Postdoctoral Research Fellowship in Biosciences Related to the Environment for FY 1997

Caitlin Gabor本行动资助了1997年美国国家科学基金会与环境有关的生物科学博士后研究奖学金。该奖学金为研究员提供了获得博士学位以外的额外科学培训的机会，并在美国国家科学基金会生物科学理事会支持的任何生物学领域中，在分子、细胞、有机体、种群、群落和/或生态系统层面上，对生物与其环境之间相互作用的基本机制进行创新和富有想象力的研究。每个奖学金支持在赞助实验室进行的研究和培训计划。这项研究和培训计划的题目是“活鱼交配选择的生殖特征位移”。生殖性状位移（RCD）在物种形成过程中起着重要作用。迄今为止的研究表明，这一假设是有价值的，但都受到这样或那样的限制。本研究以双性帆鳍鱼（Poecilia latipinna）和单性帆鳍鱼（P. formosa）为研究对象，在异源性和同域性种群的样带上，比较了同种雌性和同母性雌性对雄性配偶选择的RCD。等位酶变异被用来估计基因流及其与男性歧视性状传播的关系。

Abstract DBI 9750278 Caitlin Gabor This action funds an NSF Postdoctoral Research Fellowship in Biosciences Related to the Environment for 1997. This fellowship provides an opportunity for the Fellow to gain additional scientific training beyond the doctoral degree and to pursue innovative and imaginative into the fundamental mechanisms underlying the interactions between organisms and their environment at the molecular, cellular, organismal, population, community and/or ecosystem level in any area of biology supported by the Directorate for Biological Sciences of the National Science Foundation. Each fellowship supports a research and training plan to be carried out in a sponsoring laboratory. The research and training plan for this fellowship is entitled "Reproductive character displacement on mate selectivity in live bearing fish." Reproductive character displacement (RCD) has been proposed to play an integral role in the speciation process. Studies to date suggest that the hypothesis has value but all have been limited in one way or another. This research uses the bisexual sailfin mollie, Poecilia latipinna, and the unisexual mollie, P. formosa, a hybrid with strict maternal inheritance, to evaluate RCD on male mate selectivity for conspecific females versus gynogenetic females along a transect of allopatric and sympatric populations. Allozyme variation is being used to estimate gene flow and its relationship to the spread of the male discrimination trait.