Chromosome size and DNA values in sundews (Droseraceae)

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 1968 English Publisher:Springer Science and Business Media LLCJournal:Chromosoma, volume 25, pages 96-103 (issn: 0009-5915, eissn: 1432-0886,

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Authors: K. Rothfels; M. Heimburger;

doi: 10.1007/bf00338236

Chromosome size and DNA values in sundews (Droseraceae)

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Abstract

Relative DNA content has been determined Feulgen cytophotometrically and autoradiographically for roottip nuclei of Drosophyllum lusitanicum L., (2n=12), Drosera rotundifolia L. (2x=20), D. intermedia Hayne (2x=20), D. linearis Goldie (2x= 20), D. binata Labill. (3x=32), D. capensis L. (4x= 40), D. spathulata Labill. (8x=80), all Droseraceae. Relative DNA values per diploid genome for Drosophyllum and diploid, triploid, and higher polyploid Drosera were approximately as 16∶4∶2∶1. These values are terms of a geometric series and are compatible with a multistranded (polyneme) interpretation of chromosome structure.

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