| Home | E-Submission | Sitemap | Contact Us |  
top_img
Algae > Volume 15(1); 2000 > Article
Algae 2000;15(1): 1-5.
A Molecular Phylogenetic Perspective on the Primary and Secondary and Secondary Endosymbiotic Origins of Algal Plastids
Debashish Bhattacharya
ABSTRACT
Algae include all photosynthetic eukaryotes excluding land plants. The algae are of a polyphyletic origin and have gained their photosynthetic organelles (plastids) through symbiosis. In this review I present evidence that supports the idea that a single primary symbiosis involving a cyanobacterium gave rise to a proto-alga that was the common ancestor of the three primary algal lineages (Chlorophyta, Rhodophyta, Glaucocystophyta). Members of the Chlorophyta and Rhodophyta then gave rise to all other algal plastids through secondary symbioses. All secondary symbioses appear to be independent events involving different algal synbionts. This hypothesis is supported origins of the secondary plastids of the Cryptophyta, Haptophyta, and Heterokonta.
Key words: actin, algal evolution, plastid, primary symbiosis, ribosomal RNA, secondary symbiosis


TOOLS
PDF Links  PDF Links
Full text via DOI  Full text via DOI
Download Citation  Download Citation
Share:      
METRICS
1,716
View
19
Download
Related article
Editorial Office
[14348] A-1716, Gwangmyeong Trade Center, 72 Iljik-ro Gwangmyeong-si. Gyeonggi-do, Korea
Tel: +82-2-899-5980  Fax: +82-2-899-5922    E-mail: editalgae@gmail.com
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © The Korean Society of Phycology.                 Developed in M2PI