Chloroplast fragment sequencing data for Primula species

This dataset contains sequencing results of three chloroplast fragments from Primula species: matK, trnL intron, and trnL-trnF intergenic spacer, as well as the rpl16 gene intron. We generated new sequences for 66 species from the samples. In this study, we examine pollen and ovule numbers per flower across 73 species and 99 populations of Primula, encompassing both distylous and homostylous reproductive systems. We investigate whether phylogenetic relationships influence the associations between variation in gamete production, floral traits, and elevation, as well as whether the evolutionary transition from distyly to homostyly leads to parallel changes in gamete production. We employed a Bayesian approach, utilizing the MCMCglmm method to model pollen and ovule traits across species and assess whether they exhibit phylogenetic signals.

本数据集包含报春花属（Primula）物种的3个叶绿体片段测序结果：matK、trnL内含子、trnL-trnF基因间隔区，以及rpl16基因内含子。我们从样本中为66个物种生成了新序列。本研究检测了报春花属73个物种、99个种群的单花花粉和胚珠数量，涵盖二型花柱（distylous）和同型花柱（homostylous）两种生殖系统。我们探究系统发育关系是否影响配子产量变异、花部性状与海拔之间的关联，以及从二型花柱（distyly）向同型花柱（homostyly）的进化转变是否导致配子产量的平行变化。我们采用贝叶斯方法（Bayesian approach），利用MCMCglmm方法对跨物种的花粉和胚珠性状进行建模，并评估这些性状是否表现出系统发育信号。