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Updated: May 12, 2026

An Efficient Method for the Isolation of Highly Purified RNA from Seeds for Use in Quantitative Transcriptome Analysis

An Efficient Method for the Isolation of Highly Purified RNA from Seeds for Use in Quantitative Transcriptome Analysis

Published on: January 11, 2017

Two modified RNA extraction methods compatible with transcript profiling and gene expression analysis for cotton

Chengjian Xie¹, Chunyan Wang, Xiaokun Wang

¹College of Life Science, Chongqing Normal University, Chongqing, China.

Preparative Biochemistry & Biotechnology

|April 16, 2013

Summary

This summary is machine-generated.

This study presents two improved methods for extracting high-quality RNA from cotton roots, overcoming challenges posed by contaminants. These protocols are essential for accurate transcript profiling and gene expression analysis in cotton.

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Published on: January 11, 2017

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Laser-Capture Microdissection RNA-Sequencing for Spatial and Temporal Tissue-Specific Gene Expression Analysis in Plants

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Area of Science:

Plant Molecular Biology
Biotechnology
Genomics

Background:

Efficient RNA isolation is crucial for transcript profiling and gene expression analysis.
Cotton roots present extraction challenges due to low RNA content and high levels of polysaccharides and polyphenols.

Purpose of the Study:

To develop simple, reliable protocols for high-quality RNA extraction from cotton roots.
To enable accurate transcript profiling and gene expression analysis in cotton.

Main Methods:

Modification of a plant RNA isolation protocol (Method A).
Adaptation of a commercial reagent kit method (Method B).
Assessment of RNA integrity, purity, and suitability for downstream applications like RT-PCR and quantitative real-time RT-PCR.

Main Results:

Method A yielded high-quality RNA suitable for transcript profiling, confirmed by gel electrophoresis and PCR assays, showing good integrity and purity (A260/280=1.9, A260/230=1.6).
Method B obtained approximately 7 µg of high-quality total RNA per 0.1 g of cotton root sample, adequate for RT-PCR and quantitative real-time RT-PCR.
Both methods successfully supported gene expression analysis in cotton roots infected with Verticillium dahliae.

Conclusions:

The developed RNA extraction protocols are effective for cotton roots, yielding high-quality RNA.
These methods meet the requirements for transcript profiling and quantitative gene expression analysis in cotton.
The protocols facilitate further research into cotton root responses to pathogens and other stimuli.