At-TAX: A Whole Genome Tiling Array Resource for Arabidopsis thaliana
Author Information
Author(s): Sascha Laubinger, Georg Zeller, Stefan R. Henz, Timo Sachsenberg, Christian K. Widmer, Naouar Naïra, Marnik Vuylsteke, Bernhard Schölkopf, Gunnar Rätsch, Detlef Weigel
Primary Institution: Max Planck Institute for Developmental Biology
Hypothesis
Can whole-genome tiling arrays provide a more comprehensive expression atlas for Arabidopsis thaliana compared to traditional gene-centric arrays?
Conclusion
The At-TAX resource successfully identifies over 1,000 unannotated transcribed regions and provides a comprehensive expression atlas for Arabidopsis thaliana.
Supporting Evidence
- Tiling arrays identified more than 1,000 unannotated transcribed regions.
- Expression profiles were generated for over 9,000 genes not represented on the ATH1 array.
- High correlation of expression estimates was observed between tiling and ATH1 arrays.
Takeaway
This study created a detailed map of how genes in a plant called Arabidopsis thaliana are turned on and off, helping scientists understand plant growth better.
Methodology
RNA samples from 11 different tissues were analyzed using both GeneChip® Tiling 1.0R and ATH1 gene expression arrays.
Potential Biases
Potential biases in gene expression estimates due to probe selection and hybridization properties.
Limitations
The study may not capture all nonpolyadenylated transcripts and relies on the accuracy of existing genome annotations.
Participant Demographics
RNA samples were collected from various tissues of the Arabidopsis thaliana Col-0 strain.
Statistical Information
P-Value
<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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