文献类型： 外文期刊
作者： Yang, Jiawen 1 ; Yuan, Bin 3 ; Wu, Yu 4 ; Li, Meiyu 5 ; Li, Jian 1 ; Xu, Donglin 7 ; Gao, Zeng-hong 1 ; Ma, Guangwei 1 ; Zho 1 ;
作者机构： 1.Sun Yat Sen Univ, Sun Yat Sen Mem Hosp, Med Res Ctr, Guangdong Prov Key Lab Malignant Tumor Epigenet &, Guangzhou, Peoples R China
2.Sun Yat Sen Univ, Sch Life Sci, State Key Lab Biocontrol, Guangzhou, Peoples R China
3.Hubei Acad Agr Sci, Inst Plant Protect & Soil Fertilizer, Wuhan, Peoples R China
4.Sun Yat Sen Univ, Zhongshan Sch Med, Dept Parasitol, Guangzhou, Peoples R China
5.Sun Yat Sen Univ, Key Lab Trop Dis Control, Guangzhou, Peoples R China
6.Sun Yat Sen Univ, Minist Educ, Expt Teaching Ctr, Zhongshan Sch Med, Guangzhou, Peoples R China
7.Guangzhou Acad Agr Sci, Guangzhou, Peoples R China
关键词： Beta satellite DNA; Sau3A sequences; Eukaryotes; Horizontal gene transfer; Primates
期刊名称：GENOMICS （ 影响因子：5.736； 五年影响因子：4.939 ）
ISSN： 0888-7543
年卷期： 2020 年 112 卷 6 期
页码：
收录情况： SCI
摘要： Beta satellite DNA (satDNA), also known as Sau3A sequences, are repetitive DNA sequences reported in human and primate genomes. It is previously thought that beta satDNAs originated in old world monkeys and bursted in great apes. In this study, we searched 7821 genome assemblies of 3767 eukaryotic species and found that beta satDNAs are widely distributed across eukaryotes. The four major branches of eukaryotes, animals, fungi, plants and Harosa/SAR, all have multiple clades containing beta satDNAs. These results were also confirmed by searching whole genome sequencing data (SRA) and PCR assay. Beta satDNA sequences were found in all the primate clades, as well as in Dermoptera and Scandentia, indicating that the beta satDNAs in primates might originate in the common ancestor of Primatomorpha or Euarchonta. In contrast, the widely patchy distribution of beta satDNAs across eukaryotes presents a typical scenario of multiple horizontal transfers.
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