CHROMOSOMES AND DNA IN SYMBIODINIUM FROM AUSTRALIAN HOSTS1
Autor: | Maret Vesk, James W. Udy, Rosalind Hinde |
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Rok vydání: | 1993 |
Předmět: | |
Zdroj: | Journal of Phycology. 29:314-320 |
ISSN: | 1529-8817 0022-3646 |
Popis: | Chromosome counts are reported for five species of Symbiodinium Freudenthal isolated from the host species Plesiastrea versipora, Aiptasia pulchella, Parerythropodium sp., Zoanthus robustus, and Capnella gaboensis based on light and electron microscope studies. Both techniques resulted in large variations in the apparent numbers of chromosomes per nucleus in Symbiodinium isolated from the same host colony. Adjacent regions of condensed DNA were occasionally linked by thin fibrils of DNA, The results suggest that the regions of condensed nuclear DNA in dinoflagellates may not represent whole chromosomes, and so chromosome counts are considered inappropriate for defining Symbiodinium taxa. |
Databáze: | OpenAIRE |
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