Systematics and biogeography of the whistlers (Aves: Pachycephalidae) inferred from ultraconserved elements and ancestral area reconstruction
Systematics and biogeography of the whistlers (Aves: Pachycephalidae) inferred from ultraconserved elements and ancestral area reconstruction
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从超保守元素和祖先区域重建推断的口哨鸟（鸟纲：厚头科）的系统学和生物地理学
DOI：
10.1016/j.ympev.2021.107379
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发表时间：
2022
影响因子：
4.1
通讯作者：
Andersen, Michael J.
中科院分区：
文献类型：
--
作者：
Brady, Serina S.;Moyle, Robert G.;Joseph, Leo;Andersen, Michael J.
岛屿作为进化的自然实验室的作用体现在广泛的、表型可变的谱系中的分化模式上。哨鸟(Aves：Pachycephalidae)是最复杂的鸟类辐射之一，其广泛分布的和当地特有的分类群横跨印度-太平洋广阔的群岛，使它们成为研究岛屿多样化模式和过程的理想群体。在这里，我们提出了一个强大的，物种水平的系统发育所有五个属和85%的物种在厚头虫科，基于数以千计的超服务元素(UCE)产生的目标捕获方法和高通量测序。我们阐明了大头目的系统发育关系，并报道了分化时间和祖先范围的估计。我们探索了多种生物地理编码方案，在这个复杂的地区纳入了地质不确定性。这一群体的生物地理起源很难辨别，可能是由于印度-太平洋动态地球历史的各个方面。澳大拉洛-巴布亚地区可能是冠群哨声的发源地，但具体的祖先区域无法比澳大利亚或新几内亚更准确地识别，在哨声的进化史上，Wallacea可能发挥了比以前认识到的更大的作用。在美拉尼西亚、瓦拉西亚和菲律宾，岛屿群岛的多个独立殖民地导致了现存哨声的相对较高的物种丰富度。这项工作加深了我们对该地区最著名的鸟类谱系之一的理解，并增加了我们对印度-太平洋地区多样化模式和过程的日益增长的了解。
The utility of islands as natural laboratories of evolution is exemplified in the patterns of differentiation in widespread, phenotypically variable lineages. The whistlers (Aves: Pachycephalidae) are one of the most complex avian radiations, with a combination of widespread and locally endemic taxa spanning the vast archipelagos of the Indo-Pacific, making them an ideal group to study patterns and processes of diversification on islands. Here, we present a robust, species-level phylogeny of all five genera and 85% of species within Pachycephalidae, based on thousands of ultraconserved elements (UCEs) generated with a target-capture approach and high-throughput sequencing. We clarify phylogenetic relationships withinPachycephalaand report on divergence timing and ancestral range estimation. We explored multiple biogeographic coding schemes that incorporated geological uncertainty in this complex region. The biogeographic origin of this group was difficult to discern, likely owing to aspects of dynamic Earth history in the Indo-Pacific. The Australo-Papuan region was the likely origin of crown-group whistlers, but the specific ancestral area could not be identified more precisely than Australia or New Guinea, and Wallacea may have played a larger role than previously realized in the evolutionary history of whistlers. Multiple independent colonizations of island archipelagos across Melanesia, Wallacea, and the Philippines contributed to the relatively high species richness of extant whistlers. This work refines our understanding of one of the regions’ most celebrated bird lineages and adds to our growing knowledge about the patterns and processes of diversification in the Indo-Pacific.