Exome Capture of Mytilus galloprovincialis

Global climate change has intensified the need to assess the capacity for natural populations to adapt to rapid shifts in the environment. Reductions in seawater pH constitute a conspicuous global change stressor that is affecting marine ecosystems globally. The data in this project correspond to a study identifying the phenotypic and genetic modifications associated with rapid adaptation to reduced seawater pH in the Mediterranean mussel, Mytilus galloprovincialis. A genetically diverse larval population was reared in two pH environments (pHT 8.1 and 7.4) and changes in the shell size distribution and genetic variation were monitored through settlement. Deposited data corresponds to exome capture data generated from twenty-eight, individually barcoded founding adults, and twenty-two pooled larval samples collected in each pH environment throughout development. Details of experimental design and subsequent analyses are described in Bitter et al. 2019 (doi: https://doi.org/10.1101/700526).

全球气候变化加剧了评估自然种群适应环境快速变化能力的迫切需求。海水pH值下降是一类显著的全球变化胁迫因子，正于全球范围内影响海洋生态系统。本项目数据集对应一项研究，该研究旨在鉴定地中海贻贝（Mytilus galloprovincialis）快速适应海水pH值降低过程中的表型与遗传修饰。研究将遗传多样性丰富的幼虫种群置于两种pH环境（pHT 8.1与7.4）中培育，并在幼体附着全过程中监测壳尺寸分布与遗传变异的动态变化。本项目提交的数据为外显子组捕获（exome capture）数据，其来源包括28个分别带有条形码标记的奠基成虫，以及两个pH环境下各在整个发育阶段采集的22份混合幼虫样本。实验设计与后续分析的详细内容参见Bitter等人2019年发表的研究（doi: https://doi.org/10.1101/700526）。