Creeping Stem 1 regulates directional auxin transport for lodging resistance in soybean

IF 10.1 1区生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Plant Biotechnology Journal Pub Date : 2024-11-13 DOI:10.1111/pbi.14503

Zhiyong Xu, Liya Zhang, Keke Kong, Jiejie Kong, Ronghuan Ji, Yi Liu, Jun Liu, Hongyu Li, Yulong Ren, Wenbin Zhou, Tao Zhao, Tuanjie Zhao, Bin Liu

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引用次数: 0

Abstract

Soybean, a staple crop on a global scale, frequently encounters challenges due to lodging under high planting densities, which results in significant yield losses. Despite extensive research, the fundamental genetic mechanisms governing lodging resistance in soybeans remain elusive. In this study, we identify and characterize the Creeping Stem 1 (CS1) gene, which plays a crucial role in conferring lodging resistance in soybeans. The CS1 gene encodes a HEAT-repeat protein that modulates hypocotyl gravitropism by regulating amyloplast sedimentation. Functional analysis reveals that the loss of CS1 activity disrupts polar auxin transport, vascular bundle development and the biosynthesis of cellulose and lignin, ultimately leading to premature lodging and aberrant root development. Conversely, increasing CS1 expression significantly enhances lodging resistance and improves yield under conditions of high planting density. Our findings shed light on the genetic mechanisms that underlie lodging resistance in soybeans and highlight the potential of CS1 as a valuable target for genetic engineering to improve crop lodging resistance and yield.

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匍匐茎 1 对大豆抗倒伏的定向辅素运输进行调控

大豆是全球范围内的主要作物，在高密度种植的情况下，经常会遇到虫害的挑战，从而导致严重的产量损失。尽管进行了广泛的研究，但大豆抗倒伏性的基本遗传机制仍然难以捉摸。在本研究中，我们鉴定了匍匐茎 1（CS1）基因并描述了其特征，该基因在赋予大豆抗倒伏性方面起着至关重要的作用。CS1 基因编码一种 HEAT 重复蛋白，它通过调节淀粉质沉积来调节下胚轴的向心力。功能分析显示，CS1 活性的丧失会破坏极性辅助素的运输、维管束的发育以及纤维素和木质素的生物合成，最终导致过早结实和根系发育畸形。相反，在高种植密度条件下，增加 CS1 的表达能显著增强抗倒伏能力并提高产量。我们的研究结果揭示了大豆抗宿存的遗传机制，并强调了 CS1 作为基因工程的重要靶标以提高作物抗宿存性和产量的潜力。

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

Plant Biotechnology Journal 生物-生物工程与应用微生物

CiteScore

20.50

自引率

2.90%

发文量

201

审稿时长

1 months

期刊介绍： Plant Biotechnology Journal aspires to publish original research and insightful reviews of high impact, authored by prominent researchers in applied plant science. The journal places a special emphasis on molecular plant sciences and their practical applications through plant biotechnology. Our goal is to establish a platform for showcasing significant advances in the field, encompassing curiosity-driven studies with potential applications, strategic research in plant biotechnology, scientific analysis of crucial issues for the beneficial utilization of plant sciences, and assessments of the performance of plant biotechnology products in practical applications.