The Hawaiian radiation of Myrsine (primrose family, Primulaceae) is the only one among the ten most species‐rich Hawaiian plant lineages that has never been included in a phylogenetic analysis. Our study is based on a RADseq dataset of nearly all Hawaiian Myrsine species and a Sanger sequencing dataset based on a worldwide sampling of Myrsine and related genera. Myrsine as a whole might be paraphyletic with respect to the monotypic Macaronesian genera Heberdenia and Pleiomeris, whereas Hawaiian Myrsine is resolved as monophyletic. The Sanger sequencing proved to be insufficient to resolve the Hawaiian lineage, whereas RADseq fully resolved the relationships with high support. Hawaiian Myrsine consists of three main lineages, of which one contains the majority of species and is mainly confined to Kauaʻi, and the other two lineages primarily consist of few widespread species. Although phylogenetic reconstructions delivered fully resolved and supported tree topologies, Quartet Sampling and HyDe analyses reveal phylogenetic incongruence throughout the phylogeny and provide the first molecular evidence of extensive hybridization in the lineage.

中文翻译：

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RADseq 解决了夏威夷鼠尾草（报春科）的系统发育并为杂交提供了证据

Myrsine（报春花科，报春科）的夏威夷辐射是 10 个物种最丰富的夏威夷植物谱系中唯一一个从未被纳入系统发育分析的植物谱系。我们的研究基于几乎所有夏威夷 Myrsine 物种的 RADseq 数据集和基于 Myrsine 和相关属的全球采样的 Sanger 测序数据集。就单型 Macaronesian 属 Heberdenia 和 Pleiomeris 而言，整个 Myrsine 可能是并系的，而 Hawaiian Myrsine 被解析为单系。Sanger 测序被证明不足以解决夏威夷血统，而 RADseq 完全解决了高支持度的关系。夏威夷桃金娘由三个主要谱系组成，其中一个包含大多数物种，主要限于考艾岛，其他两个谱系主要由少数分布广泛的物种组成。尽管系统发育重建提供了完全解析和支持的树拓扑，但​​四重采样和 HyDe 分析揭示了整个系统发育中的系统发育不一致，并提供了谱系中广泛杂交的第一个分子证据。