An analysis of the effect of changing physiological conditions on genetic stability, in terms of epigenetic changes, such as DNA, methylation patterns, and multiplicity of repetitive DNA, was carried out on tomato cell clones grown on media supplemented with different auxin/cytokinin ratios. The effect of endogenous variation in phytohormone equilibria was also indirectly analysed through a comparison of auxotrophic or habituated (autotrophic) cell clones and the differentiated leaf tissue. The data obtained showed significant variation in methylation and multiplicity levels both between clones and between treatments, clearly suggesting a contemporary influence of exogenous hormonal treatments and of the initial/endogenous physiological state of the treated tissue on both phenomena studied.

Genome flux in tomato auto and auxotrophic cell clones cultured in different auxin/cytokinin equilibria. 1: DNA multiplicity and methylation levels / P. Bogani; A. Simoni; P. Bettini; M. Mugnai; M.G. Pellegrini; M. Buiatti. - In: GENOME. - ISSN 0831-2796. - STAMPA. - 38:(1995), pp. 902-912. [10.1139/g95-119]

Genome flux in tomato auto and auxotrophic cell clones cultured in different auxin/cytokinin equilibria. 1: DNA multiplicity and methylation levels.

BOGANI, PATRIZIA;BETTINI, PRISCILLA PAOLA;PELLEGRINI, MARIA GABRIELLA;BUIATTI, MARCELLO
1995

Abstract

An analysis of the effect of changing physiological conditions on genetic stability, in terms of epigenetic changes, such as DNA, methylation patterns, and multiplicity of repetitive DNA, was carried out on tomato cell clones grown on media supplemented with different auxin/cytokinin ratios. The effect of endogenous variation in phytohormone equilibria was also indirectly analysed through a comparison of auxotrophic or habituated (autotrophic) cell clones and the differentiated leaf tissue. The data obtained showed significant variation in methylation and multiplicity levels both between clones and between treatments, clearly suggesting a contemporary influence of exogenous hormonal treatments and of the initial/endogenous physiological state of the treated tissue on both phenomena studied.
38
902
912
P. Bogani; A. Simoni; P. Bettini; M. Mugnai; M.G. Pellegrini; M. Buiatti
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/250830
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