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Study of meiotic centromere behaviour in wheat by Fluorescence in situ hybridisation (FISH) (CAT#: STEM-MB-1196-WXH)

Name: Study of meiotic centromere behaviour in wheat by Fluorescence in situ hybridisation (FISH)
SKU: STEM-MB-1196-WXH
Rating: 5 (1 reviews)

Introduction

The environment and plant growth conditions are critical for reproducibility of the protocol. Similarly, the understanding of the duration of each sub-stage of meiosis is essential to minimize the cross-contamination during meiocyte isolation. Wheat is a major cereal crop that possesses a large allopolyploid genome formed through hybridisation of tetraploid and diploid progenitors.

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Principle Applications Procedure Materials

Principle

FISH uses fluorescent probes with complementary base sequences to locate the presence or absence of specific portions of DNA on chromosomes. The probe and target DNA must be denatured with heat or chemicals to break hydrogen bonds in the DNA and to allow hybridisation to occur once the two samples are mixed. The fluorescent probes form new hydrogen bonds with their complementary base pairs on the DNA, and these can then be detected via microscopy.

Applications

Detect and localize the presence or absence of specific DNA sequences on chromosomes.
Detect and localize specific RNA targets (mRNA, lncRNA and miRNA) in cells, circulating tumor cells, and tissue samples.

Procedure

1. Sample preparation
2. Co-denaturation and hybridization
3. Probe detection
4. Wash off of unbound probe
5. Analysis by flow cytometer/fluorescence microscopy

Materials

• Flow cytometer
• Fluorescence microscopy

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