Abstract
VON DENFFER1 has recently suggested that the stimulus to flowering is not brought about by the production of a new flowering hormone (‘florigen’) but results from the sudden drop in production of a flower inhibitor substance (‘Blühhemmstoff’). We have been investigating the mode of action of the genes controlling the earliness or lateness of flowering in the garden pea, and have evidence that the late varieties are late because they produce an inhibitor which is absent from the earlies. We have used three varieties: Massey, which normally flowers about the ninth node; Richard Seddon, which flowers at about the fourteenth node; and Telephone, flowering at the seventeenth node. Pellew2 has suggested that a series of three multiple alleles, L, l1 and l2, determine these differences in flowering behaviour, the dominant L gene determining late flowering (eighteenth node). It is probable that our three varieties are respectively l2l2, l1l1 and LL. However, the genetical tests are not yet complete.
Similar content being viewed by others
Article PDF
References
Denffer, D. v., Naturwiss., 37, 296 and 317 (1950).
Pellew, C., J. Genetics, 39, 363 (1940).
Bonner, J., and Thurlow, J., Bot. Gaz., 110, 613 (1949).
Thimann, K. V., and Leopold, A. C., Amer. J. Bot., 36, 342 (1949).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
BARBER, H., PATON, D. A Gene-controlled Flowering Inhibitor in Pisum. Nature 169, 592 (1952). https://doi.org/10.1038/169592a0
Issue Date:
DOI: https://doi.org/10.1038/169592a0
This article is cited by
-
Flowering and branching in Lathyrus odoratus L.: loci sp and b
Theoretical and Applied Genetics (1988)
-
Role of the Leaf in Flowering of Late Pea Varieties
Nature (1966)
-
Cytogenetics of the vegetable crops
The Botanical Review (1962)
-
Physiological genetics of Pisum II.
Heredity (1959)
-
Gibberellic Acid and the Physiological Genetics of Flowering in Peas
Nature (1958)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.