Oswald Jessica A, Boyd Bret M, Szewczak Avery R, LeFebvre Michelle J, Stucky Brian J, Guralnick Robert P, Johnson Kevin P, Allen Julie M, Steadman David W
US Fish and Wildlife Service, National Fish and Wildlife Forensic Laboratory, Ashland, OR, USA.
Florida Museum of Natural History, University of Florida, Gainesville, FL, USA.
Biol Lett. 2025 Jan;21(1):20240464. doi: 10.1098/rsbl.2024.0464. Epub 2025 Jan 8.
Islands are well known for their unique biodiversity and significance in evolutionary and ecological studies. Nevertheless, the extinction of island species accounts for most human-caused extinctions in recent time scales, which have accelerated in recent centuries. Pigeons and doves (Columbidae) are noteworthy for the high number of island endemics, as well as for the risks those species have faced since human arrival. On Caribbean islands, no other columbid has generated more phylogenetic interest and uncertainty than the blue-headed quail-dove, . This endangered Cuban endemic has been considered more similar, both behaviourally and phenotypically, to Australasian species than to the geographically closer 'quail-dove' ( s.l.) species of the Western Hemisphere. Here, we use whole genome sequencing from and other newly sequenced columbids in combination with sequence data from previous publications to investigate its relationships. Phylogenomic analyses, which represent 35 of the 51 genera currently comprising the Columbidae, reveal that the blue-headed quail-dove is the sole representative of a lineage diverging early in the radiation of columbids. is sister to the species-rich subfamily Columbinae, which is found worldwide. As a highly distinctive evolutionary lineage lacking close modern relatives, we recommend elevating the conservation priority of .
岛屿以其独特的生物多样性以及在进化和生态研究中的重要性而闻名。然而，在近代时间尺度上，岛屿物种的灭绝占人为导致灭绝的大多数，且在近几个世纪加速。鸽形目（鸠鸽科）因其大量的岛屿特有物种以及自人类到来后这些物种所面临的风险而值得关注。在加勒比海岛屿上，没有其他鸠鸽科物种比蓝头鹑鸠引发了更多的系统发育学兴趣和不确定性。这种濒危的古巴特有物种在行为和表型上被认为与澳大拉西亚的物种比与西半球地理上更近的“鹑鸠”（广义）物种更为相似。在此，我们使用来自[物种名称]和其他新测序的鸠鸽科物种的全基因组测序，并结合先前出版物中的序列数据来研究其亲缘关系。系统发育基因组学分析涵盖了目前鸠鸽科51个属中的35个，结果显示蓝头鹑鸠是鸠鸽科辐射早期分化出的一个谱系的唯一代表。[物种名称]是分布于全球的物种丰富的鸠鸽亚科的姐妹群。作为一个缺乏近缘现代亲属的高度独特的进化谱系，我们建议提高[物种名称]的保护优先级。
