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Updated: Jul 11, 2025

Determination of the Optimal Chromosomal Locations for a DNA Element in Escherichia coli Using a Novel Transposon-mediated Approach
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Determination of the Optimal Chromosomal Locations for a DNA Element in Escherichia coli Using a Novel Transposon-mediated Approach

Published on: September 11, 2017

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在大麦中识别转录活跃的转位子

Dongying Gao1, Emma Fox-Fogle2,3

  • 1Small Grains and Potato Germplasm Research Unit, USDA-ARS, Aberdeen, ID, 83210, USA. dongying.gao@usda.gov.

BMC genomic data
|November 5, 2023
PubMed
概括

研究人员在大麦中发现了六个新的活跃转子体,揭示了它们最近的移动性和在基因调节中的潜在作用. 这一发现为大麦基因组演变提供了宝贵的见解,并有助于开发新的遗传改进工具.

关键词:
大麦大麦,大麦大麦,大麦大麦.进行比较分析.表达方式表达方式表达基因组 基因组 基因组 基因组 基因组转换的意思就是转换.

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DNA-only transposons are called autonomous transposons since they code for the enzyme transposase that is required for the transposition mechanism. Insertion of transposons can alter gene functions in multiple ways. They can mutate the gene, alter gene expression by introducing a novel promoter or insulator sequence, introduce new splice sites, and change the mRNA transcripts produced, or remodel chromatin structure.
The donor site from where the transposon is excised is either degraded or...
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Transposons, or "jumping genes," are small mobile genetic elements (MGEs) that range from 700 to 40,000 base pairs in length. They are found in all organisms and can move within the same chromosome or transfer to different chromosomes. In some cases, transposons can also jump between different host DNA molecules, such as plasmids or viruses, contributing to genetic variability.Barbara McClintock first discovered these mobile genetic elements in the 1940s while studying maize genetics, and she...
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Overview of Transposition and Recombination

Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...
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