反转录转座子

阐述了部分柑橘芽变性状形成的细胞学机理和分子机理，指出目前对芽变的研究主要集中在反转录转座子的插入、DNA甲基化、基因结构和表达差异等方面。

The study on the cellular and molecular mechanism of the citrus mutated characteristics is particularly introduced . The research on citrus bud mutation is focusing on retrotransposon insertion , DNA methylation and the difference of gene structure and expression .

反转录转座子（retrotransposon）是一类通过RNA实现转座的遗传因子，以多拷贝形式广泛存在于真核生物基因组中。

Retrotransposon is a type of genetic element mobilized via RNA intermediate , which is widely distributed in eukaryotic genomes with high copy numbers .

证实了反转录转座子在外界胁迫环境的影响下，会发生转座，在DNA序列中发生了位置的变化。

Confirmed Retrotransposons in the outside world under the influence of a coercive environment , transposition occurs in the DNA sequence changes have taken place in the location .

Southern杂交分析表明，籽粒苋中的copia类反转录转座子以多拷贝形式存在。

Southern blot indicated that amaranth genome contained multiple copies of retrotransposons .

基于反转录转座子的REMAP和IRAP指纹图谱技术

Technology of REMAP and IRAP Fingerprinting Map Based on Retrotransposon

以上免疫共沉淀实验、ChIP检测和基因研究结果表明，hnRNPA2/B1可以选择性结合反转录转座子并且募集具有沉默转座子功能的HP1。

Our results from co-immunoprecipitation experiments , ChIP assays and genetic studies suggest that hnRNP A2 / B1 could bind to selective retrotransposons and recruit HP1 for transposon silencing .

籽粒苋copia类反转录转座子的初步研究

Preliminary analysis on copia-like retrotransposons in Amaranthus

植物反转录转座子是植物基因组中一类可移动的遗传元件，可分为LTR反转录转座子和非LTR反转录转座子两类。

Retrotransposons are a class of mobile genetic elements that are particularly abundant in plant genomes . Retrotransposons can be divided into two major groups : the long terminal repeat ( LTR ) and the non-LTR retrotransposons .

本研究首次报道了籽粒苋中也存在copia类反转录转座子，进一步验证了copia类反转录转座子广泛存在于高等植物中。

Four species of Amaranthus were first detected to contain copia like retrotransposons , further confirming the ubiquity of copia like retrotransposons in higher plants .

植物反转录转座子及其分子标记

Plant Retrotransposons and Their Molecular Markers

在一些生物的和非生物的逆境条件下，反转录转座子的转录可以被激活。

Many of the plant retrotransposons are transcriptionally activated by various biotic and abiotic stress factors .

植物反转录转座子的研究进展

Progress on Plant Retrotransposons

概述了植物反转录转座子的类型结构及作为遗传工具在生物学中的作用。

The types and structures of plant retrotransposons were summarized . The retrotransposons were used as genetic tools in plant biology .

而反转录转座子作为植物基因组的重要组成成分，其是真核细胞中分布最广泛的可移动的基因单元。

Retrotransposons and plant genome as an important component of the composition , it is the distribution of eukaryotic cells may be the most extensive mobile genetic element .

文中对反转录转座子的类型、结构与特点进行综述，并探讨其作为分子标记在现代生物学中的应用。

In this paper , types of plant retrotransposons and their structure and characteristics are summarized , and their use as molecular markers in modern ( biology ) is also discussed .

利用Tyl/copia-like类反转录转座子转座酶的保守区域设计引物，从菰基因组中扩增得到了反转录酶基因片段序列。

Ty1 / copia-like sequences were amplified from Zizania latifolia ( Griseb ) genomic DNA , by PCR with degenerate oligonucleotide primers corresponding to highly conserved domains in the Ty1 / copia-like retrotransposons .

从反转录转座子背身的特性来看，在受到离子束的辐照后，发生转座，在烟草植株在形态上展示出一些较明显的变化。

Retrotransposons from the back of the characteristics are , by ion beam irradiation , the occurrence of transposition in tobacco plants on show in the form of some of the more obvious changes .

本文综述了近几年来在植物反转录转座子方面的研究进展，主要包括植物反转录转座子的结构、特征、活性及其对基因组的影响和它们在功能基因组学中的应用。

In this paper , the progress of plant retrotransposons for recent years is systematically reviewed from the following aspects : structure , charateristics , activation , effection of plant genome and application of fuctional genomics .