开发野生:小麦遗传改进的进展和前景
Xiubin Tian1, Ziyu Wang1, Wenxuan Liu2
1Laboratory of Advanced Breeding Technologies, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
野生亲属为普通小麦 (Triticum aestivum L.) 提供了至关重要的遗传多样性,以适应气候变化. 利用这些资源可以增强小麦的产量.
科学领域:
- 植物遗传学 植物遗传学
- 农作物科学 农作物科学
- 进化生物学是进化的生物学.
背景情况:
- 常见小麦 (Triticum aestivum L.) 面临由于化和繁殖而减少的遗传多样性.
- 这种遗传瓶限制了小麦适应气候变化和压力的能力.
- 野生亲属代表了用于作物改进的宝贵遗传特征来源.
研究的目的:
- 为了回顾过去一个世纪以来利用小麦野生亲属的进步.
- 评估它们在小麦生产中适应气候变化的潜力.
- 探索气候适应性小麦的基因隔离和预育种策略.
主要方法:
- 关于小麦野生相对利用的理论和技术创新的文献综述.
- 对野生亲属生物和非生物应激耐受性的遗传资源的分析.
- 评估开发适应气候变化的小麦品种的战略.
主要成果:
- 在使用野生亲属用于小麦的疾病和害虫耐药性方面取得了重大进展.
- 野生亲属对非生物应激耐受性的基因的探索已经滞后.
- 野生的亲属具有关键的特征,可以提高小麦对气候变化的抵抗力.
结论:
- 野生亲属对于扩大普通小麦的遗传多样性至关重要.
- 战略利用野生亲属是开发适应气候变化的小麦品种的关键.
- 对野生亲属的非生物应激耐受性基因进行进一步的研究是有必要的.
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