Types of mutations and their possible significance in evolution
Types of mutations and their possible significance in evolution
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DOI：
10.1086/279810
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发表时间：
1921-01-01
影响因子：
2.9
通讯作者：
Blakeslee, AF
中科院分区：
文献类型：
--
作者：
Blakeslee, AF
世纪初出现了两个概念，这两个概念深刻地影响了生物学思想，并在动植物实验研究的趋势中产生了越来越大的影响。德弗里斯以月见报春花为基础的突变理论和孟德尔以豌豆为基础的定律，确定了现代遗传学的诞生日期。对这两种植物的研究共同构成了我们目前大部分遗传研究的基础。虽然豌豆与遗传的概念有着密切的联系，而这种概念的应用范围比最初想象的要广，但许多人认为，晚报春花和与之相关的突变理论提供了一个例子，说明了一个由不正确的解释建立起来的有价值的理论。越来越多的人相信，在Enotheras文化中出现的大多数新形式根本不是突变，而月见草作为一种不正常的植物群，不应被认真地认为是正常形式进化过程的代表。在我可以支配的短暂时间内，我想概述一下吉姆关于杂草（Datulr-a Stramoniutm）的一些最新发现，希望这些发现可以顺便对赫拉斯中更高度参与的现象有所启发，并可以作为简要讨论其可能的进化意义的基础。曼陀罗没有广泛的明显的孟德尔性状。早期的研究
THE beginning of the twentieth century saw the rise of two concepts which have profoundly affected biological thought and been of increasing influence in the trend of experimental study of plants and animals. The mutation theory of deVries based on the evening primrose, and the laws of Mendel based on the garden pea, settled the date of birth of the modern science lof genetics. The studies on these two plants have together formed a basis for the main bulk of our present genetic investigations. While the garden pea stands intimately associated with a conception of inheritance of wider application than was at first imagined, the evening primrose and the theory of mutation connected with it are by many considered to furnish an example of a valuable theory founded upoii incorrect interpretations. The belief is growing that most of the new forms which have appeared in cultures of the Enotheras are not mutations at all and that the evening primroses, as an abnormal group of plants, are not to be seriously considered as representative of the processes of evolution in normal forms. In the short time at my disposal, I wish to outline some recent findings in the jims' on weed (Datulr-a Stramoniutm) which it is hoped may throw incidentally some light on the more highly involved phenomena in the ¬heras, and which may serve as a basis of a brief discussion of their possible evolutionary significance. The jimson weed is not supplied with a wide range of obvious Mendelian characters. The early studies of