Phylogenetic stemminess is one of the most popular metrics of tree shape among evolutionary biologists. The index was originally described by Fiala & Sokal (1985) as the proportion of the total length of the branches of a phylogenetic clade (including the subtending branch, or "stem") that is accounted for by the length of the subtending branch of the clade.

中文翻译：

---

什么是“尖细”和“茎状”系统发育？解决系统发育术语纠缠

系统发育的干性是进化生物学家中最流行的树形度量标准之一。该索引最初由Fiala＆Sokal（1985）描述为系统进化分支（包括对向分支或“茎”）的分支总长度的比例，该比例由该对向分支的长度来解释。进化枝。