Expression of a mammalian RNA demethylase increases flower number and floral stem branching in Arabidopsis thaliana

Abstract RNA methylation plays a central regulatory role in plant biology and is a relatively new target for plant improvement efforts. In nearly all cases, perturbation of the RNA methylation machinery results in deleterious phenotypes. However, a recent landmark paper reported that transcriptome‐w...

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Main Authors: Kasey Markel, Lucas Waldburger, Patrick M. Shih
Format: Article
Language:English
Published: Wiley 2024-08-01
Series:Plant Direct
Online Access:https://doi.org/10.1002/pld3.70000
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author Kasey Markel
Lucas Waldburger
Patrick M. Shih
author_facet Kasey Markel
Lucas Waldburger
Patrick M. Shih
author_sort Kasey Markel
collection DOAJ
description Abstract RNA methylation plays a central regulatory role in plant biology and is a relatively new target for plant improvement efforts. In nearly all cases, perturbation of the RNA methylation machinery results in deleterious phenotypes. However, a recent landmark paper reported that transcriptome‐wide use of the human RNA demethylase FTO substantially increased the yield of rice and potatoes. Here, we have performed the first independent replication of those results and demonstrated broader transferability of the trait, finding increased flower and fruit count in the model species Arabidopsis thaliana. We also performed RNA‐seq of our FTO‐transgenic plants, which we analyzed in conjunction with previously published datasets to detect several previously unrecognized patterns in the functional and structural classification of the upregulated and downregulated genes. From these, we present mechanistic hypotheses to explain these surprising results with the goal of spurring more widespread interest in this promising new approach to plant engineering.
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spelling doaj-art-be5c411bc83c457e8b17441eb19d7a2c2025-02-06T04:40:50ZengWileyPlant Direct2475-44552024-08-0188n/an/a10.1002/pld3.70000Expression of a mammalian RNA demethylase increases flower number and floral stem branching in Arabidopsis thalianaKasey Markel0Lucas Waldburger1Patrick M. Shih2Department of Plant and Microbial Biology University of California Berkeley California USAEnvironmental Genomics and Systems Biology Division Lawrence Berkeley National Laboratory Berkeley California USADepartment of Plant and Microbial Biology University of California Berkeley California USAAbstract RNA methylation plays a central regulatory role in plant biology and is a relatively new target for plant improvement efforts. In nearly all cases, perturbation of the RNA methylation machinery results in deleterious phenotypes. However, a recent landmark paper reported that transcriptome‐wide use of the human RNA demethylase FTO substantially increased the yield of rice and potatoes. Here, we have performed the first independent replication of those results and demonstrated broader transferability of the trait, finding increased flower and fruit count in the model species Arabidopsis thaliana. We also performed RNA‐seq of our FTO‐transgenic plants, which we analyzed in conjunction with previously published datasets to detect several previously unrecognized patterns in the functional and structural classification of the upregulated and downregulated genes. From these, we present mechanistic hypotheses to explain these surprising results with the goal of spurring more widespread interest in this promising new approach to plant engineering.https://doi.org/10.1002/pld3.70000
spellingShingle Kasey Markel
Lucas Waldburger
Patrick M. Shih
Expression of a mammalian RNA demethylase increases flower number and floral stem branching in Arabidopsis thaliana
Plant Direct
title Expression of a mammalian RNA demethylase increases flower number and floral stem branching in Arabidopsis thaliana
title_full Expression of a mammalian RNA demethylase increases flower number and floral stem branching in Arabidopsis thaliana
title_fullStr Expression of a mammalian RNA demethylase increases flower number and floral stem branching in Arabidopsis thaliana
title_full_unstemmed Expression of a mammalian RNA demethylase increases flower number and floral stem branching in Arabidopsis thaliana
title_short Expression of a mammalian RNA demethylase increases flower number and floral stem branching in Arabidopsis thaliana
title_sort expression of a mammalian rna demethylase increases flower number and floral stem branching in arabidopsis thaliana
url https://doi.org/10.1002/pld3.70000
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AT patrickmshih expressionofamammalianrnademethylaseincreasesflowernumberandfloralstembranchinginarabidopsisthaliana