Skip to main content
Log in

Candidate gene mining of GA-mediated regulation of pear fruit shape

  • Research Report
  • Published:
Horticulture, Environment, and Biotechnology Aims and scope Submit manuscript

Abstract

Fruit shape is one of the important traits for quality evaluation, classification, and market grading of horticultural crops. In order to explore the genes regulating pear fruit shape formation, pear varieties ‘Huangguan’ and ‘Korla Fragrant Pear’ with significant differences in fruit shape were selected as experimental materials. Through morphological observation, measurement of fruit longitudinal diameter and fruit transverse diameter, and fruit shape index analysis of the pear fruit growth and development period, the formation of pear fruit shape during the young fruit period was preliminarily determined. By analyzing the transcriptome data of ‘Huangguan’ and ‘Korla Fragrant Pear’ at the young fruit stage, 8993 differentially expressed genes were obtained, and the majority of the genes were annotated to the plant hormone signaling pathway, among which gibberellin-related genes accounted for 13.4%. Spraying GA3 at the full-bloom stage can significantly prolong the shape of oriental pear. The results of qRT-PCR showed that the expression level of the gibberellin metabolic pathway gene PbGA2ox11 in ‘Huangguan’ was significantly higher than that in ‘Korla Fragrant Pear’. GA3 treatment inhibited the expression of this gene in ‘Korla Fragrant Pear’, while PP333 promoted the expression. It was speculated that PbGA2ox11 was most likely to regulate the shape of pear fruit by regulating gibberellin metabolism. This study provides a new method for studying fruit shape via the analysis of the gibberellin synthesis metabolic pathway, new resources for the rational use of plant growth regulators, and theoretical and technical support for cultivating excellent fruit shape.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Data availability

All data used and analyzed during this research are included in this article and its additional files. The RNA-seq reads, including ovary, petal, flower, leaves, sepal, bud, stem, and seven pear fruit development stages, were obtained from NCBI (PRJNA309745) (Cao et al. 2019a). The transcriptome data of ‘Huangguan ’were provided by the pear research group of College of Horticulture, Shanxi Agricultural University.

References

Download references

Acknowledgements

The authors thank all contributors to this research for their help. This research was financially supported by the Central Leading Local Science and Technology Development Fund Project (Grant No. YDZJSX2022A042), and the Biological Breeding Project of Shanxi Agricultural University (Grant No. YZGC109), and the Scientific and Postgraduate Innovation Project of Shanxi Province (Grant No. 2021Y322).

Author information

Authors and Affiliations

Authors

Contributions

ZX contributed by methodology, data curation, writing the manuscript. RY contributed by checking the experimental data. YW contributed to the manuscript editing. YM, YL and ZL contributed by methodology. YS, XF and LL contributed by conceptualization, supervision, manuscript editing. All authors have read and approved the final manuscript.

Corresponding author

Correspondence to Liulin Li.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Ethics approval

This work does not contain any studies with human participants or animals performed by any of the authors.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Electronic supplementary material

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Xue, Z., Yang, R., Wang, Y. et al. Candidate gene mining of GA-mediated regulation of pear fruit shape. Hortic. Environ. Biotechnol. (2024). https://doi.org/10.1007/s13580-023-00574-3

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s13580-023-00574-3

Keywords

Navigation