Systematics and biogeography of the Old World fern genus Antrophyum
Systematics and biogeography of the Old World fern genus Antrophyum
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DOI：
10.1111/cla.12538
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发表时间：
2023-04-20
期刊：
影响因子：
3.6
通讯作者：
Chung，Kuo-Fang
中科院分区：
文献类型：
--
作者：
Chen，Cheng-Wei;Lindsay，Stuart;Chung，Kuo-Fang
蕨类植物是蕨类蕨类植物中最大的属之一，分布于热带亚洲和太平洋群岛，但也分布于温带的亚洲、澳大利亚、热带非洲和马达加斯加地区。一个多世纪前发表的唯一一篇关于水生植物的专题研究，目前还缺乏对其多样性的现代评估。在这里，我们利用贝叶斯推断、最大似然和最大简约性分析，基于四个叶绿体标记重建了一个全面采样和强有力支持的该属的系统发育。然后从形态、系统学和历史生物地理学的角度对该属的演化进行了探讨。我们用形态计量学的方法研究了9个关键的形态特征，并重建了它们在系统发育上的进化。我们描述了四个新物种，并为物种划分提供了新的见解。我们目前识别了该属的34种，并提供了识别它们的检索表。生物地理分析的结果表明，现存物种的分布在很大程度上受到古代和现代扩散事件的影响。
Antrophyumis one of the largest genera of vittarioid ferns (Pteridaceae) and is most diverse in tropical Asia and the Pacific Islands, but also occurs in temperate Asia, Australia, tropical Africa and the Malagasy region. The only monographic study ofAntrophyumwas published more than a century ago and a modern assessment of its diversity is lacking. Here, we reconstructed a comprehensively sampled and robustly supported phylogeny for the genus based on four chloroplast markers using Bayesian inference, maximum likelihood and maximum parsimony analyses. We then explored the evolution of the genus from the perspectives of morphology, systematics and historical biogeography. We investigated nine critical morphological characters using a morphometric approach and reconstructed their evolution on the phylogeny. We describe four new species and provide new insight into species delimitation. We currently recognize 34 species for the genus and provide a key to identify them. The results of biogeographical analysis suggest that the distribution of extant species is largely shaped by both ancient and recent dispersal events.