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The first plastid genome of a filamentous taxon 'Bangia' sp. OUCPT-01 in the Bangiales

文献类型: 外文期刊

作者: Cao, Min 1 ; Bi, Guiqi 1 ; Mao, Yunxiang 1 ; Li, Guiyang 4 ; Kong, Fanna 1 ;

作者机构: 1.OUC, Key Lab Marine Genet & Breeding, Minist Educ, Qingdao, Peoples R China

2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China

3.Ocean Univ China, Coll Marine Life Sci, Qingdao, Peoples R China

4.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Utilizat Marine Fisheries Res, Minist Agr, Qingdao 266003, Peoples R China

期刊名称:SCIENTIFIC REPORTS ( 影响因子:4.379; 五年影响因子:5.133 )

ISSN: 2045-2322

年卷期: 2018 年 8 卷

页码:

收录情况: SCI

摘要: Red algae are important primary photosynthetic organisms. The Bangiales comprise a morphologically diverse order of red algae. Until now, complete plastid genomes of the Bangiales were only mapped for foliose species. To date, no filamentous plastomes have been published. The aim of this study was to determine and analyze the complete plastid genome of the filamentous marine species 'Bangia' sp. OUCPT-01. It is a circular molecule, 196,913 bps in length with a guanine-cytosine (GC) content of 33.5%. It has a quadripartite structure with two single copy regions separated by two direct nonidentical repeats. It has 205 protein-coding genes, 37 tRNAs, and 6 rRNAs. Therefore, it has a high coding capacity and is highly similar to other Bangiales species in terms of content and structure. In particular, it reveals that the genera in the Bangiales have highly conserved gene content and plastome synteny. This plastome and existing data provide insights into the phylogenetic relationships among the Bangiales genera of the Rhodophyta. According to its plastid-and mitochondrial genomes, 'Bangia 2' is a sister group to Porphyra. However, the position of Wildemania schizophylla in the Bangiales is still controversial. Our results show that the Bangiales divergence time was similar to 225 million years ago.

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