Morphogenetic Effects of the Interaction of Floral Mutations Petal-Sepal and Anther in Petal in Papaver somniferumL.

Morphogenetic Effects of the Interaction of Floral Mutations Petal-Sepal and Anther in Petal in... The morphogenetic effects of the interaction of the floral mutations petal-sepal and anther in petal in Papaver somniferumL. with a monocarpic shoot were studied. During analysis of the mutations controlled by the genes ptspand Ant, no plants of the double-mutant class were found in the second generation, in which microsporangia form on the corolla sepal structures. The ratio of phenotypic classes obtained in the experiment corresponds to that inheritance, when the genetic control of mutant characters is realized by nonallele nonlinked genes Antand ptspupon epistatic interaction of these genes. These data were confirmed by analysis of the genotypes of F2plants from the phenotypic class petal-sepal, which include plants that carry both mutant genes Antand ptsp. The results obtained suggest that the gene Ant, which controls the formation of microsporangia in the corolla metameres, is not expressed in the presence of a mutation of the gene ptsp; i.e., microsporangia are not formed in tissues with photosynthesizing cells. It is evident that the development of microsporangia is determined by the level of a product of the gene Ptsp. The role of flavonols (quercetin), inhibitors of photosynthesis, as a mechanism of regulation of activity of the genes controlling morphogenesis of the corolla elements and differentiation of microsporangia, is discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Morphogenetic Effects of the Interaction of Floral Mutations Petal-Sepal and Anther in Petal in Papaver somniferumL.

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1023/A:1012300315891
Publisher site
See Article on Publisher Site

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