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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

✍ Scribed by Birky, C. W. ;Power, Judith A.

Publisher: John Wiley and Sons
Year: 1969
Tongue: English
Weight: 953 KB
Volume: 170
Category: Article
ISSN: 0022-104X
DOI: 10.1002/jez.1401700204

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✦ Synopsis

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 intermediate forms connects the saccate (S) and fully humped ( H ) morphotypes. We have shown that this response can be studied quantitatively with the use of an ordinal scale for measuring the degree of hump development: five morphotypes are distinguished and assigned scores

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