Application of Arabidopsis receptor kinase FER and cytoplasmic kinase PCRK2 in the regulation of stigma senescence
By regulating the gene expression of Arabidopsis receptor kinase FER and cytoplasmic kinase PCRK2, the problem of stigma lifespan limitation was solved, achieving the effects of extending stigma lifespan and improving pollination efficiency, which is applicable to cross-pollinated species and hybridization breeding.
CN121380177BActive Publication Date: 2026-06-30ANHUI AGRICULTURAL UNIVERSITY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI AGRICULTURAL UNIVERSITY
- Filing Date
- 2025-12-17
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
The availability of the stigma is time-limited, which restricts pollen tube formation and fertilization, affecting pollination efficiency and seed/fruit yield.
Method used
The lifespan of the flower stigma can be prolonged by regulating the gene expression of Arabidopsis receptor kinase FER and cytoplasmic kinase PCRK2. Specific methods include increasing FER gene expression or decreasing PCRK2 gene expression.
Benefits of technology
It extends the functional lifespan of the stigma, improves pollination efficiency and seed/fruit yield, and is suitable for cross-pollinated species and hybridization breeding.
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Smart Images
Figure CN121380177B_ABST
Abstract
This invention belongs to the field of plant biotechnology, specifically, it relates to the application of Arabidopsis receptor kinase FER and cytoplasmic kinase PCRK2. Receptor kinase FER is a key factor in delaying stigma senescence; its loss of function leads to accelerated degeneration of stigma papillary cells. Based on phosphoproteomics and proteomics data, cytoplasmic kinase PCRK2 was identified as a downstream regulator of FER. PCRK2 interacts with FER both in vivo and in vitro. Phenotypic analysis revealed that… PCRK2 Loss of gene function prolongs stigma lifespan, and its expression leads to premature stigma aging. PCRK2 The loss of gene function can alleviate fer‑4 The early senescence of the mutant stigma, which can improve the seed / fruit yield of the species, has promising application prospects.
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