2050年植物育种可能会 (或可能不会) 看起来如何?
Filippo M Bassi1, Miguel Sanchez-Garcia1, Rodomiro Ortiz2
1International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat, Morocco.
The plant genome
|July 17, 2023
概括
植物育种的进步通过提高选择精度和减少回收时间,提高了遗传收益. 然而,由于成本上升,维持选择强度仍然具有挑战性,这会影响未来的育种战略.
科学领域:
- 植物育种 植物育种
- 遗传学 遗传学 是一个
- 农业科学 农业科学
背景情况:
- 2000年的植物育种愿景在20年后被重新评估.
- 气候变化和食物系统的转变会影响繁殖目标.
- 消费者对转基因生物的接受已经缓和了人们的期望.
研究的目的:
- 评估未来植物育种愿景的实现情况.
- 通过使用育种方程来分析影响遗传收益的因素.
- 预测植物育种者需要的未来技能.
主要方法:
- 审查植物育种进步及其对育种方程式的影响.
- 对选择精度,遗传差异和回收时间的改进进行分析.
- 讨论维持选择强度和成本上升所面临的挑战.
主要成果:
- 通过实验方法和DNA标记物,在"精确选择"方面取得了显著的改进.
- "遗传变异"通过繁殖前的努力增加.
- 缩短"回收时间"的进展接近分母"1".
结论:
- 由于技术成本,保持"选择强度"是一个关键的挑战.
- 基因组工具和公民科学可能会改变品种和种子企业的概念.
- 未来的植物育种者需要新的技能,可能减少现场时间.
相关概念视频
Plant Breeding and Biotechnology
19.0K
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.
19.0K
Trihybrid Crosses
23.5K
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...
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...
23.5K
Plant Tissue Culture
38.1K
Plant tissue culture is widely used in both primary and applied science. Applications range from plant development studies to functional gene studies, crop improvement, commercial micropropagation, virus elimination, and conservation of rare species.
38.1K
Transgenic Plants
7.3K
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...
7.3K
Monohybrid Crosses
230.4K
Overview
230.4K
Dihybrid Crosses
75.2K
Overview
75.2K


