Evidence map›Paper›PMID 41964754›Full record

ArticleJournal of plant research2026

OsABCB4 disruption impairs auxin homeostasis, delaying heading and compromising agronomic traits in rice.

Zongyue Jiang, Jiayu Li, Jingxin Wei, Lei Huang, Yujia Li, Mengfan Liu, Zihan Zhao, Fangchi Wei, Jiaxuan Guan, Jinxing Jiang and 4 more

Abstract read
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In one paragraph

Article in Journal of plant research, 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.

  1. 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

14 authors.

Zongyue JiangState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Jiayu LiState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Jingxin WeiState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Lei HuangState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Yujia LiState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Mengfan LiuState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Zihan ZhaoState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Fangchi WeiState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Jiaxuan GuanState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Jinxing JiangState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Ling ZhouState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Kangshun HuangState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Fugang HuangState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China.
Meng YangState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, 530004, China. myang@gxu.edu.cn.ORCID http://orcid.org/0000-0001-8882-1417

Funding

Guangxi Natural Science Foundation 2025GXNSFDA069036Guangxi Science and Technology Base and Talent Special Project 2022AC21114Innovation Project of Guangxi Graduate Education YCBZ2025001National Natural Science Foundation of China 32260474Open Research Project of Guangxi Key Laboratory of Agro-environment and Agric-products safety GKLAEAPS2024-04
6 · The paper itself

Abstract

Members of the ABCB transporter subfamily are essential for various aspects of plant growth and development; however, a large number of ABCB proteins are functionally uncharacterized. Here, we report the functional characterization of a rice ABCB member, OsABCB4. Tissue-specific expression analysis of 27 ABCB genes in rice identified a cluster with seed-specific expression, among which OsABCB4 was most highly expressed in developing panicles and seeds. CRISPR/Cas9-generated osabcb4 mutants exhibited a significant delay in heading date. Furthermore, the mutants displayed severe yield-related defects, including dwarfism, reduced panicle length, and a sharp decrease in seed-setting rate, primarily attributable to significantly impaired pollen fertility. Hormone quantification indicated a substantial reduction in indole-3-acetic acid (IAA) content in the panicles of mutant plants. Transcriptome analysis revealed global changes in gene expression, with differentially expressed genes significantly enriched in plant hormone signal transduction and starch/sucrose metabolism pathways. Consistent with these findings, the mutants showed abnormal accumulation of grain storage substances, characterized by significantly decreased starch content and increased protein content, consequently slowing down both seed germination and early seedling growth. Taken together, our results suggest that OsABCB4 may act as a key regulator that influences heading date, pollen fertility, and grain filling by modulating auxin homeostasis in rice.

Indexed as

ATP-Binding Cassette TransportersIndoleacetic AcidsOryzaPlant Growth RegulatorsPlant ProteinsGene Expression ProfilingGene Expression Regulation, PlantHomeostasisPollenSeedsATP-Binding Cassette TransportersIndoleacetic AcidsPlant Growth RegulatorsPlant ProteinsAuxin transporterGrain fillingHeading dateOsABCB4Pollen fertilityRice

Identifiers

PMID41964754

What OpenQuestion holds

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Registered trials

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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.