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Peer-reviewedCC BY 4.0The Plant Journal

GmRVE8a, a circadian clock‐associated gene, negatively regulates flowering and maturity in soybean

  • Shibo Sun1,2,3
  • Maoxiang Yang3
  • Tingting Wu3
  • Bingjun Jiang3
  • Xuegang Sun3
  • Hongchang Jia4
  • Xiangyu Yao3
  • Yanhui Sun3
  • Qimeng Li3
  • Peiguo Wang2,3
  • Liwei Jiang2,3
  • Chao Qin3
6 more authors
  • Shan Yuan3
  • Zhaoming Qi1
  • Shi Sun3
  • Huihui Li2,3
  • Tianfu Han1,2,3
  • Baiquan Sun2,3
4 affiliations
  1. 1College of Agriculture Northeast Agricultural University Harbin Heilongjiang 150030 China
  2. 2National Nanfan Research Institute, Chinese Academy of Agricultural Sciences Sanya Hainan 572024 China
  3. 3Ministry of Agriculture and Rural Affairs Key Laboratory of Soybean Biology (Beijing) Institute of Crop Sciences, Chinese Academy of Agricultural Sciences Beijing 100081 China
  4. 4Heihe Branch of Heilongjiang Academy of Agricultural Sciences Heihe Heilongjiang 164300 China
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Abstract

SUMMARY: Precise regulation of flowering time and maturity is critical for achieving high and stable soybean yields, and the circadian clock plays a central role in coordinating these developmental transitions. Soybean is a typical short‐day crop with a pronounced photoperiodic response; however, the molecular mechanisms linking circadian regulation to photoperiod‐dependent flowering and maturity remain incompletely understood. Here, we integrated genome‐wide association analysis with deep learning approaches using 257 soybean germplasm accessions spanning 14 maturity groups and identified GmRVE8a, a homolog of the Arabidopsis circadian clock gene REVEILLE, as a strong candidate locus associated with soybean maturity across two field environments. Haplotype analysis demonstrated that accessions carrying the GmRVE8a

H1 haplotype consistently flowered and matured significantly later than those carrying GmRVE8a

H2 . Functional validation revealed that knockout of GmRVE8a markedly accelerated flowering and maturity, whereas overexpression of GmRVE8a significantly delayed both processes. qRT‐PCR assays further suggested that GmRVE8a may repress flowering and delay maturity by promoting the expression of GmFT4, a flowering‐inhibitory member of the FT family, and is unlikely to act by directly regulating E1 expression. Collectively, our findings suggest GmRVE8a as a circadian clock‐associated negative regulator of soybean flowering and maturity, and highlight it as a promising candidate for molecular breeding aimed at improving adaptation to diverse photoperiodic environments.

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Cite

BibTeXRIS
BibTeX
@article{sun2026gmrve8a,
  title = {{GmRVE8a, a circadian clock‐associated gene, negatively regulates flowering and maturity in soybean}},
  author = {Shibo Sun and Maoxiang Yang and Tingting Wu and Bingjun Jiang and Xuegang Sun and Hongchang Jia and Xiangyu Yao and Yanhui Sun and Qimeng Li and Peiguo Wang and Liwei Jiang and Chao Qin and Shan Yuan and Zhaoming Qi and Shi Sun and Huihui Li and Tianfu Han and Baiquan Sun},
  journal = {The Plant Journal},
  year = {2026},
  month = nov,
  doi = {10.1111/tpj.71205},
  url = {https://doi.org/10.1111/tpj.71205},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - GmRVE8a, a circadian clock‐associated gene, negatively regulates flowering and maturity in soybean
AU  - Shibo Sun
AU  - Maoxiang Yang
AU  - Tingting Wu
AU  - Bingjun Jiang
AU  - Xuegang Sun
AU  - Hongchang Jia
AU  - Xiangyu Yao
AU  - Yanhui Sun
AU  - Qimeng Li
AU  - Peiguo Wang
AU  - Liwei Jiang
AU  - Chao Qin
AU  - Shan Yuan
AU  - Zhaoming Qi
AU  - Shi Sun
AU  - Huihui Li
AU  - Tianfu Han
AU  - Baiquan Sun
PY  - 2026
DA  - 2026/11/04
JO  - The Plant Journal
DO  - 10.1111/tpj.71205
UR  - https://doi.org/10.1111/tpj.71205
AB  - SUMMARY: Precise regulation of flowering time and maturity is critical for achieving high and stable soybean yields, and the circadian clock plays a central role in coordinating these developmental transitions. Soybean is a typical short‐day crop with a pronounced photoperiodic response; however, the molecular mechanisms linking circadian regulation to photoperiod‐dependent flowering and maturity remain incompletely understood. Here, we integrated genome‐wide association analysis with deep learning approaches using 257 soybean germplasm accessions spanning 14 maturity groups and identified GmRVE8a, a homolog of the Arabidopsis circadian clock gene REVEILLE, as a strong candidate locus associated with soybean maturity across two field environments. Haplotype analysis demonstrated that accessions carrying the GmRVE8a  H1 haplotype consistently flowered and matured significantly later than those carrying GmRVE8a  H2 . Functional validation revealed that knockout of GmRVE8a markedly accelerated flowering and maturity, whereas overexpression of GmRVE8a significantly delayed both processes. qRT‐PCR assays further suggested that GmRVE8a may repress flowering and delay maturity by promoting the expression of GmFT4, a flowering‐inhibitory member of the FT family, and is unlikely to act by directly regulating E1 expression. Collectively, our findings suggest GmRVE8a as a circadian clock‐associated negative regulator of soybean flowering and maturity, and highlight it as a promising candidate for molecular breeding aimed at improving adaptation to diverse photoperiodic environments.
SN  - 0960-7412
SN  - 1365-313X
ER  -