Sexual selection in mites: copulation, conflict and complexity

螨虫的性选择：交配、冲突和复杂性

• 批准号: 261485-2008
• 负责人: Proctor, Heather
• 金额: $ 1.72万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=479844
• 关键词: Sexual; selection; mites; copulation; conflict

Sexual selection is an important force behind diversification of sexually reproducing organisms. Much research has examined the benefit to females of selecting males with particular attributes (e.g., males with bright colours may have 'good genes' that can be passed on to the female's offspring), but there is also a less mutually beneficial side to sexual selection. Sexual conflict occurs when there are different benefits to males and females of repeated matings, timing of mating, or fertilization of eggs. Species differ in potential for both female choice and sexual conflict based on proximity of male and female at the time of sperm transfer. For species with little or no contact (e.g., marine animals with broadcast spawning of gametes), potential for intrasexual selection is low. For those with close contact (e.g., animals that copulate), it is likely to be high, and can influence evolution of behaviour and morphology of structures involved in sperm transfer.

性选择是有性生殖有机体多样化背后的一股重要力量。许多研究已经研究了选择具有特定属性的雄性对雌性的好处(例如，颜色鲜艳的雄性可能拥有可以遗传给雌性后代的好基因)，但性选择也有互不相容的一面。当重复交配、交配时机或卵子受精对雄性和雌性有不同的好处时，就会发生性冲突。根据精子移植时男性和女性的接近程度，不同物种在女性选择和性冲突的可能性上存在差异。对于很少接触或没有接触的物种(例如，传播配子产卵的海洋动物)，性内选择的可能性很低。对于那些有密切接触的人(例如交配的动物)，它可能会很高，并可能影响涉及精子移植的行为和结构的形态的演变。