Developmentally regulated systemic endopolyploid in succulents with small genomes

Developmentally regulated systemic endopolyploid in succulents with small genomes

Nuclei from Mesembryanthemum crystallinum (ice plant) exhibit multiple levels of ploidy in every tissue as revealed by flow microfluorometric analysis of isolated nuclei stained with mithramycin. Multiples of the haploid nuclear genome complement (1C) corresponding to 2C, 4C, 8C, 16C, 32C, and 64C w...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1990-10, Vol.250 (4977), p.99-101
Hauptverfasser: De Rocher, E J, Harkins, K R, Galbraith, D W, Bohnert, H J
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creator De Rocher, E J
Harkins, K R
Galbraith, D W
Bohnert, H J
description Nuclei from Mesembryanthemum crystallinum (ice plant) exhibit multiple levels of ploidy in every tissue as revealed by flow microfluorometric analysis of isolated nuclei stained with mithramycin. Multiples of the haploid nuclear genome complement (1C) corresponding to 2C, 4C, 8C, 16C, 32C, and 64C were observed. The distribution of nuclei among the different ploidy levels is tissue-specific and in leaves is characteristic of the stage of development. This type of genome organization has been identified in eight other succulent CAM (crassulacean acid metabolism) plant species with small genomes. Multiploidy may be a common property of this type of plant.
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title Developmentally regulated systemic endopolyploid in succulents with small genomes
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