Elucidation of the genetic architecture stabilizing the heading time in barley (Hordeum vulgare L.).

Maho Okuma, Kazusa Nishimura, Emiko Aoki, Masahiro Tsuchiya, Yuki Monden, Kenji Kato, Hidetaka Nishida

Abstract read

In one paragraph

Article in Planta, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

Structural and coding variation inbioRxiv : the preprint server for biology · 2026
Article

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Maho OkumaGraduate School of Environmental Life, Natural Science and Technology, Okayama University, 1-1-1 Tsushima-Naka, Kita-Ku, Okayama City, Okayama, 700-8530, Japan.

Kazusa NishimuraGraduate School of Environmental Life, Natural Science and Technology, Okayama University, 1-1-1 Tsushima-Naka, Kita-Ku, Okayama City, Okayama, 700-8530, Japan.

Emiko AokiInstitute of Crop Science, National Agriculture and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan.

Masahiro TsuchiyaFaculty of Agriculture, Okayama University, 1-1-1 Tsushima-Naka, Kita-Ku, Okayama City, Okayama, 700-8530, Japan.

Yuki MondenGraduate School of Environmental Life, Natural Science and Technology, Okayama University, 1-1-1 Tsushima-Naka, Kita-Ku, Okayama City, Okayama, 700-8530, Japan.

Kenji KatoGraduate School of Environmental Life, Natural Science and Technology, Okayama University, 1-1-1 Tsushima-Naka, Kita-Ku, Okayama City, Okayama, 700-8530, Japan.

Hidetaka NishidaGraduate School of Environmental Life, Natural Science and Technology, Okayama University, 1-1-1 Tsushima-Naka, Kita-Ku, Okayama City, Okayama, 700-8530, Japan. hnishida@okayama-u.ac.jp.ORCID http://orcid.org/0000-0003-4628-2253

Funding

JSPS KAKENHI 19H02931JSPS KAKENHI 22H02314JSPS KAKENHI 22K05585

6 · The paper itself

Abstract

MAIN

conclusionQHd.ouj-4H and HvPHYC were first found to affect the heading time stability under changing climate in barley, modulated by HvCEN, offering insights for stable early-maturing breeding. Heading time stability is essential for stable production of barley under the recent changes in climate. In this study, we sought to identify QTLs regulating heading time and stability, using RILs derived from a cross between two Japanese cultivars, Kashimamugi and Ishukushirazu, both of which are early-heading cultivars with spring growth habit, but differ in heading time stability. QTL analysis was performed by detecting genome-wide SNPs and InDels by MIG-seq, and detected three heading time QTLs (QHd.ouj-2H, QHd.ouj-4H, and QHd.ouj-5H). Among these, HvCEN and HvPHYC were considered to be the causative genes for QHd.ouj-2H and QHd.ouj-5H, respectively, while the gene underlying QHd.ouj-4H remains unknown. QTL analysis failed to detect QTLs for heading time stability, but analysis of the three heading time QTLs revealed that heading time stability was affected by the QHd.ouj-4H and HvPHYC genotype with the late allele and the early allele causing instability, respectively. Furthermore, interactions were observed between QHd.ouj-4H and HvCEN, and between HvPHYC and HvCEN. In the HvCEN-e background, QHd.ouj-4H had no significant effect on stability, and in the HvCEN-l background, HvPHYC showed no significant effect, indicating that the combination of QTLs is crucial for heading time stability. Since early-maturing cultivars are widely cultivated to avoid abiotic stresses, these results facilitate the breeding of barley cultivars under the changing global climate.

Indexed as

FlowersHordeumQuantitative Trait LociChromosome MappingGenotypePolymorphism, Single NucleotideTime FactorsBarleyBreedingClimate changeFlowering timeHeading time

Identifiers

PMID41842996

DOI10.1007/s00425-026-04945-9

PMCPMC12995937

What OpenQuestion holds

Textmetadata

LicenceCC BY

Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.