DNA divergency and speciation in Symbiodinium (Dinophyceae)

Relationship among symbiotic dinoflagellates of the genus Symbiodinium derived from seven different host species has been studied by means of DNA/DNA hybridization. DNA homologies range from about 70 to 30%D. Highest homology is regarded as sub-specific level. Based on the characteristics of DNA and...

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Bibliographic Details
Published in:Plant systematics and evolution 1989-01, Vol.163 (3/4), p.153-163
Main Authors: Blank, R.J, Huss, V.A.R
Format: Article
Language:English
Subjects:
Algae
algae and seaweeds
Biological and medical sciences
Biological taxonomies
Cell nucleus
cell ultrastructure
Chloroplasts
Chromosomes
DNA
evolution
Fundamental and applied biological sciences. Psychology
hybridization
karyotyping
new taxa
phenotype
Plant cells
Plant cytology, morphology, systematics, chorology and evolution
plant morphology
Speciation
symbiodinium microadriaticum subsp. condylactis
Symbiosis
Taxa
taxonomy
Thallophyta
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Summary:Relationship among symbiotic dinoflagellates of the genus Symbiodinium derived from seven different host species has been studied by means of DNA/DNA hybridization. DNA homologies range from about 70 to 30%D. Highest homology is regarded as sub-specific level. Based on the characteristics of DNA and phenotypes, Symbiodinium microadriaticum subsp. microadriaticum is separated from Symbiodinium microadriaticum subsp. condylactis. Lowest homology occurs at the methodical background, and is similar to that obtained with DNA of algae belonging to different classes. The data are in excellent agreement with DNA base composition, karyotypes, and morpohological as well as biochemical markers, emphasizing speciation among these gymnodinioid zooxanthellae.
ISSN:0378-2697
1615-6110
DOI:10.1007/BF00936511