Diversity hotspots: Coldspots of speciation?
Diversity hotspots: Coldspots of speciation?
复制标题
多样性热点：物种形成冷点？
DOI：
10.1126/science.abf0830
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发表时间：
2020
期刊：
影响因子：
56.9
通讯作者：
H. Morlon
中科院分区：
文献类型：
--
作者：
H. Morlon
从热带安第斯山脉到地中海盆地，地球上的一些地区与生物多样性较低的地区相比，拥有数量惊人的物种。从基因测序中获得的强大的物种水平的遗传（映射进化相关性）是理解这种物种丰富度梯度起源的生态和进化过程的关键。然而，对于物种丰富的群体，即使是在鸟类等研究最多的生物体中，它们仍然是不完整的。在本期的第1343页，Harvey et al.（1）为最大的新热带鸟类群，亚鸟雀形目辐射鸟，收集了一个令人印象深刻的基因组数据集。他们对这些数据的分析表明，在亚临界多样性的热点地区，物种起源较慢，而不是更快，而且时间，而不是物种形成率，解释了亚临界多样性梯度。
Phylogeny of suboscine passerine birds finds lower speciation rates in biodiverse regions From the tropical Andes to the Mediterranean Basin, some regions of Earth host an extraordinary number of species compared to less diverse regions. Robust species-level phylogenies (which map evolutionary relatedness) obtained from genetic sequencing are key for understanding the ecological and evolutionary processes at the origin of such species richness gradients. Yet, they are still incomplete for species-rich groups, even among the most studied organisms such as birds. On page 1343 of this issue, Harvey et al. (1) assemble an impressive phylogenomic dataset for the largest Neotropical bird group, the sub oscine passerine radiation. Their analysis of these data suggests that species origination is slower, rather than faster, in hotspots of suboscine diversity and that time, rather than speciation rates, explains suboscine diversity gradients.
影响因子：
64.8
作者：
Jetz, W.;Thomas, G. H.;Mooers, A. O.
通讯作者：
Mooers, A. O.