12月7日：Exploring hidden conflicts in pollination
发布者：未知
发布时间：2018-12-03
浏览量：300
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.
