Phytoplankton pangenome reveals extensive prokaryotic horizontal gene transfer of diverse functions
文献类型： 外文期刊
作者： Fan, Xiao 1 ; Qiu, Huan 6 ; Han, Wentao 1 ; Wang, Yitao 1 ; Xu, Dong 1 ; Zhang, Xiaowen 1 ; Bhattacharya, Debashish 7 ; Y 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proc, Qingdao, Peoples R China
3.Shanghai Ocean Univ, Key Lab Explorat & Utilizat Aquat Genet Resources, Minist Educ, Shanghai 201306, Peoples R China
4.Shanghai Ocean Univ, Natl Demonstrat Ctr Expt Fisheries Sci Educ, Shanghai 201306, Peoples R China
5.Shanghai Ocean Univ, Int Res Ctr Marine Biosci, Minist Sci & Technol, Shanghai 201306, Peoples R China
6.121 Goucher Terrace, Gaithersburg, MD 20877 USA
7.Rutgers State Univ, Dept Biochem & Microbiol, 59 Dudley Rd,Foran Hall 102, New Brunswick, NJ 08901 USA
期刊名称：SCIENCE ADVANCES （ 影响因子：14.136； 五年影响因子：16.446 ）
ISSN： 2375-2548
年卷期： 2020 年 6 卷 18 期
页码：
收录情况： SCI
摘要： The extent and role of horizontal gene transfer (HGT) in phytoplankton and, more broadly, eukaryotic evolution remain controversial topics. Recent studies substantiate the importance of HGT in modifying or expanding functions such as metal or reactive species detoxification and buttressing halotolerance. Yet, the potential of HGT to significantly alter the fate of species in a major eukaryotic assemblage remains to be established. We provide such an example for the ecologically important lineages encompassed by cryptophytes, rhizarians, alveolates, stramenopiles, and haptophytes ("CRASH" taxa). We describe robust evidence of prokaryotic HGTs in these taxa affecting functions such as polysaccharide biosynthesis. Numbers of HGTs range from 0.16 to 1.44% of CRASH species gene inventories, comparable to the ca. 1% prokaryote-derived HGTs found in the genomes of extremophilic red algae. Our results substantially expand the impact of HGT in eukaryotes and define a set of general principles for prokaryotic gene fixation in phytoplankton genomes.
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