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Infraspecific phylogeny of Pandorina morum (Volvocales, Chlorophyta) inferred from molecular, biochemical and traditional data

Published online by Cambridge University Press:  01 February 1999

MICHAEL SCHAGERL ,
DAVID G. ANGELER  and
ANNETTE W. COLEMAN
MICHAEL SCHAGERL
Affiliation:
Institute of Plant Physiology, Department of Hydrobotany, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria
DAVID G. ANGELER
Affiliation:
Institute of Plant Physiology, Department of Hydrobotany, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria Present address: Consejo Superior de Investigaciones Cientificas, Centro de Ciencias Medioambientales, Serrano 115 dpdo, E-28006 Madrid, Spain.
ANNETTE W. COLEMAN
Affiliation:
Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, Rhode Island 02912, USA
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Abstract

Molecular phylogenetic relationships among sexually isolated subpopulations (syngens) of the morphologically defined volvocacean flagellate Pandorina morum (O. F. Müller) Bory are inferred from sequences of the internal transcribed spacer regions (ITS-1 and ITS-2) of the nuclear ribosomal DNA repeats. The resolved phylogenetic lines are composed of strains with very similar sets of traditional characters, such as zygote aggregation pattern, chromosome number and cell division timing, and are correlated with the distribution pattern of the xanthophyll loroxanthin [(3R,3′R,6′R)-β,ε-carotene-3,19,3′-triol]. Thus, loroxanthin, a phylogenetic character within the Volvocales, is also of value at the infraspecific level in P. morum, a morphologically uniform species complex, within the Volvocales.

Keywords

carotenoidsITS sequencesloroxanthinPandorina morumphylogenysyngensVolvocales
Type
Research Article
Information
European Journal of Phycology , Volume 34 , Issue 1 , February 1999 , pp. 87 - 93
Copyright
© 1999 British Phycological Society

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