Fiona S.L. Brinkman, Jeffrey L. Blanchard, Artem Cherkasov, Yossef Av-Gay,
Robert C. Brunham, Rachel C. Fernandez, B. Brett Finlay, Sarah P. Otto, B.F.
Francis Ouellette, Patrick J. Keeling, Ann M. Rose, Robert E.W. Hancock, and
Steven J.M. Jones
Evidence That Plant-Like Genes in Chlamydia Species Reflect an
Ancestral Relationship between Chlamydiaceae, Cyanobacteria, and the Chloroplast
Genome Research August 2002, Volume 12, Issue 8 pp. 1159-1167.