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Natural variations in the promoter alter SGT3 gene expression and affect steroidal glycoalkaloid content in potatoes

Nanling Zhou, Xiaomei Zhang, Ruqian Bai, Chao Wang, Junmei Guan, Ding Fan, Yi Shang, Yuxin Jia( ), Ling Ma( )
School of Life Sciences, Yunnan Normal University, Kunming 650500, China
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Highlights

  • Natural variations in the SGT3 promoter TATA box repeats directly modulate gene expression and SGAs content in tubers, providing a novel molecular marker for low-steroidal glycoalkaloids (SGAs) breeding.

  • The SGT3 promoter haplotype with (TA)10 exhibits significantly higher transcriptional activity, correlating with high SGAs content, while the (TA)13 haplotype is linked to low SGAs in natural germplasms.

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Journal of Integrative Agriculture (JIA)
Pages 3693-3697

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Cite this article:
Zhou N, Zhang X, Bai R, et al. Natural variations in the promoter alter SGT3 gene expression and affect steroidal glycoalkaloid content in potatoes. Journal of Integrative Agriculture (JIA), 2025, 24(9): 3693-3697. https://doi.org/10.1016/j.jia.2025.03.006

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Received: 31 October 2024
Revised: 01 January 2025
Accepted: 26 January 2025
Published: 20 March 2025
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