Abstract
The primitive unicellular red alga Cyanidium caldarium, as well as Cyanidioschyzon merolae, grows in acidic and high temperature conditions around hot springs. Japanese Cyanidium caldarium RK-1 is found and well studied by Japanese researchers, and is known to be different from strain RK-1 used by the group of Germany on plastid genome sequence (Ohta et al. 1997). The phylogenetic analyses of some plastid genes data indicate that Japanese C. caldarium RK-1 is more closely related to C. merolae rather than German C. caldarium RK-1. We aim at complete analysis of the plastid genome sequence of Japanese C. caldarium RK-1.
The plastid genome of C. caldarium RK-1 is known to be a circular DNA composed of about 150kbp on previous study and we have analyzed ~60% of it. Although many of genes are very high similarity to C. merolae, we found a little differences of gene order.
