中文摘要：

系统地研究分析了26种藻类线粒体DNA（mtDNA）全基因组的结构特征，利用细胞色素b基因（cob）对应的氨基酸序列构建了24种藻类和10种高等植物的系统树，并结合国内外mtDNA研究成果，论述和分析了利用mtDNA进行藻类系统进化研究的进展。指出：藻类mtDNA在进化过程中分为“简化起源型”和“原始型”两种类型；根据cob基因氨基酸序列构建系统树显示，绿藻和高等植物聚为一支，而不含叶绿素b的红藻、褐藻等藻类聚为男一支。

英文摘要：

In this article, the molecular structures of 26 algae＇ mitochondrial genomes from the GenBank were analyzed, and a phylogenetic tree based on the amino acid sequences of the cob gene from 24 algae and 10 higher plants was constructed. The research status of algae mtDNA in systematic evolution was also reviewed. It points out that two distinct mitochondrial genome types have been described among the algal lineages： a reduced-derived, Chlamydomonas-like type and an ancestral, Prototheca-like type; According to the phylogenetic tree based on the amino acid sequences of cob, green algae and higher plants clustered into one group, while red algae, brown algae and other algae which do not contain chlorophyll b clustered into another gToup.