Data from: Matrix correspondence tests on the DNA phylogeny of the Tenerife lacertid elucidate both historical causes and morphological adaptation

Previous studies using partial regression Mantel tests of matrix correspondence on within-island geographic variation in the color pattern of the Tenerife (Canary Islands) lacertid lizard (Gallotia galloti) support natural selection for different north--south climatically determined biotopes but do not support any historical cause. However, tests on the DNA phylogeny based primarily on population data from 57 localities on Tenerife support the hypothesis that there were populations on two putative precursor islands that have come into secondary contact and introgressed after these islands were joined to form Tenerife by the eruption of the Canadas edifice. Subsequent partial Mantel tests continue to support the hypothesis that color pattern is adapted to the climatic biotopes even when this phylogenetic information is taken into account by (1) testing for color pattern adaptation separately within each lineage and (2) testing for color pattern adaptation across the entire island while considering the molecular phylogenetic relationships as representing an alternative explanation. Selection has largely expunged any trace of the geological history from current morphological variation, and the introgression of these island populations after an estimated 0.7 million years of separation gives an insight into the relationships between allopatric divergence and reproductive isolation.过往针对特内里费（加那利群岛）正蜥科蜥蜴（Gallotia galloti）体色图案的岛内地理变异开展的研究，采用矩阵对应性偏回归曼特尔检验，结果支持自然选择对南北气候分异生境的适应性分化，但未发现任何历史成因的证据。然而，基于特内里费岛57个采样点的种群数据开展的DNA系统发育分析，则支持如下假说：在加那利巨火山构造喷发、多个原推测岛屿合并形成特内里费岛之前，曾存在两个独立的原初种群，二者随后发生二次接触并产生基因渐渗。后续的偏回归曼特尔检验进一步证实，即便将系统发育信息纳入考量，体色图案仍适配当地气候生境：一是在每个演化支内部单独检验体色图案的适应性，二是将分子系统发育关系作为替代解释，对全岛范围内的体色图案适应性进行检验。自然选择已基本抹去了当前形态变异中所保留的地质历史印记；而经约70万年分化后的岛种群间基因渐渗，也为理解异域分化与生殖隔离之间的关联提供了新视角。