Theoretical Studies of the Adaptive Evolution of Premating Isolation: Conspecific Gamete Precedence and Cultural Inheritance

交配前隔离适应性进化的理论研究：同种配子优先和文化遗传

• 批准号: 0614166
• 负责人: Maria Servedio
• 金额: $ 31.1万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0614166&HistoricalAwards=false
• 关键词: Theoretical; Studies; Adaptive; Evolution; Premating

Habitat degradation and species introductions are increasing the opportunity for hybridization between species. When hybrids have poor survival, pairs of species can sometimes develop mate choice mechanisms to prevent interbreeding. This research uses mathematical models to examine how two biological factors affect whether mate choice divergence will occur. Some animals that mate multiple times disproportionately use the sperm of members of their own species, a phenomenon called conspecific gamete precedence; mathematical models and computer simulations will assess whether different forms of conspecific gamete precedence can prevent divergence in mate choices. Many animals also have a learned, as well as genetic, component to mate choice. The remainder of the research will analyze how learning can affect the likelihood of mate choice divergence. Portions of this project will be undertaken by undergraduates as part of a mathematical track being developed by the PI at the University of North Carolina. The goals of this track are twofold, to increase the mathematical literacy of biology majors in general, and to increase the participation of women in mathematical biology. Students will distribute their findings on a website developed for use by biology teachers and students. Participating in this research enables the students to further our understanding of the processes that produce and maintain biological diversity.

栖息地退化和物种引入正在增加物种之间杂交的机会。 当杂种生存较差时，物种对有时会发展出选择机制以防止杂交。 该研究使用数学模型来研究两个生物学因素如何影响伴侣选择差异是否会发生。 一些多次交配的动物不成比例地使用自己物种成员的精子，这一现象称为同种配子优先；数学模型和计算机模拟将评估不同形式的同种配子优先级是否可以防止伴侣选择的分歧。 许多动物还具有熟悉的遗传和遗传成分，可以选择选择。 其余的研究将分析学习如何影响选择差异的可能性。 本科生将在北卡罗来纳大学PI开发的数学轨道上进行该项目的一部分。这首歌的目标是双重的，以提高生物学专业的数学素养，并增加女性参与数学生物学。学生将在生物学老师和学生使用的网站上分发他们的发现。 参与这项研究使学生能够进一步了解产生和维持生物多样性的过程。