谷物作物陆地品种的适应不良发生在产生烟尘的气候灾难之后
Chloee M McLaughlin1,2, Yuning Shi3, Vishnu Viswanathan2
1Intercollege Graduate Degree Program in Plant Biology, Pennsylvania State University, University Park, PA 16802.
bioRxiv : the preprint server for biology
|December 23, 2024
概括
像核战争这样的全球性灾难可能会严重影响农作物产量. 这项研究表明,传统的作物品种 (土地品种) 将变得不适应,威胁到农业的弹性.
科学领域:
- 农业科学 农业科学
- 气候科学 气候科学
- 遗传学 是一个遗传学.
背景情况:
- 全球灾难,如核战争,可以将气溶注入大气中,导致气候发生重大变化.
- 减少太阳辐射和温度下降大大降低了作物生产率,威胁到全球粮食安全.
- 传统的作物品种,或土地品种,特别容易受到快速气候变化的影响.
研究的目的:
- 评估气溶引起的气候变化对四种主要作物的影响:大麦,玉米,大米和.
- 在涉及黑碳气溶的各种核战争场景下模拟这些陆地动物的不适应.
- 确定潜在的陆地品种,可以在灾后条件下提高农业性.
主要方法:
- 利用作物生长模型模拟环境压力因素,推动当地适应.
- 采用了高密度基因组标记的梯度森林抵消 (GF抵消) 方法来分析基因型与环境的关联.
- 通过在常见花园实验中预测玉米陆地品种的本地适应,验证了GF模型.
主要成果:
- 气流抵消模型与预测的气候干扰有很强的一致性.
- 预计所有测试作物的土地种类在引导致的气候变化最严重的地区高度不适应.
- 确定了更适合灾后条件的特定陆地品种基因型,尽管它们通常位于国际范围内.
结论:
- 烟灰产生的灾难将导致农作物陆地品种的全球广泛不适应.
- 陆地品种当前的适应性多样性可能不足以确保农业抵御严重气候变化情景的抵御力.
- 国际多样性和陆地品种的战略选择对于未来的农业弹性规划至关重要.
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