Abstract
Transformation technology is a powerful technique to study the role of gene function in improving peanut tolerance to abiotic stress. Thus, developing an effective genetic transformation method for peanut is a very interesting goal. Here, we describe a pollen tube pathway-mediated Agrobacterium tumefaciens transformation method in peanut. It is a simple, efficient, low cost and tissue culture-independent method of peanut transformation, involving injection of a fresh suspension of transformed A. tumefaciens carrying AhBI-1 encoding Bax inhibitor-1 from Arachis hypogaea L. into pollen tubes, integration of the gene into the host plant genome, and rapid screening for transformants using quantitative real-time PCR. The findings confirmed that this strategy provided an efficient (50% frequency of positive transformants) gene transformation technique in peanut. Furthermore, overexpression of the AhBI-1 transgene resulted in increased root and shoot growth even in the absence of exogenous abiotic stress.
Key message
AhBI-1 was transformed into peanut via PTT with high efficiency, and overexpressed AhBI-1 caused enhanced growth of root and shoot in normal condition.
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Data Availability
Data sharing not applicable to this article as no datasets were generated or analyzed during the current study.
Abbreviations
- PCR:
-
Polymerase chain reaction
- PTT:
-
The pollen tube transformation
- PCD:
-
Programmed cell death
- YEP:
-
Yeast Extract Peptone Medium
- OD:
-
Optical density
- AS:
-
Acetosyringone
- MES:
-
2-Ethane sulfonic acid
- CTAB:
-
Cetyltrimethyl ammonium bromide
- WT:
-
Wild-type
- qPCR:
-
Quantitative real-time PCR
- OE:
-
Over expression
- NPBTs:
-
New plant breeding tools
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Acknowledgements
This work was financially supported by the Guangxi Natural Science Foundation (Grant No. 2022GXNSFAA035437), Central Guidance for Local Science and Technology Development Projects (Grant No. ZY22096013), the National Natural Science Foundation of China (Grant No. 31776190), and Training Program for 1000 Young and Middle-aged Key Teachers in Guangxi at 2019.
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JZ conceived the experiments and revised this manuscript; MZ designed the experiments and wrote the manuscript; MZ and JL performed the data analysis; MZ, LJ, AQW, DX, LFH and JZ analyzed the data. All authors have read and agreed to the published version of the manuscript.
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Zhou, M., Luo, J., Xiao, D. et al. An efficient method for the production of transgenic peanut plants by pollen tube transformation mediated by Agrobacterium tumefaciens. Plant Cell Tiss Organ Cult 152, 207–214 (2023). https://doi.org/10.1007/s11240-022-02388-0
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DOI: https://doi.org/10.1007/s11240-022-02388-0