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Identification of imprinted loci by transcriptome sequencing.

Tomas Babak1

  • 1Department of Biology, Stanford University, Stanford, CA, USA, tomas_babak@merck.com.

Methods in Molecular Biology (Clifton, N.J.)
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Summary
This summary is machine-generated.

This study details transcriptome sequencing for identifying allelic imbalance (AI), a transcriptional bias toward one allele. It focuses on experimental design and analysis for discovering genomic imprinting using whole transcriptome sequencing.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Bioinformatics

Background:

  • High-throughput sequencing enables transcriptome sequencing for mapping allelic imbalance (AI).
  • Allelic imbalance involves biased transcription toward one allele in diploid systems.
  • Genomic imprinting, a parent-of-origin-specific gene expression, is a form of AI.

Purpose of the Study:

  • To provide a protocol for experimental design, analysis, and interpretation of genomic imprinting discovery.
  • To leverage whole transcriptome sequencing for identifying AI and genomic imprinting.

Main Methods:

  • Transcriptome sequencing to generate millions of sequencing reads.
  • Counting sequencing reads mapping to heterozygous SNPs to identify AI.
  • Analyzing reciprocally inherited loci to identify genomic imprinting.

Main Results:

  • The protocol enables the identification of AI by distinguishing allelic origin through SNP analysis.
  • Transcriptome sequencing can effectively discover genomic imprinting patterns.
  • The study focuses on the practical aspects of AI and imprinting discovery.

Conclusions:

  • Whole transcriptome sequencing is a powerful tool for AI and genomic imprinting research.
  • This protocol offers a framework for reproducible imprinting discovery.
  • Understanding AI and imprinting is crucial for diploid genetic systems.