Sexual signaling and speciation, a microevolutionary perspective
Sexual signaling and speciation, a microevolutionary perspective
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DOI：
10.1023/a:1021224207727
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发表时间：
2002-11-01
期刊：
影响因子：
1.5
通讯作者：
Boake, CRB
中科院分区：
文献类型：
--
作者：
Boake, CRB
尽管越来越多的证据表明性选择可以驱动物种形成，但自然种群中性信号的进化远未得到很好的理解。性信号的演变是对各种因素的反应。一些最重要的选择性因素是同种，在特定环境中的传播效率，捕食者的检测和系统发育的限制。在脊椎动物和无脊椎动物的单一类型信号的研究中，这些因素已经得到了相当成功的解决。然而，多模态信号如何演变尚不清楚，因为上面列出的因素将作用于信令系统的每个组件，并且必须考虑每种类型信号的相对权重。果蝇的物种非常适合这样的分析，因为它们既适合表型实验又适合遗传操作。本文提出了一种方法，涉及两个分析：研究的信号是性选择在一个物种内，和平行的研究的信号，密切相关的物种之间的行为隔离。如果在这两个过程中涉及相同的信号特征，它们将为性选择可以驱动物种形成的假设提供支持。这种方法是说明与夏威夷果蝇的研究和审查的信号，可以在果蝇的性选择。
Despite the growing evidence that sexual selection can drive speciation, the evolution of sexual signals in natural populations is far from being well-understood. Sexual signals evolve in response to a variety of factors. Some of the most important selective factors are conspecifics, transmission efficiency in a particular environment, detection by predators, and phylogenetic constraints. These factors have been addressed quite successfully in studies of single types of signals in both vertebrates and invertebrates. However, it is less clear how multimodal signals evolve because the factors listed above will act on every component of the signaling system, and the relative weights of each type of signal must be taken into account. Species of Drosophila are excellent for such analyses because they are amenable to both phenotypic experimentation and genetic manipulation. This paper presents an approach that involves two analyses: studies of which signals are sexually selected within a species, and parallel studies of the signals that are involved in behavioral isolation between closely related species. If the same signal characteristics are involved in both processes, they would provide support for the hypothesis that sexual selection can drive speciation. This approach is illustrated with studies of Hawaiian Drosophila and a review of signals that could be sexually selected in Drosophila melanogaster.