Abstract
Scanning cytophotometric DNA measurements on Feulgenstained nuclei from vegetative and reproductive buds of various age were made in three plants, Sambucus racemosa, Scilladecidua,and Rhoeo discolor. In all three species, a certain portion of the nuclei in reproductive buds exhibited higher 2 C values than the nuclei of vegetative buds. As also telophase nuclei displayed increased DNA values, and as preliminary reassociation experiments with Sambucus DNA revealed remarkable differences in the cot curves of vegetative and reproductive bud DNA, the occurrence of an extra DNA (floral DNA) which is involved in the transition to flowering and the triggering of floral differentiation is discussed.
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Nagl, W., Frisch, B., Frölich, E. (1979). Extra-DNA During Floral Induction?. In: Nagl, W., Hemleben, V., Ehrendorfer, F. (eds) Genome and Chromatin: Organization, Evolution, Function. Plant Systematics and Evolution, vol 2. Springer, Vienna. https://doi.org/10.1007/978-3-7091-8556-8_9
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DOI: https://doi.org/10.1007/978-3-7091-8556-8_9
Publisher Name: Springer, Vienna
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