Li Yi-Wei, Yu Li, Zhang Ya-Ping
Laboratory of Conservation and Utilization of Bio-resource, Yunnan University, Kunming 650091, China.
Yi Chuan. 2007 Jun;29(6):659-67. doi: 10.1360/yc-007-0659.
Phylogenetic reconstruction among various organisms not only helps understand their evolutionary history but also reveal several fundamental evolutionary questions. Understanding of the evolutionary relationships among organisms establishes the foundation for the investigations of other biological disciplines. However, almost all the widely used phylogenetic methods have limitations which fail to eliminate systematic errors effectively, preventing the reconstruction of true organismal relationships. "Long-branch Attraction" (LBA) artifact is one of the most disturbing factors in phylogenetic reconstruction. In this review, the conception and analytic method as well as the avoidance strategy of LBA were summarized. In addition, several typical examples were provided. The approach to avoid and resolve LBA artifact has been discussed.
各种生物体之间的系统发育重建不仅有助于理解它们的进化历史,还能揭示一些基本的进化问题。对生物体之间进化关系的理解为其他生物学学科的研究奠定了基础。然而,几乎所有广泛使用的系统发育方法都存在局限性,无法有效消除系统误差,从而妨碍了真实生物体关系的重建。“长枝吸引”(LBA)假象是系统发育重建中最令人困扰的因素之一。在这篇综述中,总结了LBA的概念、分析方法以及避免策略。此外,还提供了几个典型例子。讨论了避免和解决LBA假象的方法。