Markowicz Y, Loiseaux-de Goër S
Laboratoire de Biochimie des Micro-Organismes, Université Joseph Fourier, Grenoble, France.
Curr Genet. 1991 Nov;20(5):427-30. doi: 10.1007/BF00317073.
A phylogenetic tree has been constructed from comparisons of entire 16S rRNA gene sequences from different prokaryotes and from several algal plastids. According to this study, and to previous work on the ribulose-1,5-bisphosphate carboxylase oxygenase (Rubisco) large and small subunit genes, we postulate that: (1) rhodophyte and chromophyte plastid genomes have a common, composite phylogenetic origin which implies at least two different ancestors, a cyanobacterial and a beta-proteobacterial ancestor; (2) chlorophyte (green algae and land plants) plastids have a cyanobacterial ancestor which probably differs from that of rhodophyte and chromophyte plastids, and in any case constitute a different lineage; (3) euglenophyte plastid genomes also seem to have a composite phylogenetic origin which involves two different lineages.
通过比较不同原核生物以及几种藻类质体的完整16S rRNA基因序列，构建了系统发育树。根据这项研究以及之前对核酮糖-1,5-二磷酸羧化酶加氧酶（Rubisco）大亚基和小亚基基因的研究，我们推测：（1）红藻和色藻的质体基因组有一个共同的、复合的系统发育起源，这意味着至少有两个不同的祖先，一个是蓝细菌祖先，另一个是β-变形菌祖先；（2）绿藻（绿藻和陆地植物）质体有一个蓝细菌祖先，这个祖先可能与红藻和色藻质体的祖先不同，无论如何都构成一个不同的谱系；（3）眼虫藻质体基因组似乎也有一个复合的系统发育起源，涉及两个不同的谱系。
