CAJ | 학술논문

基于DNA中性分子标记的亲缘地理学研究却多获得非随机的空间遗传格局，与气候、环境因子或者表型性状具有很好的一致性，这种非随机格局是如何形成和维持的。本文以东亚植物物种为例，分析了其空间遗传格局的非随机性及其一般特点，讨论了其可能的成因。冰期避难所隔离、物种分布区变化等中性过程是目前大多研究采用的解释，然而仍有部分线索暗示可能存在自然选择导致的适应性进化。我们认为这种基于“中性”分子标记的亲缘地理研究对未来适应性进化研究具有重要的启发作用，提出可能的一般研究框架，并展望了二代测序技术在未来适应性进化研究中的作用。
기우DNA중성분자표기적친연지이학연구각다획득비수궤적공간유전격국，여기후、배경인자혹자표형성상구유흔호적일치성，저충비수궤격국시여하형성화유지적。본문이동아식물물충위례，분석료기공간유전격국적비수궤성급기일반특점，토론료기가능적성인。빙기피난소격리、물충분포구변화등중성과정시목전대다연구채용적해석，연이잉유부분선색암시가능존재자연선택도치적괄응성진화。아문인위저충기우“중성”분자표기적친연지리연구대미래괄응성진화연구구유중요적계발작용，제출가능적일반연구광가，병전망료이대측서기술재미래괄응성진화연구중적작용。
Phylogeography studies based on DNA neutral markers mostly obtain nonrandom spatial genetics patterns,which coincide well with spatial distribution of climate,environment factors or species traits. How do these nonrandom patterns originate and maintain? The present paper chose the East Asia plant species as examples to obtain general nonrandom patterns of these species,and to discuss the likely forces driving these patterns.Although neutral processes such as glacial refugia isolation or species range dynamics are adopted as the main explanation in most studies,there are still studies revealing clues of natural selection which may then lead to adaptation.It is believed that the current phylogeography studies with neutral markers should have key implications for future adapation researches.A general frame for future adapation researches is proposed,the utility of next-generation sequencing technologies is discussed.