相关实验视频

Updated: May 8, 2025

Agrobacterium-Mediated Genetic Transformation, Transgenic Production, and Its Application for the Study of Male Reproductive Development in Rice

Agrobacterium-Mediated Genetic Transformation, Transgenic Production, and Its Application for the Study of Male Reproductive Development in Rice

Published on: October 6, 2020

在混合大米中,工程高频apomixis与正常种子生产

Minglei Song^1,2, Fei Li¹, Zhen Chen¹

¹Henan Key Laboratory of Rice Molecular Breeding and High Efficiency Production, College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China.

|December 25, 2024

概括

科学家们设计了大米以通过种子 (apomixis) 进行克隆繁殖,在正常生育的情况下取得了超过95%的成功. 这一突破使杂交大米的克隆繁殖成为可能,进步了作物育种应用.

科学领域:

植物遗传学植物遗传学
农业科学农业科学
生殖生物学生殖生物学

背景情况:

通过种子进行克隆繁殖 (apomixis) 提供了混合作物繁殖的潜力.
目前在大米中的合成阿波密特表现出低的生育率和繁殖率,限制了实际应用.
精英杂交大米需要稳定,高频的apomixis进行繁殖.

研究的目的:

在精英杂交大米中开发高频,生育正常的合成阿波密特.
为了克服现有的米中apomixis技术的局限性.
为了实现精英杂交大米特征的克隆传播.

主要方法:

增强的米BABYBOOM1 (BBM1) 诱导的原生成与PAIR1,REC8和OSD1基因的同时不活化相结合.
在精英杂交大米品种中产生了阿波密特.
评估了合成阿波密特的农学特征和生育能力.

主要成果:

在精英杂交大米中产生了众多合成阿波密特.
达到超过95.0%的克隆后代频率.
合成的阿波米克特表现出高和正常的生育能力,保持精英杂交农业特征.

结论:

在大米中可以获得具有高透性apomixis的生育正常杂交物.
这项研究为在作物育种中应用合成阿波米克斯提供了基础.
能够实现理想的杂交大米特征的稳定克隆传播.

关键词:

生物科学生物科学分子生物学分子生物学植物生物学植物生物学植物遗传学植物遗传学

更多相关视频

Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits

Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits

Published on: January 3, 2025

Author Spotlight: Soybean Hairy Root Transformation for the Analysis of Gene Function

Author Spotlight: Soybean Hairy Root Transformation for the Analysis of Gene Function

Published on: May 5, 2023

相关概念视频

Dihybrid Crosses

Dihybrid Crosses

Plant Breeding and Biotechnology

Plant 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.

Trihybrid Crosses

Trihybrid Crosses

Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...

Monohybrid Crosses

Monohybrid Crosses