合子前阶段的进化生态学

Evolutionary ecology of the prezygotic stage.

作者信息

Bernasconi G, Ashman T-L, Birkhead T R, Bishop J D D, Grossniklaus U, Kubli E, Marshall D L, Schmid B, Skogsmyr I, Snook R R, Taylor D, Till-Bottraud I, Ward P I, Zeh D W, Hellriegel B

机构信息

Institute of Environmental Sciences, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.

出版信息

Science. 2004 Feb 13;303(5660):971-5. doi: 10.1126/science.1092180.

DOI:10.1126/science.1092180

PMID:14963320

Abstract

The life cycles of sexually reproducing animals and flowering plants begin with male and female gametes and their fusion to form a zygote. Selection at this earliest stage is crucial for offspring quality and raises similar evolutionary issues, yet zoology and botany use dissimilar approaches. There are striking parallels in the role of prezygotic competition for sexual selection on males, cryptic female choice, sexual conflict, and against selfish genetic elements and genetic incompatibility. In both groups, understanding the evolution of sex-specific and reproductive traits will require an appreciation of the effects of prezygotic competition on fitness.

摘要

有性生殖动物和开花植物的生命周期始于雄雌配子及其融合形成合子。在这一最早阶段的选择对于后代质量至关重要，并引发了类似的进化问题，然而动物学和植物学采用的方法却不相同。在雄性性选择的合子前竞争、雌性隐性选择、性冲突以及对抗自私遗传元件和遗传不相容性的作用方面存在显著的相似之处。在这两个类群中，理解性别特异性和生殖性状的进化将需要认识到合子前竞争对适合度的影响。