Global urban environmental change drives adaptation in white clover
Global urban environmental change drives adaptation in white clover
复制标题
全球城市环境变化推动白三叶草的适应
DOI：
10.1126/science.abk0989
复制
发表时间：
2022
期刊：
影响因子：
56.9
通讯作者：
Prashad, Cindy
中科院分区：
文献类型：
--
作者：
Santangelo, James S.;Ness, Rob W.;Cohan, Beata;Fitzpatrick, Connor R.;Innes, Simon G.;Koch, Sophie;Miles, Lindsay S.;Munim, Samreen;Peres-Neto, Pedro R.;Prashad, Cindy
城市化以改变生物进化的方式改变环境。我们通过从全球160个城市的6169个种群中取样110019株白三叶草，研究了城市环境变化是否推动了平行进化。植物的孟德尔抗草食防御也会影响对非生物应激源的耐受性。城乡梯度与全球47%城市防御线的演变有关。不同城市间干旱胁迫和植被覆盖的环境变化可以解释线强度的变化。对来自26个城市的2074个基因组的测序结果表明，适应进化最能解释城乡种群的进化，但城市间的平行适应程度存在差异。我们的研究结果表明，城市化导致了全球范围内的适应。
Urbanization transforms environments in ways that alter biological evolution. We examined whether urban environmental change drives parallel evolution by sampling 110,019 white clover plants from 6169 populations in 160 cities globally. Plants were assayed for a Mendelian antiherbivore defense that also affects tolerance to abiotic stressors. Urban-rural gradients were associated with the evolution of clines in defense in 47% of cities throughout the world. Variation in the strength of clines was explained by environmental changes in drought stress and vegetation cover that varied among cities. Sequencing 2074 genomes from 26 cities revealed that the evolution of urban-rural clines was best explained by adaptive evolution, but the degree of parallel adaptation varied among cities. Our results demonstrate that urbanization leads to adaptation at a global scale.