September 1, 2025Open Access

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

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Abstract

• 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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Zhou et al. (Mon,) studied this question.

synapsesocial.com/papers/69df098ab8d7e945666141b9 https://doi.org/https://doi.org/10.1016/j.jia.2025.03.006

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