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Journal of Plant Research

, Volume 126, Issue 4, pp 461–468 | Cite as

Nuclear DNA content in some species of Lessingianthus (Vernonieae, Asteraceae) by flow cytometry

  • María B. Angulo
  • Massimiliano Dematteis
Regular paper

Abstract

The nuclear DNA content was determined for the first time in 25 species of the South American genus Lessingianthus H.Rob. (Vernonieae, Asteraceae) by flow cytometry. This analysis constitutes the first estimation of the genome size for the Vernonieae tribe. The 2C- and 1Cx-values were calculated in all the species. The 2C-value ranged from 2.04 to 14.34 pg. The 1Cx-value ranged from 0.995 to 1.43 pg. The general tendency indicated a decrease in the 1Cx-value with increasing ploidy level, with some exceptions, in some species the 1Cx-value increased with the ploidy increase. The measuring of DNA content allowed reporting a new cytotype for L. polyphyllus (Sch.Bip.) H.Rob.

Keywords

Asteraceae Polyploidy Vernonieae 1Cx-value 2C-value 

Notes

Aknowledgments

This work has been supported by grants from the Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), the Secretaría General de Ciencia y Técnica de la Universidad Nacional del Nordeste (SGCyT-UNNE) and the Myndel Botanica Foundation.

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Copyright information

© The Botanical Society of Japan and Springer Japan 2012

Authors and Affiliations

  1. 1.Instituto de Botánica del Nordeste (UNNE, CONICET)CorrientesArgentina

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