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Can I read Induction of sexuality in the asexual form of Dugesia tigrina (Girard) on EtoBox?
Induction of sexuality in the asexual form of Dugesia tigrina (Girard) by Roman Kenk is a Environmental Science article available to read on EtoBox.
What is Induction of sexuality in the asexual form of Dugesia tigrina (Girard) about?
Dugesia tigrina ( syn. Euplanaria tigrina, Planaria maculata) reproduces in nature in two different ways ; sexually, by egg capsules, and asexually, by fission. This fact was first observed by Curtis ( '02, p. 556) who studied the life cycle of D. tigrina in the vicinity of Falmouth, Massachusetts. Curtis reported that the animals showed different life cycles in different localities. I n one locality, they reproduced exclusively by fission, in another only by egg capsules, and in two others both by fission and by egg capsules at different seasons. These observations have been repeatedly confirmed in the same localities through subsequent collections (Curtis and Schulze, '24, p. 105). Recently, animals from Curtis's localities were cultured in the laboratory under various external conditions (Kenk, '37, '40). Their characteristic habits of reproduction proved to be, generally, independent of the physico-chemical properties of the environment, and therefore to be determined by their genetic constitution. The species appears to occur in at least two different physiological races, a "sexual" and an "asexual" or "agamic" race. The agamic animals reproduce in the laboratory entirely by f
Who reads Induction of sexuality in the asexual form of Dugesia tigrina (Girard)?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Roman Kenk
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0022-104X)
- Published
- 1941
- Language
- EN
- Field
- Environmental Science (Life Sciences)