Chromosome numbers and DNA C values in the genus Lippia (Verbenaceae)

The genus Lippia comprises herbs, shrubs, and small trees, including many species with medicinal properties. The species are distributed throughout South and Central America and Tropical Africa, but the majority of them occur in Brazil, Paraguay, and Argentina. The DNA C value of 28 Brazilian specie...

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Bibliographic Details
Published in:Plant systematics and evolution 2011, Vol.291 (1-2), p.133-140
Main Authors: de Campos, José Marcello Salabert, Sousa, Saulo Marçal, Silva, Pâmela Souza, Pinheiro, Lucas Cézar, Sampaio, Fernanda, Viccini, Lyderson Facio
Format: Article
Language:English
Subjects:
Biological taxonomies
Biomedical and Life Sciences
Chromosome morphology
Chromosome number
Chromosomes
Cytometry
Deoxyribonucleic acid
DNA
DNA C value
Evolution
Flow cytometry
Genetic variation
Genomes
Life Sciences
Lippia
Meiosis
Original Article
Outliers (statistics)
Plant Anatomy/Development
Plant Ecology
Plant Sciences
Plant Systematics/Taxonomy/Biogeography
Plants
Ploidies
Polyploidy
Propidium iodide
Shrubs
Species
Verbenaceae
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Summary:The genus Lippia comprises herbs, shrubs, and small trees, including many species with medicinal properties. The species are distributed throughout South and Central America and Tropical Africa, but the majority of them occur in Brazil, Paraguay, and Argentina. The DNA C value of 28 Brazilian species has been estimated by flow cytometry. Estimated DNA C values ranged from 0.825 pg (L. corymbosa) to 2.150 pg (L. brasiliensis). In addition, new chromosome numbers of 12 species have also been described, and meiotic cells with 12, 13, and 14 chromosome pairs were observed. A straightforward correlation between chromosome number and DNA C value was not observed, probably due to two outlier species of Lippia that have been transferred from the genus Lantana. In general, the data confirm previous reports regarding the variation within the taxonomic sections and also suggest a new revision in section Zapania. Aspects of karyotypic evolution of the genus are also discussed.
ISSN:0378-2697
1615-6110
2199-6881
DOI:10.1007/s00606-010-0370-6