Sexual antagonism and the consequences of sex-specific selection

性对抗和性别选择的后果

• 批准号: DP140104107
• 负责人: A/Prof Darrell Kemp
• 金额: $ 18.59万
• 依托单位: Macquarie University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2014
• 资助国家: 澳大利亚
• 起止时间: 2014-09-30 至 2017-09-29
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP140104107
• 关键词: Sexual; antagonism; consequences; sex; specific

Males and females arise from essentially the same genome yet are selected in vastly different ways. This exposes gene pools to alternate episodes of feminising- and masculinising-selection, thereby promoting Sexually Antagonistic (SA) evolution. Sex chromosomes are predicted to play an important role in SA evolution because sex-linkage allows for gender-specific gene expression, but data on the role of sex-linked genes are limited to Drosophila, a male heterogametic (XY) model. This project will determine the consequences of SA selection in the butterfly Eurema hecabe (a female ZW heterogamete) using experimental evolution and the feminising endosymbiont Wolbachia to force male genomes through bouts of feminising selection.

男性和女性基本上来自相同的基因组，但以截然不同的方式进行选择。这使基因库暴露于雌性化和雄性化选择的交替事件，从而促进了性拮抗（SA）进化。性染色体被预测在SA进化中发挥重要作用，因为性连锁允许性别特异性基因表达，但有关性连锁基因作用的数据仅限于果蝇，一种雄性异配子（XY）模型。该项目将确定SA选择在蝴蝶Eurema hecabe（一种雌性ZW异配子）中的后果，使用实验进化和雌性化内共生体Wolbachia来迫使雄性基因组通过雌性化选择。