【12-7】彭佛恩:Exploring hidden conflicts in pollination

发布时间:2018-12-05

讲座题目:Exploring hidden conflicts in pollination
 主 讲 人:彭佛恩(博士后)
 主 持 人:陈小勇(教授)
 开始时间:2018年12月7日上午10:00
 讲座地址:闵行校区 资环楼435室
 主办单位:生态与环境科学学院

报告人简介:
  彭佛恩博士,本科毕业于华东师范大学,2018年于华盛顿大学获得博士学位,现为University of Connecticut博士后。主要研究适应与物种形成的遗传基础。

 报告内容简介:
  The obligate mutualism and exquisite specificity of many  plant-pollinator interactions leads to the expectation that flower  phenotypes (e.g., corolla tube length) and corresponding pollinator  traits (e.g., hawkmoth proboscis length) are congruent as a result of  coevolution by natural selection. However, the effect of variation in  flower morphology on the fitness of plants and their pollinators has not  been quantified systematically. I employed the theoretical morphospace  paradigm using a combination of 3D printing, electronic sensing, and  machine vision technologies to determine the influence of flower  morphological features on the fitness of both parties: the artificial  flower and its hawkmoth pollinator. Contrary to the expectation that the  same flower morphology maximizes the fitness of both plant and  pollinator, I found that the two parties have divergent optima for  corolla curvature, with non-overlapping fitness peaks in flower  morphospace. The divergent fitness optima between plants and pollinators  could lead to evolutionary diversification in both groups.