种子重量和质量的14-3-3调节器,用于释放大豆的产量潜力
Bingbing Li1,2,3,4, Ce Yang1,2,3,4, Bin Yong1,2,3,4
1State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, China.
Nature communications
|November 26, 2025
概括
研究人员确定了Glycine max SMALL SEED 6 (GmSMS6) 基因,该基因对大豆种子重量至关重要. 它的调节会影响种子重量和蛋白质含量,为大豆化和作物改进提供了洞察力.
科学领域:
- 植物分子生物学 植物分子生物学
- 农作物遗传学 农作物遗传学
- 农业科学 农业科学
背景情况:
- 种子重量是作物产量的关键决定因素,但大豆 (Glycine max) 中其变化的分子基础尚不清楚.
- 了解种子重量的遗传调节对于提高大豆生产率和质量至关重要.
研究的目的:
- 识别和描述控制大豆种子重量变化的关键基因.
- 阐明已识别的基因调节种子发育和组成的分子机制.
主要方法:
- 甘氨酸最大小种子6 (GmSMS6) 的基因鉴定和功能特征.
- 分析GmSMS6,GmbZIP151和GmUBQ1.1之间的蛋白质与蛋白质相互作用.
- 在各种大豆背景中对GmSMS6淘汰突变的遗传分析.
- 在Glycine max种群中对GmSMS6的哈普洛型分析和选择特征.
主要成果:
- 编码14-3-3蛋白的GmSMS6被确定为大豆种子重量的主要调节者.
- GmSMS6与GmbZIP151和GmUBQ1相互作用,协调GmbZIP151的活性和稳定性,以抑制皮质细胞扩张.
- 淘汰GmSMS6显著增加了种子的重量和蛋白质含量,同时减少了油的积累.
- GmSMS6的功能丧失等位基因是罕见的,但与更重的种子相关的低表达型表现为大豆化过程中选择的证据.
结论:
- GmSMS6作为一个关键的监管中心,控制大豆种子的重量和成分.
- 基因调节,包括潜在的基因丢失或减少表达,在大豆化和产量改善方面发挥着重要作用.
- 准GmSMS6为提高大豆产量和营养质量提供了一个潜在的战略.
相关概念视频
01:56Plant Hormones
27.2K
Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
27.2K
02:33Seed Structure and Early Development of the Sporophyte
30.8K
Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.
30.8K
02:36Meristems and Plant Growth
49.0K
Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.
49.0K
01:59Plant Breeding and Biotechnology
21.4K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
21.4K
02:35Key Elements for Plant Nutrition
23.9K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
23.9K
01:17Gene Regulation During Sporulation
420
Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...
420