Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, USA.
Mol Phylogenet Evol. 2012 Mar;62(3):943-53. doi: 10.1016/j.ympev.2011.11.033. Epub 2011 Dec 13.
The gecko genus Phyllopezus occurs across South America's open biomes: Cerrado, Seasonally Dry Tropical Forests (SDTF, including Caatinga), and Chaco. We generated a multi-gene dataset and estimated phylogenetic relationships among described Phyllopezus taxa and related species. We included exemplars from both described Phyllopezus pollicaris subspecies, P. p. pollicaris and P. p.przewalskii. Phylogenies from the concatenated data as well as species trees constructed from individual gene trees were largely congruent. All phylogeny reconstruction methods showed Bogertia lutzae as the sister species of Phyllopezus maranjonensis, rendering Phyllopezus paraphyletic. We synonymized the monotypic genus Bogertia with Phyllopezus to maintain a taxonomy that is isomorphic with phylogenetic history. We recovered multiple, deeply divergent, cryptic lineages within P. pollicaris. These cryptic lineages possessed mtDNA distances equivalent to distances among other gekkotan sister taxa. Described P. pollicaris subspecies are not reciprocally monophyletic and current subspecific taxonomy does not accurately reflect evolutionary relationships among cryptic lineages. We highlight the conservation significance of these results in light of the ongoing habitat loss in South America's open biomes.
叶足壁虎属（Phyllopezus）分布于南美洲的开阔生物群系：塞拉多（Cerrado）、季节性干燥热带森林（SDTF，包括卡廷加（Caatinga））和查科（Chaco）。我们生成了一个多基因数据集，并估计了已描述的叶足壁虎属分类单元和相关物种之间的系统发育关系。我们包括了已描述的叶足壁虎属波利卡里亚种（Phyllopezus p. pollicaris）和普氏叶足壁虎（P. p. przewalskii）的代表。来自串联数据的系统发育树以及从单个基因树构建的物种树在很大程度上是一致的。所有系统发育重建方法都表明，伯格蒂亚·卢扎（Bogertia lutzae）是马兰乔内斯叶足壁虎（Phyllopezus maranjonensis）的姊妹种，使得叶足壁虎属成为并系群。我们将单型属伯格蒂亚（Bogertia）与叶足壁虎属（Phyllopezus）合并，以保持与系统发育历史同构的分类法。我们在波利卡里叶足壁虎中恢复了多个深度分歧的隐生谱系。这些隐生谱系的 mtDNA 距离与其他有鳞目姊妹类群之间的距离相当。描述的波利卡里叶足壁虎亚种不是相互单系的，当前的亚种分类法不能准确反映隐生谱系之间的进化关系。我们根据南美洲开阔生物群系正在发生的栖息地丧失，强调了这些结果在保护方面的重要意义。
