In:
Phycological Research, Wiley, Vol. 54, No. 3 ( 2006-09), p. 193-200
Abstract:
To infer the phylogeny of both the host and the endosymbiont of Peridinium quinquecorne Abé, the small subunit (SSU) ribosomal DNA (rDNA) from the host and two genes of endosymbiont origin (plastid‐encoded rbc L and nuclear‐encoded SSU rDNA) were determined. The phylogenetic analysis of the host revealed that the marine dinoflagellate P. quinquecorne formed a clade with other diatom‐harbouring dinoflagellates, including Kryptoperidinium foliaceum (Stein) Lindeman, Durinskia baltica (Levander) Carty et Cox and Galeidinium rugatum Tamura et Horiguchi, indicating a single endosymbiotic event for this lineage. Phylogenetic analyses of the endosymbiont in these organisms revealed that the endosymbiont of P. quinquecorne formed a clade with a centric diatom (SSU data indicated it to be closely related to Chaetoceros ), whereas the endosymbionts of other three dinoflagellates formed a clade with a pennate diatom. The discrepancy between the host and the endosymbiont phylogenies suggests a secondary replacement of the endosymbiont from a pennate to a centric diatom in P. quinquecorne.
Type of Medium:
Online Resource
ISSN:
1322-0829
,
1440-1835
DOI:
10.1111/pre.2006.54.issue-3
DOI:
10.1111/j.1440-1835.2006.00426.x
Language:
English
Publisher:
Wiley
Publication Date:
2006
detail.hit.zdb_id:
2020835-2
SSG:
12
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