On the fast track: Hybrids adapt more rapidly than parental populations in a novel environment

Rates of hybridization are predicted to increase due to climate change and human activity that cause redistribution of species and bring previously isolated populations into contact. At the same time, climate change leads to rapid changes in the environment, requiring populations to adapt rapidly in order to survive. A few empirical cases suggest hybridization can facilitate adaptation despite its potential for incompatibilities and deleterious fitness consequences. Here we use simulations and Fisher’s Geometric model to evaluate the conditions and time frame of adaptation via hybridization in both diploids and haplodiploids. We find that hybrids adapt faster to new environments compared to parental populations in nearly all simulated scenarios, generating a fitness advantage that can offset intrinsic incompatibilities and last for tens of generations, regardless of whether the population was diploid or haplodiploid. Our results highlight the creative role of hybridization and suggest t..., This dataset contains a collection of SLiM 3.6 (Haller & Messer, 2019) simulation scripts used for the paper \"Kulmuni, Wiley, Otto. 2023. On the fast track: hybrids adapt more rapidly than parental populations in a novel environment\"., SLiM 3.6 (Haller & Messer, 2019)杂交速率预计会因气候变化与人类活动导致的物种分布重构、此前隔离的种群产生接触而上升。与此同时，气候变化引发环境快速变化，迫使种群为存续而迅速适应。少数实证案例显示，尽管杂交存在引发内在不相容性及有害适合度后果的可能，但其仍可推动种群适应。本研究借助模拟实验与费希尔几何模型（Fisher’s Geometric model），评估了二倍体与单倍二倍体种群通过杂交实现适应的条件及时间框架。研究发现，在几乎所有模拟场景中，杂交种群相较于亲本种群，对新环境的适应速度更快，由此产生的适合度优势可抵消内在不相容性，并可持续数十代，无论该种群为二倍体还是单倍二倍体。本研究结果凸显了杂交的创造性作用，并表明…… 本数据集包含为论文《Kulmuni、Wiley、Otto，2023：快车道：杂交种群在新环境中的适应速度快于亲本种群》（原文标题：On the fast track: hybrids adapt more rapidly than parental populations in a novel environment）所使用的一系列SLiM 3.6（Haller & Messer, 2019）模拟脚本。