JIA Shangang, WANG Xumin, LI Tianyong, QIAN Hao, SUN Jing, WANG Liang, YU Jun, REN Lufeng, YIN Jinlong, LIU Tao, WU Shuangxiu. Phylogenomic analysis of transcriptomic sequences of mitochondria and chloroplasts of essential brown algae (Phaeophyceae) in China[J]. Acta Oceanologica Sinica, 2014, 33(2): 94-101. doi: 10.1007/s13131-014-0445-2
Citation: JIA Shangang, WANG Xumin, LI Tianyong, QIAN Hao, SUN Jing, WANG Liang, YU Jun, REN Lufeng, YIN Jinlong, LIU Tao, WU Shuangxiu. Phylogenomic analysis of transcriptomic sequences of mitochondria and chloroplasts of essential brown algae (Phaeophyceae) in China[J]. Acta Oceanologica Sinica, 2014, 33(2): 94-101. doi: 10.1007/s13131-014-0445-2

Phylogenomic analysis of transcriptomic sequences of mitochondria and chloroplasts of essential brown algae (Phaeophyceae) in China

doi: 10.1007/s13131-014-0445-2
  • Received Date: 2013-03-22
  • Rev Recd Date: 2013-08-13
  • The chloroplast and mitochondrion of brown algae (Class Phaeophyceae of Phylum Ochrophyta) may have originated from different endosymbiosis. In this study, we carried out phylogenomic analysis to distinguish their evolutionary lineages by using algal RNA-seq datasets of the 1 000 Plants (1KP) Project and publicly available complete genomes of mitochondria and chloroplasts of Kingdom Chromista. We have found that there is a split between Class Phaeophyceae of Phylum Ochrophyta and the others (Phylum Cryptophyta and Haptophyta) in Kingdom Chromista, and identified more diversity in chloroplast genes than mitochondrial ones in their phylogenetic trees. Taxonomy resolution for Class Phaeophyceae showed that it was divided into Laminariales-Ectocarpales clade and Fucales clade, and phylogenetic positions of Kjellmaniella crassifolia, Hizikia fusifrome and Ishige okamurai were confirmed. Our analysis provided the basic phylogenetic relationships of Chromista algae, and demonstrated their potential ability to study endosymbiotic events.
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