Complete genome analysis of bacteriochlorophyll acontaining Roseicitreum antarcticum ZS2-28~T reveals its adaptation to Antarctic intertidal environment
Complete genome analysis of bacteriochlorophyll acontaining Roseicitreum antarcticum ZS2-28~T reveals its adaptation to Antarctic intertidal environment
复制标题
含叶绿素细菌南极蔷薇ZS2-28~T全基因组分析揭示其对南极潮间带环境的适应
DOI：
10.13679/j.advps.2020.0034
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发表时间：
2021
影响因子：
--
通讯作者：
Ding Haitao
中科院分区：
文献类型：
--
作者：
Zeng Yinxin;Yu Yong;Li Huirong;Luo Wei;Ding Haitao
需氧缺氧光养细菌（AAPB）是一种光能异养原核生物，能够利用光和溶解性有机物作为能源。Roseicitreum antarcticum ZS2-28~T是从南极洲伊丽莎白公主地拉瑟曼山潮间沉积物中分离出来的，能够产生细菌叶绿素a，是Roseicitreum属中唯一物种的模式菌株。利用Illumina HiSeq X和PacBio RSII系统测定了该细菌的全基因组序列。R.antarcticum ZS2-28~T基因组全长4253095 bp，由1条染色体和4个质粒组成。基因组中发现了许多与细菌叶绿素a产生、光合反应、冷适应、盐适应、紫外线抗性和DNA损伤修复相关的基因。此外，还发现了基因组岛和类型在R.antarcticum ZS2-28~T的基因组中检测到IV分泌系统、基因转移剂相关基因，表明该细菌可以通过获取外源核酸来适应其环境。注释的完整基因组序列为R.antarcticum ZS2-28~T在南极沿海地区的环境适应和生态功能提供了遗传学见解。
Aerobic anoxygenic phototrophic bacteria(AAPB)are photoheterotrophic prokaryotes able to use both light and dissolved organic matter as energy sources.Roseicitreum antarcticum ZS2-28~T was isolated from intertidal sediment in the Larsemann Hills,Princess Elizabeth Land,Antarctica,and was able to produce bacteriochlorophyll a.It is the type strain of the sole species within the genus Roseicitreum.The complete genome sequence of the bacterium was determined using Illumina HiSeq X and PacBio RSII systems.The genome of R.antarcticum ZS2-28~T was 4253095 bp and consisted of one chromosome and four plasmids.A number of genes related to the bacteriochlorophyll a production,photosynthetic reaction,cold adaptation,salt adaptation,ultra-violet resistance and DNA damage repairing were found in the genome.In addition to genomic islands and type IV secretion systems,genes related to gene transfer agents were detected in the genome of R.antarcticum ZS2-28~T,suggesting that this bacterium can adapt to its environment by acquiring exogenous nucleic acids.The annotated complete genome sequence provides genetic insights into the environmental adaptation and ecological function of R.antarcticum ZS2-28~T in Antarctic coastal area.