对植物体育生成的新见解:从机制到应用
Xiaorong Huang1, Meng-Xiang Sun2
1State Key Laboratory of Cellular Stress Biology, Xiamen Key Laboratory of Plant Genetics, School of Life Sciences, Xiamen University, Xiamen, 361102, China; State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
Current opinion in plant biology
|February 20, 2026
概括
陆地植物通过受调节的遗传和表观遗传机制开发精子和卵细胞进行繁殖. 这项研究回顾了游戏生殖,它的进化,以及农业应用,如单 haploid 诱导.
科学领域:
- 植物生殖生物学 植物生殖生物学
- 发育遗传学的发展遗传学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 陆地植物的性繁殖依赖于来自单体性双胞胎生长的雄性和雌性双胞胎的发展.
- 伴生,伴子形成的过程,涉及由独特的遗传和表观遗传机制调节的高度专业化的细胞分化.
研究的目的:
- 总结了解陆地植物精子和卵细胞发育的遗传和表观遗传调节方面的最新进展.
- 为了探索陆地植物间的游戏生成的进化变异.
- 讨论游戏生成原理的农业应用,包括单 haploid 诱导和合成 apomixis.
主要方法:
- 关于最近关于植物游戏生成的研究的文献综述.
- 对遗传和表观遗传调节通路的分析.
- 游戏生成机制的比较进化分析.
- 农业应用研究的讨论.
主要成果:
- 最近的进展突出了精子和卵细胞生成,分化和成熟的复杂遗传和表观遗传控制.
- 在陆地植物谱系中,有明显的进化分歧存在于游戏生成机制中.
- 来自精子的父亲遗传贡献对于受精后的胚胎和胚胎发育至关重要.
结论:
- 了解植物体育生成为性繁殖和进化提供了洞察力.
- 农业中的应用,如平体诱导和合成阿波米克斯,对于作物改进具有重大潜力.
- 需要进一步的研究来解决植物体育生成及其进化轨迹的核心问题.
相关概念视频
01:41Spermatogenesis
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male reproductive...
02:19Morphogenesis
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
02:33Seed Structure and Early Development of the Sporophyte
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.
02:38Asexual Reproduction
Asexual reproduction allows plants to reproduce without growing flowers, attracting pollinators, or dispersing seeds. Offspring are genetically identical to the parent and produced without the fusion of male and female gametes.
01:59Plant Breeding and Biotechnology
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.
02:50Transgenic Plants
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...