| 書目名稱 | Evolution in the Dark | | 副標題 | Darwin‘s Loss Withou | | 編輯 | Horst Wilkens,Ulrike Strecker | | 視頻video | http://file.papertrans.cn/318/317706/317706.mp4 | | 概述 | Sheds new light on general evolutionary processes.Provides insights into the evolution of cave animals.Richly illustrated throughout.Includes supplementary material: | | 圖書封面 |  | | 描述 | .This book provides fascinating insights into the development and genetics of evolutionary processes on the basis of animals living in the dark, such as the .Astyanax. cave fish. . Biologically functionless traits show high variability, which results from neutral deleterious mutations no longer being eliminated by natural selection, which normally acts to preserve functional capability. These negative mutations accumulate until the traits they are responsible for become rudimentary or even lost.. The random genetic basis of regressive evolution is in accordance with Nei’s .Neutral Theory of Molecular Evolution., which applies to the molecular level. Such processes are particularly conspicuous in species living in constant darkness, where, for example in .Astyanax., all traits depending on the exposure to light, like eyes, pigmentation, visually triggered aggressive behaviour, negative phototaxis, and several peripheral outcomes of circadian rhythmicity, are useless and diminish. In compensation constructive traits like taste, olfaction or the lateral line senses are improved by selection and do not show variability. Regressive and constructive traits inherit independently, proving | | 出版日期 | Book 2017 | | 關鍵詞 | Rudimentation; Cave species; Astyanax; Regressive evolution; Regressive traits; Phylogeny; Cave animals; Ca | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-662-54512-6 | | isbn_softcover | 978-3-662-57201-6 | | isbn_ebook | 978-3-662-54512-6 | | copyright | Springer-Verlag GmbH Germany 2017 |
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