PHYLOGENY OF MOLECULAR CHAPERONE 60 PROTEINS
分子伴娘60类群的系统发育学分析

We present considerable evidence supporting the endosymbiotic hypothesis for the origin of mitochondria and chloroplasts that the member of a-group, purple bacteria, is the ancestor of mitochondria and the member of cyanobacteria is the progenitor of plant chloroplasts. This evidence is based on the relationships among the chaperone 60 proteins, and this result is in very high agreement with that from 16S rRNA sequence analysis. In addition, this result also shows that the alkalophilic Bacillus sp. C-125 is closer to Bacillus subtilis than the other members in genus Bacillus in phylogenetic level.