Author

Joshua R. Widhalm

Purdue University West LafayetteORCID 0000-0002-2703-4740Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Plant Biology· 2 Genomics· 1

Signature Assays, Organisms & Methods

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Organism:Arabidopsis· 2 Assay:bulk RNA-seq· 2 Approach:experimental assay· 2 Approach:statistical model· 2 Research Focus:cell signaling & trafficking· 1 Research Focus:chromatin & epigenetic regulation· 1 Research Focus:database / resource· 1 Research Focus:development & morphogenesis· 1

Frequent Co-Authors

Mearaj A. ShaikhiD· 3 shared Amanda L. PendletoniD· 1 shared Chan Yul YooiD· 1 shared Chao‐Jan LiaoiD· 1 shared Chase T HearniD· 1 shared Frederick Mildenhall· 1 shared George W. Meyer· 1 shared Gregory S. GavelisiD· 1 shared

Activity by Year

2023-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 21 mutual co-author links

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3 shared papersPlant Biology

Mearaj A. ShaikhORCID

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3 papers

Recent·Most cited

Thiol depletion and disruption of proteostasis contribute to the phytotoxicity of juglone

George W. Meyer, Mearaj A. Shaikh, Frederick Mildenhall, MaKenzie R Drowns, Chase T Hearn, Xiaojin Wang, Chao‐Jan Liao, Venkatesh P. Thirumalaikumar, Kranthi Varala, Joshua R. Widhalm

This study investigates how juglone affects Arabidopsis thaliana by depleting thiols and disrupting proteostasis, revealing its phytotoxic mechanisms.

bioRxiv · Apr 13, 2026 · PreprintPlant Biology

Transcriptional repression of GTL1 under water-deficit stress promotes anthocyanin biosynthesis to enhance drought tolerance

Noel Anthony Mano, Mearaj A. Shaikh, Joshua R. Widhalm, Chan Yul Yoo, Michael Vincent Mickelbart

The paper identifies GTL1 as a negative regulator of drought tolerance, showing that its repression under water-deficit stress promotes anthocyanin biosynthesis and enhances drought tolerance.

Plant Direct · May 1, 2024Peer-reviewedPlant Biology

A reference genome for the long-term kleptoplast-retaining sea slug Elysia crispata morphotype clarki

Katharine E. Eastman, Amanda L. Pendleton, Mearaj A. Shaikh, Thiti Suttiyut, Raeya A. Ogas, Paxton Tomko, Gregory S. Gavelis, Joshua R. Widhalm, Jennifer H. Wisecaver

This paper reports a draft genome of Elysia crispata morphotype clarki, a sea slug that retains chloroplasts for months, and identifies genes potentially involved in kleptoplast retention.

G3 Genes Genomes Genetics · Oct 10, 2023Peer-reviewedGenomics