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Your Position :Home->Past Journals Catalog->2019 Vol.38 No.6

Characteristics of Alu Family in Four Old World Monkey Genomes
Author of the article:ZHANG Xueyan, YU Haoyang, SUN Tianlin, QIU Shi, CAI Yansen, LI Jing*
Author's Workplace:Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu 610065, China
Key Words:Old World monkey; transposable element; Alu family; polymorphic Alu locus; species-specific Alu locus
Abstract:In order to clarify the influence of transposable elements (TEs) on the genomic diversity and evolution of Old World monkeys, this study provided TEs annotation for the 4 Old World monkey species:olive baboon (Papio anubis), rhesus macaque (Macaca mulatta), green monkey (Chlorocebus sabaeus) and proboscis monkey (Nasalis larvatus) based on Repbase database. The types and divergence rates of TEs in the 4 species were analyzed by focusing on the primate-specific Alu families, the insertion/deletion polymorphic Alu loci, and the species-specific Alu (SSA) loci. The results showed that the Alu transposons had more than a million copies (except N. larvatus). The composition and distribution of TEs in the 4 genomes were consistent with their evolutionary relationship. TEs characteristics of P. anubis were similar with M. mulatta, but different from C. sabaeus and N. larvatus. A large number of insertion/deletion polymorphic Alu loci were identified in the 4 genomes by comparative-genomic analysis. We further identified 7 882 SSA loci, and more than 95% of them were belonging to the AluY family. The SSA of the 3 Cercopithecinae species were mainly composed of the AluYRa1 subfamily, while in the N. larvatus were mainly composed of the Alu YRa2 subfamily. The study revealed that the transposition activity of the Alu family might play a significant role in the evolution and the genomic diversity of the Old World monkey.
2019,38(6): 638-645 收稿日期:2019-05-07
分类号:Q959.848;Q349+.55
基金项目:国家自然科学基金项目(31530068;31770415)
作者简介:张雪艳,女,硕士研究生,研究方向:濒危动物保护,E-mail:516004671@qq.com
*通信作者:李静,E-mail:ljtjf@126.com
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