Phylogenetic relationships in tribe Lepidieae (Brassicaceae) based on chloroplast DNA restriction site variation

Autor(en): Zunk, K
Mummenhoff, K 
Hurka, H
Stichwörter: CHARACTERS; chloroplast DNA; CRUCIFERAE; EVOLUTION; GENERA; molecular phylogeny; NUCLEAR RIBOSOMAL DNA; Plant Sciences; PLANTS; restriction site variation; SEQUENCES; SOUTHEASTERN UNITED-STATES; SYSTEMATICS; Tribe Lepidieae (Brassicaceae)
Erscheinungsdatum: 1999
Herausgeber: NATL RESEARCH COUNCIL CANADA
Journal: CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE
Volumen: 77
Ausgabe: 10
Startseite: 1504
Seitenende: 1512
Zusammenfassung: 
Tribal and subtribal boundaries within the Brassicaceae are often artificially drawn. Most of the currently recognized tribes and subtribes are separated by only a few morphological characters. Furthermore, these characters are variable even within genera, or they conflict with one another in their distribution patterns, resulting in controversial classification systems. Therefore, tribes and subtribes as traditionally delimited may not reflect natural groups. Up to now no cladistic analysis has been performed in tribe Lepidieae. In the current study, we have analyzed restriction site variation of chloroplast DNA among 41 species representing 19 genera to get insights into phylogenetic relationships within the Lepidieae. Phylogenetic lineages derived from our chloroplast data were critically compared with the traditional concepts. Our chloroplast DNA phylogeny most easily supports the classification of genera in the system of Hayek with some modifications.
ISSN: 00084026

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