Genetic and molecular networks mediating potato tuber development

IF 8.7 1区生物学 Q1 PLANT SCIENCES

New Phytologist Pub Date : 2026-09-30 DOI:10.1111/nph.71599

Divyanshu Sinha, Roshan Singh Patel, Varsha Gupta, Jay Prakash Maurya

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引用次数: 0

Abstract

Summary Potato, the world's third most important food crop, is cultivated world‐wide for its tubers that store high‐energy photoassimilates, which are predominantly induced under short photoperiods with cooler night temperatures. The stored photoassimilates ensure plant survival by vegetative propagation and to support subsequent shoot growth. The leaf‐generated main tuberigen signal, StSP6A, upon its transport to stolon, forms tuber‐inducing Tuberigen Activation Complex (TAC). Misregulation or redirection of StSP6A transport toward lateral buds contributes to aerial tuber formation, thereby adversely affecting underground tuber yield. The activity of TAC is inhibited by antituberigens, such as StAST1 and StTFL1, which compete with StSP6A and constitute anti‐TAC. In this review, we provide a comprehensive overview of the genetic and molecular mechanisms underlying underground and aerial tuber formation, their regulation by antituberigen factors, key genes controlling stolon‐to‐tuber transitions, the role of StSWEET‐StSUT transporters in establishing the source–sink relationship essential for tuber development, and the evolution and global dissemination of modern potato cultivars. Collectively, insights from potato provide a valuable framework for understanding the conserved and divergent mechanisms governing storage organ development in other economically important crops.

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介导马铃薯块茎发育的遗传和分子网络

马铃薯是世界第三大粮食作物，因其块茎储存高能光同化物质而在世界范围内种植，这些物质主要是在较短的光周期和较低的夜间温度下诱导产生的。储存的光同化物质通过无性繁殖确保植物存活，并支持随后的芽生长。叶片产生的主要结核素信号StSP6A在运输到匍匐茎后形成块茎诱导结核素激活复合物（TAC）。StSP6A向侧芽转运的错误调控或重定向有助于地上块茎的形成，从而对地下块茎产量产生不利影响。TAC的活性被抗结核药抑制，如StAST1和StTFL1，它们与StSP6A竞争并构成抗TAC。本文综述了地下和空中块茎形成的遗传和分子机制、抗结核因子对块茎形成的调控、控制匍匐茎向块茎转变的关键基因、StSWEET - StSUT转运体在块茎发育源库关系中的作用，以及现代马铃薯品种的进化和全球传播。总的来说，从马铃薯中获得的见解为理解其他重要经济作物储存器官发育的保守和不同机制提供了一个有价值的框架。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

New Phytologist 生物-植物科学

自引率

5.30%

发文量

728

期刊介绍： New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.