Beyond Bateman's Experiment: A Test of Classical Ideas in Sexual Selection Using Modern Molecular Methods

超越贝特曼的实验：使用现代分子方法检验性选择的经典思想

• 批准号: 0545597
• 负责人: Patricia Gowaty
• 金额: $ 22.39万
• 依托单位: University of Georgia Research Foundation Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-05-01 至 2009-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0545597&HistoricalAwards=false
• 关键词: Beyond; Bateman; Experiment; Test; Classical

The experiments will replicate and extend a key citation in the study of sexual selection, Bateman (1948). This classic study of sex differences in mating success variance (MSV) in Drosophila melanogaster used inbred individuals with unique heritable mutant phenotypes to infer mating success. Mutant phenotypes might have affected Bateman's results. Thus, in this research the investigators will assign parentage using molecular DNA analyses of wild-type individuals in three species, Drosophia melanogaster, D. pseudoobscura, and D. hydei, which differ in sperm size, sperm number per ejaculate, gamete size ratios, and female remating latencies. The objectives are to verify that sex differences in MSVs in D. melanogaster are similar to those Bateman found and to test the overlapping predictions of more modern theories of the causes of sex differences in MSVs through comparisons of three species that differ in factors widely-thought to affect MSVs. The intellectual merit lies in the importance of sex differences in MSV to sexual selection. Bateman's result that MSV is greater among males than females is a central tenet of sexual selection, yet doubts about his results remain because of the potential effects of deleterious mutant phenotypes. The broader impacts include: (1) The PIs' will include undergraduate students in their research. (2) The PIs will recruit interns from nearby historically black colleges such as Spellman, Morehouse, and Clark-Atlanta. (3) The PI's will improve the quality of K-12 education through sponsoring an outreach series on biodiversity and animal behavior. (4) The PI's will recruit K-12 teachers to participate in their research through the NSF-Research Experiences for Teachers program. (5) The PIs will broadly disseminate the results of their research by writing articles for the public.

实验将在性选择研究中复制并扩展关键引用，贝特曼（Bateman）（1948）。 这项对果蝇果蝇成功方差（MSV）的性别差异的经典研究使用了具有独特的可遗传突变表型的近交个个体来推断交配成功。 突变表型可能影响了贝特曼的结果。 因此，在这项研究中，研究人员将使用三种野生型个体的分子DNA分析分配亲子，果蝇Melanogaster，D。Pseudoobscura和D. hydei，精子大小，每个射精，配子尺寸比率和女性恢复延迟的精子数量不同，精子数量有所不同。目的是验证D. melanogaster中MSV的性别差异与发现的Bateman相似，并通过比较三种物种的比较，这些物种在广泛想象的因素上比较了MSV中的性别差异原因的重叠预测，从而影响了MSV。 知识分子的优点在于性别差异在MSV中的重要性。贝特曼（Bateman）在男性中比女性更大的MSV的结果是性选择的核心宗旨，但由于有害突变表型的潜在影响，对他的结果的怀疑仍然存在。更广泛的影响包括：（1）PIS的研究将包括本科生。 （2）PIS将从附近历史悠久的黑人学院（例如Spellman，Morehouse和Clark-Atlanta）招募实习生。 （3）PI将通过赞助有关生物多样性和动物行为的外展系列来提高K-12教育的质量。 （4）PI的将招募K-12教师通过NSF-Research for Teachers计划参加他们的研究。 （5）PI将通过为公众撰写文章来广泛传播其研究结果。