Evidence map›Paper›PMID 40556134›Full record

ArticlePlant, cell & environment2025

Rice Zinc-Finger Homeodomain 1 (OsZHD1) Finetunes Flowering Time by Modulating the Photoperiodic Response.

Yehyun Yim, Hyeryung Yoon, Sung-Hwan Cho, Lae-Hyeon Cho, Kiyoon Kang, Nam-Chon Paek

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In one paragraph

Article in Plant, cell & environment, 2025. 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

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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

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Yehyun YimDepartment of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea.
Hyeryung YoonDepartment of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea.
Sung-Hwan ChoDepartment of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea.
Lae-Hyeon ChoDepartment of Plant Bioscience, Pusan National University, Miryang, South Korea.
Kiyoon KangDivision of Life Sciences, Incheon National University, Incheon, South Korea.
Nam-Chon PaekDepartment of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea.ORCID 0000-0002-9827-2287

Funding

This study was carried out with the support of the Cooperative Research Program for Agriculture Science and Technology Development (RS-2022-RD010386 to N.-C.P.), Rural Development Administration, Republic of Korea, and Basic Science Research Program through the National Research Foundation (NRF) of Korea grant funded by the Korean Government (RS-2023-00247376 to S.-H.C), and the Incheon National University Research Grant (20240281 to K.K.).
6 · The paper itself

Abstract

Plants exhibit photoperiod sensitivity (PS), which influences flowering time in response to changes in daylength, allowing cereal crops to optimise seed production at different latitudes. Rice is a facultative short-day (SD) plant, flowering early under SD and late under long-day (LD) conditions. This study identifies the rice (Oryza sativa) Zinc-finger Homeodomain 1 (OsZHD1) as a new photoperiod regulator that modulates flowering time in response to daylength. Compared to the parental japonica cultivar, oszhd1 knockout mutants exhibited enhanced PS, resulting in flowering that occurred earlier under SD and later under LD. Conversely, transgenic rice overexpressing OsZHD1 showed a reduction in PS, resulting in delayed flowering under SD and accelerated flowering under LD. RT-qPCR analysis revealed that OsZHD1 plays a role in the Ehd1-Hd3a/RFT1 pathway for flowering induction. We found that OsZHD1 interacts with Hd1 and OsPRR37, but not with Ghd7 or DTH8. In addition, OsZHD1 binds directly to the Ehd1 promoter, potentially downregulating Ehd1 in SD and upregulating it under LD to reduce PS. SNP analysis showed that rice varieties with the japonica-type OsZHD1a allele flowered earlier than those with the indica-type OsZHD1b allele. Taken together, these results highlight a critical role of OsZHD1 in finetuning flowering time at different latitudes.

Indexed as

FlowersHomeodomain ProteinsOryzaPhotoperiodPlant ProteinsGene Expression Regulation, PlantPlants, Genetically ModifiedPolymorphism, Single NucleotidePromoter Regions, GeneticZinc FingersHomeodomain ProteinsPlant Proteinsflowering timenatural variationOsZHD1Rice

Identifiers

PMID40556134
PMCPMC12415411

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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.