Divergent selection on the biomechanical properties of stamens under wind and insect pollination.

ABSTRACT: Wind pollination has evolved from insect pollination in numerous angiosperm lineages and is associated with a characteristic syndrome of morphological traits. The traits initiating transitions to wind pollination and the ecological drivers involved are poorly understood. Here, we examine this problem in Thalictrum pubescens, an ambophilous (insect and wind pollination) species that probably represents a transitional state in the evolution of wind pollination. We investigated wind-induced pollen release by forced harmonic motion by measuring stamen natural frequency ( f_n), a key vibration parameter, and its variability among nine populations. We assessed the repeatability of f_n over consecutive growing seasons, the effect of this parameter on pollen release in a wind t

SUBMITTER: Timerman D 

PROVIDER: S-EPMC6304045 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature