Molecular systematic study of the Cactaceae: Using chloroplast DNA variation to elucidate Cactus phylogeny
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- 1 November 1995
- journal article
- Published by British Cactus and Succulent Society in Bradleya
- Vol. 13 (13) , 1-12
Abstract
Summary: Studies of molecular variation within the chloroplast genome have been used to determine phylogenetic relationships within the evolutionarily complex family Cactaceae. Changes detected in the chloroplast DNA (cpDNA) involving structural rearrangements (inversions, deletions, etc.), restriction site variation, and gene sequence variation have provided phylogenetically informative data, useful in the construction of cladograms which infer evolutionary relatedness among the various cactus groups investigated. Examples are provided from studies of representative cacti for each of these types of detected cpDNA variation. Applicability of these methods to resolving fundamental questions in cactus evolution and systematics are also discussed. Zusammenfassung: Untersuchungen der molekularen Variationen des Chloroplasten-Genoms wurden verwendet, um phylogenetische Verwandtschaften in der komplexen Familie der Cactaceae zu bestimmen. Die in der Chloroplasten-DNA (cpDNA) entdeckten Veränderungen (strukturelle Veränderungen wie Inversionen und Deletionen, sowie Variationen in den Restriktionsorten und der Gen-Sequenz) liefern phylogenetisch informative Angaben, die zur Konstruktion von Cladogrammen verwandet werden können, welche die evolutive Verwandtschaft zwischen verschiedenen untersuchten Gruppen der Kakteen illustrieren. Es werden einige Beispiele repräsentativer Untersuchungen für alle gefundenen cpDNA-Variationen vergestellt. Die Möglichkeit, Solche Untersuchungen zur Lösung der fundamentalen Probleme in der Evolution und Systematik der Familie zu verwenden, wird diskutiert.Keywords
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