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Updated: Jun 27, 2026
10:08
Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development
Published on: March 5, 2017
A cross-species transcriptomics approach to identify genes involved in leaf development.
Nathaniel Robert Street1, Andreas Sjödin, Max Bylesjö
1Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, Umeå, Sweden. nathaniel.street@plantphys.umu.se
BMC Genomics
|December 9, 2008
Summary
Researchers identified key transcription factors and gene modules regulating Populus leaf development using gene expression data. This study pinpoints specific gene families and microRNAs crucial for early leaf growth and size control.
Area of Science:
- Plant Molecular Biology
- Genomics
- Developmental Biology
Background:
- Utilized publicly available gene expression data to identify transcription factors and transcriptional modules (regulons) linked to Populus leaf development.
- Compared diverse tissue types to pinpoint genes critical for distinguishing leaf from non-leaf tissues.
- Analyzed transcriptional modules across extensive microarray datasets from various leaf developmental and experimental conditions.
Purpose of the Study:
- Identify transcription factors and gene networks controlling leaf development in Populus.
- Determine key regulators active during early leaf development stages.
- Provide a resource for understanding the genetic basis of leaf size and shape.
Main Methods:
- Analysis of gene expression data from multiple tissue types and experimental conditions.
- Identification of over-represented transcription factor families in leaf tissues.
- Examination of transcriptional module activity during early leaf development.
- Collocation analysis of transcription factors and miRNAs with Quantitative Trait Loci (QTL).
Main Results:
- Identified C2C2-YABBY, CCAAT-HAP3/5, MYB, and ZF-HD families as important for leaf development.
- Selected transcription factors and modules highly active during early leaf development.
- Found two transcription factors and three miRNA396 family members collocate with leaf development QTL.
- Highlighted the potential role of miRNA family 396 in controlling leaf development.
Conclusions:
- Provides a valuable set of candidate genes for Populus leaf development research.
- Enables informed selection of genes for association mapping studies.
- Offers targets for reverse genetics to elucidate genetic control of leaf size and shape.
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