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<p>As the world’s third most important food crop, the yield of potato (<i>Solanum tuberosum</i> L.) is directly determined by the process of tuber formation. <i>Solanum tuberosum</i> Self-Pruning 6A (StSP6A), a key member of Flowering Locus T (FT) family, acts as a mobile tuberigen and serves as a key integrator of diverse tuberization signals. This article systematically reviews how StSP6A, at the center of a complex regulatory network, integrates multiple environmental cues and endogenous factors, such as photoperiod, temperature, and sucrose, to control tuber formation. Elucidating this network would provide a crucial framework for molecular breeding in potato.</p>

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StSP6A: a key regulator integrating multiple signals for potato tuber formation

  • 期刊论文

  • 发表日期：

    2026年3月11日

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  • Ruihan Qin,
  • Rong Yi,
  • Jiajia Feng,
  • Jiayi Liang,
  • Jianhui Bai,
  • Liguo Jia

摘要

As the world’s third most important food crop, the yield of potato (Solanum tuberosum L.) is directly determined by the process of tuber formation. Solanum tuberosum Self-Pruning 6A (StSP6A), a key member of Flowering Locus T (FT) family, acts as a mobile tuberigen and serves as a key integrator of diverse tuberization signals. This article systematically reviews how StSP6A, at the center of a complex regulatory network, integrates multiple environmental cues and endogenous factors, such as photoperiod, temperature, and sucrose, to control tuber formation. Elucidating this network would provide a crucial framework for molecular breeding in potato.