modification of developmental responses to vitamin E, by the genome, physiological state, and population density of responding females

✍ Scribed by Birky, C. W.

Publisher: John Wiley and Sons
Year: 1969
Tongue: English
Weight: 967 KB
Volume: 170
Category: Article
ISSN: 0022-104X
DOI: 10.1002/jez.1401700406

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✦ Synopsis

An increase in the level of vitamin E in the diet of amictic female Asplanchna fed paramecia and reproducing by parthenogenesis elicits three responses:

(1) the mixis response: a proportion of their offspring develop into mictic females, which reproduce bisexually; (2) the BWO response: the offspring develop regular body-wall outgrowths and (35 a reduction in fecundity of amictic females. The quantitative control of these responses has been studied. Genotypic modification of the BWO response has been demonstrated by showing consistent quantitative differences in the response of different clones from the same or different natural populations. Variation in the BWO response has also been demonstrated among the

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The developmental genetics of polymorphism in the rotiferAsplanchna. II. A method for quantitative analysis of changes in morphogenesis induced by vitamin E, and the short-term inheritance of the effects of vitamin E

✍ Birky, C. W. ;Power, Judith A. 📂 Article 📅 1969 🏛 John Wiley and Sons 🌐 English ⚖ 953 KB

Amictic female Asplanchna sieboldi, reproducing asexually by diploid parthenogenesis, are predominantly saccate in form when fed paramecia. The addition of vitamin E to their diet causes their female offspring to develop regular outgrowths of the body wall, or humps. A continuous spectrum of interme