PXD070951-1

PXD070951 is an original dataset announced via ProteomeXchange.

Title	Structural variation at lhcb6 underlies genetic variation in photosystem II maximum quantum efficiency in maize (KE0095,KE0109)
Description	Maize is a globally important staple crop, providing food, animal feed, and industrial raw materials. Its extensive native diversity can be utilized to broaden the genetic basis for quantitative trait improvement and advance our understanding of the genotype-phenotype relationships underlying complex trait variation. In a forward genetic approach, we dissect a locus on chromosome 10 with major effects on Photosystem II (PSII) maximum quantum efficiency (Fv/Fm), non-photochemical quenching (NPQ) and biomass accumulation during early growth stages. Integrating molecular and physiological information we show that allelic variation at the gene encoding LIGHT HARVESTING CHLOROPHYLL A/B BINDING PROTEIN6 (LHCB6 also known as CP24), a component of the photosystem II (PSII) light-harvesting complex (LHCII) antenna, underlies this locus. We demonstrate that the allelic variation results from a hAT transposon insertion at lhcb6 and is associated with decreased accumulation of the LHCII antenna components LHCB6 and LHCB3. Based on proteomic analyses we propose candidate genes that partially compensate for the unfavorable early growth effects caused by impaired LHCII antenna assembly. Our work provides novel insights into the function of lhcb6 in the C4 crop maize and demonstrates the value of natural variation for the understanding and genetic improvement of complex photosynthetic processes.
HostingRepository	PRIDE
AnnounceDate	2026-03-16
AnnouncementXML	Submission_2026-03-16_03:54:29.358.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Lukas Würstl
SpeciesList	scientific name: Zea mays (Maize); NCBI TaxID: NEWT:4577;
ModificationList	No PTMs are included in the dataset
Instrument	Orbitrap Eclipse

Revision	Datetime	Status	ChangeLog Entry
0	2025-11-19 11:38:09	ID requested
⏵ 1	2026-03-16 03:54:30	announced

10.1038/s41598-026-42348-8;

Urzinger S, W, ü, rstl L, Avramova V, Urbany C, Scheuermann D, Presterl T, Reuscher S, Mayer M, Brajkovic S, K, ü, ster B, Ouzunova M, Ordas B, Westhoff P, Sch, ö, n CC, Native alleles at lhcb6 shape photosynthetic efficiency and early growth in maize. Sci Rep, 16(1):(2026) [pubmed]

submitter keyword: Landrace, Photosynthesis,Maize

Bernhard Kuster
contact affiliation	Chair of Proteomics and Bioanalytics, Technical University of Munich (TUM), Freising, Germany
contact email	Kuster@tum.de
lab head
Lukas Würstl
contact affiliation	Chair of plant breeding Technical University of Munich (TUM)
contact email	l.wuerstl@tum.de
dataset submitter

Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/03/PXD070951

PRIDE project URI

• PRIDE
  1. PXD070951
     1. Label: PRIDE project
     2. Name: Structural variation at lhcb6 underlies genetic variation in photosystem II maximum quantum efficiency in maize (KE0095,KE0109)