Photoperiod-1 regulates the wheat inflorescence transcriptome to influence spikelet architecture and flowering time

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dc.contributor.authorGauley, A.
dc.contributor.authorPasquariello, M.
dc.contributor.authorYoshikawa, G.V.
dc.contributor.authorAlabdullah, A.K.
dc.contributor.authorHayta, S.
dc.contributor.authorSmedley, M.A.
dc.contributor.authorDixon, L.E.
dc.contributor.authorBoden, S.A.
dc.date.issued2024
dc.descriptionAlso includes Star Methods, pages e1-e4
dc.description.abstractPhotoperiod insensitivity has been selected by breeders to help adapt crops to diverse environments and farming practices. In wheat, insensitive alleles of Photoperiod-1 (Ppd-1) relieve the requirement of long daylengths to flower by promoting expression of floral promoting genes early in the season; however, these alleles also limit yield by reducing the number and fertility of grain-producing florets through processes that are poorly understood. Here, we performed transcriptome analysis of the developing inflorescence using near-isogenic lines that contain either photoperiod-insensitive or null alleles of Ppd-1, during stages when spikelet number is determined and floret development initiates. We report that Ppd-1 influences the stage-specific expression of genes with roles in auxin signaling, meristem identity, and protein turnover, and analysis of differentially expressed transcripts identified bZIP and ALOG transcription factors, namely PDB1 and ALOG1, which regulate flowering time and spikelet architecture. These findings enhance our understanding of genes that regulate inflorescence development and introduce new targets for improving yield potential.
dc.description.statementofresponsibilityAdam Gauley, Marianna Pasquariello, Guilherme V. Yoshikawa, Abdul Kader Alabdullah, Sadiye Hayta, Mark A. Smedley, Laura E. Dixon, and Scott A. Boden
dc.identifier.citationCurrent Biology, 2024; 34(11):2330-2343
dc.identifier.doi10.1016/j.cub.2024.04.029
dc.identifier.issn0960-9822
dc.identifier.issn1879-0445
dc.identifier.orcidBoden, S.A. [0000-0001-5297-4067]
dc.identifier.urihttps://hdl.handle.net/2440/142834
dc.language.isoen
dc.publisherCell Press
dc.relation.granthttp://purl.org/au-research/grants/arc/FT210100810
dc.rights© 2024 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
dc.source.urihttps://doi.org/10.1016/j.cub.2024.04.029
dc.subjectALOG1
dc.subjectflowering time
dc.subjectinflorescence
dc.subjectPhotoperiod-1
dc.subjectspike
dc.subjecttranscriptome
dc.subjectwheat
dc.subject.meshTriticum
dc.subject.meshFlowers
dc.subject.meshPlant Proteins
dc.subject.meshGene Expression Regulation, Plant
dc.subject.meshPhotoperiod
dc.subject.meshInflorescence
dc.subject.meshTranscriptome
dc.titlePhotoperiod-1 regulates the wheat inflorescence transcriptome to influence spikelet architecture and flowering time
dc.typeJournal article
pubs.publication-statusPublished

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