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Eukaryotic Cell, March 2008, p. 550-553, Vol. 7, No. 3
1535-9778/08/$08.00+0     doi:10.1128/EC.00396-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

Evolutionary Dynamics of Light-Independent Protochlorophyllide Oxidoreductase Genes in the Secondary Plastids of Cryptophyte Algae{triangledown}

Anna Fong and John M. Archibald*

The Canadian Institute for Advanced Research, Integrated Microbial Biodiversity Program, Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada

Received 29 October 2007/ Accepted 24 December 2007

Plastid genes encoding light-independent protochlorophyllide oxidoreductase (LIPOR) subunits were isolated from cryptophyte algae, the first example of such genes in plastids of secondary endosymbiotic origin. The presence of functional and nonfunctional copies of LIPOR genes in cryptophytes suggests that light-independent chlorophyll biosynthesis is a nonessential pathway in these organisms.

* Corresponding author. Mailing address: Dalhousie University, Department of Biochemistry and Molecular Biology, 5850 College Street, Sir Charles Tupper Medical Building, Halifax B3H 1X5, Canada. Phone: (902) 494-2536. Fax: (902) 494-1355. E-mail: john.archibald{at}dal.ca

{triangledown} Published ahead of print on 4 January 2008.

Eukaryotic Cell, March 2008, p. 550-553, Vol. 7, No. 3
1535-9778/08/$08.00+0     doi:10.1128/EC.00396-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.





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