Adapting to extreme environments: hybridisation and the evolution of contemporary heavy metal tolerance

适应极端环境：杂交和当代重金属耐受性的演变

• 批准号: 2431120
• 金额: --
• 依托单位: Bangor University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2431120
• 关键词: Adapting; extreme; environments; hybridisation; evolution

Climate change, urbanisation and exploitation of natural resources increasingly alter the environment, posingsignificant challenges for plants and animals. For species to adapt to such fast paced change, they will either need todraw on new genetic variation, which is likely to emerge very slowly, or on existing standing variation, which ispotentially very fast. Another possibility is that adaptive alleles will be acquired via hybridisation with closely relatedspecies, facilitating rapid adaptation through the re-use of existing adaptive variation. Repeated evolution of the sameadaptive trait offers unique opportunities to investigate genetic underpinning of rapid adaptation, ultimately informingus about the extent to which evolutionary responses to a changing climate might be predictable.

气候变化、城市化和自然资源的开发日益改变着环境，给动植物带来了重大挑战。物种要适应如此快节奏的变化，要么需要利用新的基因变异，这可能会非常缓慢地出现，要么需要利用现有的长期变异，这可能会非常快。另一种可能性是，适应性等位基因将通过与密切相关的物种杂交获得，通过重新使用现有的适应性变异促进快速适应。相同适应性特征的重复进化为研究快速适应的遗传基础提供了独特的机会，最终告知我们对气候变化的进化反应可能是可预测的程度。