Dissertation Research: Determinants of Male Reproductive Success in a Baboon Hybrid Zone: A Behavioral and Genetic Analysis

论文研究：狒狒杂交区雄性生殖成功的决定因素：行为和遗传分析

• 批准号: 9711216
• 负责人: Jane Phillips-Conroy
• 金额: $ 0.83万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-12-15 至 1999-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9711216&HistoricalAwards=false
• 关键词: Dissertation; Research; Determinants; Male; Reproductive

This project is the first to look at factors determining male reproductive success in the Awash National Park (ANP) baboon hybrid zone. The project integrates genetic and behavioral studies of a single group that has mixed ancestry from two types of baboons, anubis and hamadryas. Hamadryas males herd females into one male units which they continuously maintain, whereas anubis males compete for and guard only estrous females. Hybrid males exhibit intermediate behavior. The short term reproductive success of different male reproductive strategies will be compared by examining the relationship of reproductive behavior and number of offspring sired. Molecular genetic markers found in the nuclear genome will be used to assess genetic hybridity and for parental analysis. Mitochondrial DNA sequence data will be collected for comparison with the nuclear markers. Differential success of male reproductive strategies affects the dynamics of the hybrid zone, particularly since male migration appears to mediate gene flow. In addition to male reproductive strategies and success, the project will also evaluate the effects of female ancestry and social structure on the success of one male units. The knowledge gained by this study will elucidate the evolutionary forces acting in the ANP hybrid zone and, consequently, contribute to an understanding of the importance of social factors in the origin and maintenance of hybrid zones.

这个项目是第一个在阿瓦什国家公园（ANP）狒狒杂交区研究决定雄性繁殖成功的因素。 该项目整合了对一个单一群体的遗传和行为研究，该群体具有来自两种狒狒的混合祖先，阿努比斯和哈马德里亚。 Hamadryas男性羊群女性到一个男性单位，他们不断维护，而anubis男性竞争和保护只有发情的女性。 杂种雄性表现出中间行为。 本研究将借由探讨繁殖行为与所产生后代数量的关系，来比较不同雄性繁殖策略的短期繁殖成功率。 核基因组中发现的分子遗传标记将用于评估遗传杂交和亲本分析。 将收集线粒体DNA序列数据，用于与核标志物进行比较。 差异成功的男性生殖策略的影响动态的混合区，特别是因为男性移民似乎介导的基因流。 除了男性生殖策略和成功，该项目还将评估女性祖先和社会结构对男性单位成功的影响。 这项研究所获得的知识将阐明在ANP混合区的进化力量，因此，有助于理解的重要性，社会因素的起源和维护的混合区。