Rapid movement of a Heliconius hybrid zone:: Evidence for phase III of Wright's shifting balance theory?
Rapid movement of a Heliconius hybrid zone:: Evidence for phase III of Wright's shifting balance theory?
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DOI：
10.1111/j.0014-3820.2002.tb00125.x
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发表时间：
2002-10-01
期刊：
影响因子：
3.3
通讯作者：
Blum, MJ
中科院分区：
文献类型：
--
作者：
Blum, MJ
有人提出，一个移动的杂交区可以是适应性特征在赖特的平衡转变进化模型的第三阶段传播的机制。在这里，我提出了一个例子，一个移动的混合区在警告彩色Heliconius蝴蝶，一个系统，这被认为是一个可能的情况下，转移平衡进化。在17年内移动了大约47公里，混合区的转移导致了H。erato hydara颜色图案迅速取代相邻的H。erato petiverana模式。这种移动可能是由于显性驱动增强了H的轻微选择优势。erato hydara超过H. erato petiverana，这在很大程度上符合有利于第三阶段成功的理论条件。
It has been proposed that a moving hybrid zone can be a mechanism for the spread of adaptive traits in phase III of Wright's shifting balance model of evolution. Here I present an example of a moving hybrid zone in warningly colored Heliconius butterflies, a system which is considered to be a possible case of shifting balance evolution. Having moved approximately 47 km in 17 years, the hybrid zone shift has led to the H. erato hydara color pattern rapidly displacing the adjacent H. erato petiverana pattern. The movement is potentially due to dominance drive augmenting a slight selective advantage of H. erato hydara over H. erato petiverana, which is largely consistent with theoretical conditions favoring the success of phase III.