文献类型： 外文期刊

作者： Zeng, Fan-Chun ¹ ; Zhao, You-Jie ¹ ; Zhang, Que-Jie ² ; Gao, Li-Zhi ¹ ;

作者机构： 1.South China Agr Univ, Inst Genom & Bioinformat, Guangzhou, Peoples R China

2.Chinese Acad Sci, Kunming Inst Bot, Plant Germplasm & Genom Ctr, Kunming, Peoples R China

3.Guangdong Acad Agr Sci, Agro biol Gene Res Ctr, Guangzhou, Peoples R China

关键词： LTRtype;LTR retrotransposons;nested insertions;structural complexity;genome evolution

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.753； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2017 年 8 卷

页码：

收录情况： SCI

摘要： The amplification and recombination of long terminal repeat (LTR) retrotransposons have proven to determine the size, organization, function, and evolution of most host genomes, especially very large plant genomes. However, the limitation of tools for an efficient discovery of structural complexity of LTR retrotransposons and the nested insertions is a great challenge to confront ever-growing amount of genomic sequences for many organisms. Here we developed a novel software, called as LTRtype, to characterize different types of structurally complex LTR retrotransposon elements as well as nested events. This system is capable of rapidly scanning large-scale genomic sequences and appropriately characterizing the five complex types of LTR retrotransposon elements. After testing on the Arabidopsis thaliana genome, we found that this program is able to properly annotate a large number of structurally complex elements as well as the nested insertions. Thus, LTRtype can be employed as an automatic and efficient tool that will help to reconstruct the evolutionary history of LTR retrotransposons and better understand the evolution of host genomes. LTRtype is publicly available at: http://www.plantkingdomgdb.com/LTRtype/index.html.