The Genetics of Speciation： Considering Early-Acting Isolation, Hybrid Evolution, and Epigenetic Mechanisms  

作　　者：Amber M. RICE, Editor 

机构地区：[1]Lehigh University, Department of Biological Sciences, Bethlehem, PA 18015, USA, [e-mail]

出　　处：《Current Zoology》2013年第5期654-657,共4页动物学报（英文版）

摘　　要：Since Darwin＇s time, evolutionary biologists have sought to understand how species arise. The study of speciation remains a focus of evolutionary biology, and since the early 204 century, characterizing the genetics underlying this process has also become a central goal. Much research into the genetics of speciation has cen- tered on identifying the genes underlying reproductive isolating mechanisms, or ＇speciation genes＇ （see Nosil and Schluter, 2011 for a discussion of this term）. With information about such genes available from many sys- tems, general questions about how speciation proceeds may be addressed： How many genes contribute to speciation？ Is reproductive isolation more commonly the result of divergence in protein-coding regions or regulatory regions？ Is reproductive isolation more fre- quently the result of natural selection or genetic drift？ （Coyne and Orr, 2004; Nosil and Schluter, 2011）. Given recent advances in technology, such questions have be- come accessible in systems that were previously intrac- table for studying the genetics of speciation. Moreover, with this increase in the accessibility of genetic analyses for non-model systems, a broader set of questions about the genetics of speciation can now be addressed.

关 键 词：遗传学特性 生物学形态 进化 遗传机制 基因漂移 物种形成 混合 表观 

分 类 号：Q111[生物学—普通生物学] S852.65[农业科学—基础兽医学]