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Pyrolysis Mass Spectrometry as a Technique For Studying Inter- and Intraspecific Relationships in the Genus Fucus

Published online by Cambridge University Press:  11 May 2009

F.G. Hardy
Affiliation:
Department of Marine Sciences and Coastal Management, University of Newcastle, Newcastle upon Tyne, NE1 7RU.
G.W. Scott
Affiliation:
University College Scarborough, Filey Road, Scarborough, North Yorkshire, YOU 3AZ.
N.F. Lightfoot
Affiliation:
Public Health Laboratory, Institute of Pathology, Newcastle General Hospital, Westgate Road, Newcastle upon Tyne, NE4 6BE.
Mulyadi
Affiliation:
Department of Marine Sciences and Coastal Management, University of Newcastle, Newcastle upon Tyne, NE1 7RU.

Extract

Pyrolysis mass spectrometry (PyMS) was used to investigate the relationships of members of the genus Fucus (F. spiralis, F. veskulosus, F. ceranoides and F. serratus), and between F. spiralis and F. spiralis forma nanus. Fucus spiralis and F. spiralis forma nanus were not separable by PyMS and are thus a single species. Fucus spiralis, F. veskulosus, F. ceranoides and F. serratus were separable and their status as species confirmed. The pattern of relatedness between these species suggests a re-evaluation of their evolutionary history in that F. spiralis, F. vesiculosus and F. serratus are more similar to one another than to F. ceranoides. Pyrolysis mass spectrometry was also used to investigate the position of plants identified as putative hybrids between F. spiralis and F. vesiculosus. These plants were found to be intermediate between the two species thus confirming morphological evidence.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1998

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