Ray David A, Xing Jinchuan, Salem Abdel-Halim, Batzer Mark A
Department of Biology, West Virginia University, PO Box 6057, Morgantown, West Virginia 26506, USA.
Syst Biol. 2006 Dec;55(6):928-35. doi: 10.1080/10635150600865419.
Mobile elements have been recognized as powerful tools for phylogenetic and population-level analyses. However, issues regarding potential sources of homoplasy and other misleading events have been raised. We have collected available data for all phylogenetic and population level studies of primates utilizing Alu insertion data and examined them for potentially homoplasious and other misleading events. Very low levels of each potential confounding factor in a phylogenetic or population analysis (i.e., lineage sorting, parallel insertions, and precise excision) were found. Although taxa known to be subject to high levels of these types of events may indeed be subject to problems when using SINE analysis, we propose that most taxa will respond as the order Primates has--by the resolution of several long-standing problems observed using sequence-based methods.
移动元件已被公认为是用于系统发育和种群水平分析的强大工具。然而，关于同塑性的潜在来源和其他误导性事件的问题已经被提出。我们收集了利用Alu插入数据进行的所有灵长类动物系统发育和种群水平研究的可用数据，并检查了其中潜在的同塑性和其他误导性事件。发现在系统发育或种群分析中，每个潜在混杂因素（即谱系分选、平行插入和精确切除）的水平都非常低。虽然已知受这些类型事件影响程度较高的分类群在使用SINE分析时可能确实会遇到问题，但我们认为，大多数分类群的反应将与灵长目一样——通过解决使用基于序列的方法观察到的几个长期存在的问题。
