Genomic data of Columbia spotted frog (Rana luteiventris)
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In this study, we examined the potential role of thermal adaptation in clinal shifts of life history traits (i.e., lifespan, senescence rate, and recruitment) in the Columbia spotted frog (Rana luteiventris) along a broad temperature gradient in the western USA. We took advantage of extensive capture-recapture datasets of 20,033 marked individuals from eight populations surveyed annually for 14 â 18 years to examine how mean annual temperature and precipitation influenced demographic parameters (i.e., adult survival, lifespan, senescence rate, recruitment, and population growth). After showing that temperature was the main climatic predictor influencing demography, we used RAD-seq data (50,829 SNPs and 6,599 putative CNVs) generated for 352 individuals from 31 breeding sites to identify genomic signatures of thermal adaptation. Our results showed that temperature was negatively associated with annual adult survival and reproductive lifespan and positively associated with senescenc...
本研究以美国西部广泛温度梯度区域内的哥伦比亚斑点蛙(Columbia spotted frog,学名*Rana luteiventris*)为研究对象,探讨了热适应在其生活史性状(即寿命、衰老速率与种群招募率)渐变群变化中的潜在作用。 本研究借助覆盖8个种群、历经14至18年年度调查的20033只标记个体的大规模标记重捕数据集,分析了年平均温度与降水量对种群统计参数(即成体存活率、寿命、衰老速率、种群招募率及种群增长率)的影响。在明确温度为影响种群动态的主要气候预测因子后,我们利用来自31个繁殖位点的352只个体的RAD-seq数据(包含50829个单核苷酸多态性(Single Nucleotide Polymorphism, SNP)位点与6599个推定拷贝数变异(Copy Number Variations, CNV)),对热适应的基因组特征展开了鉴定。 研究结果显示,温度与年度成体存活率及繁殖寿命呈负相关,而与衰老速率呈正相关……



