Unravelling host and symbiont phylogenies of halichondrid sponges (Demospongiae, Porifera) using a mitochondrial marker

We present the first comparative phylogenetic analysis of a selected set of marine sponges and their bacterial associates. The Halichondrida form an important order in demosponge systematics and are of a particular interest due to the production of secondary metabolites. We sequenced a fragment of t...

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Bibliographic Details
Published in:Marine biology 2002-08, Vol.141 (2), p.377-386
Main Authors: ERPENBECK, D, BREEUWER, J. A. J, VAN DER VELDE, H. C, VAN SOEST, R. W. M
Format: Article
Language:English
Subjects:
Analysis
Aquatic life
Axinella damicornis
Bacteria
Bacteriology
Biological and medical sciences
CO1 gene
Demospongiae
Ecology
Fundamental and applied biological sciences. Psychology
General aspects
Halichondria
Halichondriidae
Hymeniacidon perlevis
Invertebrates
Marine
Marine biology
Metabolites
Microbiology
Porifera
Scopalina lophyropoda
Secondary metabolites
Suberites suberia
Symbiosis
Systematics
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Summary:We present the first comparative phylogenetic analysis of a selected set of marine sponges and their bacterial associates. The Halichondrida form an important order in demosponge systematics and are of a particular interest due to the production of secondary metabolites. We sequenced a fragment of the cytochrome oxidase subunit 1 (CO1) gene of the sponges and their bacterial associates, compared the reconstructed phylogenies and found evidence for radiation in coevolution. The tree of six host-species associations showed four supported cospeciation events between the sponges and the bacteria. In addition, we present the first gene tree of sponges based on a mitochondrial marker. The tree shows major congruences with previous morphological studies and suggests the applicability of a mitochondrial marker in sponge molecular systematics.
ISSN:0025-3162
1432-1793
DOI:10.1007/s00227-002-0785-x