Dissertation Research: Determinants of Variation in Fitness Related Traits in Callithrix jacchus

论文研究：Callithrix jacchus 健康相关性状变异的决定因素

• 批准号: 9120356
• 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: 1991
• 资助国家: 美国
• 起止时间: 1991-12-01 至 1993-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9120356&HistoricalAwards=false
• 关键词: Dissertation; Research; Determinants; Variation; Fitness

The primary goal of this proposal is to clarify the factors which lead to variation in litter size and infant survivorship in a species of new world monkey, Callithrix jacchus. This species is particularly interesting as it habitually gives birth to twins, but will also produce litters with either one or three offspring. From a theoretical perspective, the determinants of variation will provide insight into the opportunity for the operation of evolution through natural selection, as well as the stages in development at which it occurs. Also, it will be possible to determine the degree to which prenatal growth and number of fetuses effects survivorship in the period after birth. Through statistical analyses, the investigators will be able to estimate the genetic component to both litter size and infant survivorship. The basic data will be gathered through the use of laproscopic examinations to determine the timing of ovulation and ultrasound to determine the number of fetuses and to follow the growth of the litters.

本提案的主要目的是澄清 导致一窝仔数和婴儿存活率变化， 新大陆猴的一种，叫长尾猴。 本种 特别有趣的是，它通常会生下双胞胎， 也会产下一窝一个或三个后代。 从 从理论角度来看，变异的决定因素将 为进化的运作提供机会 通过自然选择，以及发展阶段， 它发生了。 此外，还可以确定 产前生长和胎儿数量对存活率的影响 在出生后的这段时间里。 通过统计分析， 研究人员将能够估计遗传成分， 和婴儿存活率。 基本数据将是 通过使用腹腔镜检查收集，以确定 排卵的时间和超声波，以确定数量 胎仔，并跟踪窝仔的生长。