植物nrDNA ITS假基因研究进展

生物技术通报 ›› 2013, Vol. 0 ›› Issue (11): 14-18.

植物nrDNA ITS假基因研究进展

尤欢^1，3, 周阿涛^2，3, 岳亮亮³, 寸东义³, 李旻³, 丁元明³

1.云南农业大学植物保护学院，昆明 650221；2.昆明理工大学生命科学与技术学院，昆明 650224；3.云南出入境检验检疫局，昆明 650228

收稿日期:2013-05-06 出版日期:2013-11-14 发布日期:2013-11-14
作者简介:尤欢，女，硕士研究生，研究方向：分子分类相关工作；E-mail：youhuan@outlook.com
基金资助:
国家质检总局科技计划项目(2010IK273)

Research on nrDNA ITS Pseudogenes in Plants

You Huan^1，3 Zhou Atao^2，3, Yue Liangliang³, Cun Dongyi³, Li Min³, Ding Yuanming³

(1. College of Plant Protection，Yunnan Agricultural University，Kunming 650221；2. Faculty of Life Science and Technology，Kunming University of Science and Technology，Kunming 650224；3. Yunnan Entry-Exit Inspection and Quarantine，Kunming 650228)

Received:2013-05-06 Published:2013-11-14 Online:2013-11-14

摘要/Abstract

摘要：

核核糖体DNA内转录间隔区(nrDNA ITS)被广泛应用于植物系统发育研究中。近年来，发现在很多植物类群中存在ITS假基因(pseudogenes)，然而这些假基因在系统发育分析中的潜在价值往往被低估，甚至在部分研究中被忽略。主要介绍假基因的生成、特性以及ITS假基因在植物系统学中的应用，并对ITS假基因的研究前景进行展望。

关键词: ITS, 假基因, 进化, 系统分析

Abstract:

The internal transcribed spacer(ITS)of nuclear ribosomal DNA has been widely used for re-constructing phylogenies. In recent years, the occurrence of ITS putative pseudogenes is well documented for many groups of plants, the potential utility of these pseudogenes in phylogenetic analyses has often been underestimated or even ignored in part. In this review, we briefly summarize the formation mechanism of pseudogenes, characteristics of ITS pseudogenes and the applications of the ITS pseudogenes on the phylogenetic study. In addition, the future prospect of scientific researches on ITS pseudogenes was viewed.

Key words: ITS, Pseudogenes, Evolution, Phylogenetic analysis

尤欢, 周阿涛, 岳亮亮, 寸东义, 李旻, 丁元明. 植物nrDNA ITS假基因研究进展[J]. 生物技术通报, 2013, 0(11): 14-18.

You Huan, Zhou Atao, Yue Liangliang, Cun Dongyi, Li Min, Ding Yuanming. Research on nrDNA ITS Pseudogenes in Plants[J]. Biotechnology Bulletin, 2013, 0(11): 14-18.

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