It has been suggested that clonality provides reproductive assurance in cross-fertilizing species subject to pollen limitation, relieving one of the main selective pressures favoring the evolution of self-fertilization. According to this hypothesis, cross-fertilizing species subject to pollen limitation should often be clonal. Here, we investigated the association between clonality and a geneti...

The evolution of distyly from tristyly was investigated in populations of Oxalis alpina at high elevations throughout the Sky Islands of the Sonoran Desert. Incompatibility systems in tristylous populations, where self-incompatible short-, mid-, and long-styled morphs occur in populations, vary from those typical of tristylous species in which each morph is equally capable of fertilizing ovules...

Citrus reproductive biology is complex. One of its characteristic features parthenocarpy that enables seedless fruit production. and self-incompatibility knowledge only partial sometimes discrepant. Increasing such relevant for better managing cultivated varieties improving the selection parents in breeding strategies to recover as mandarins. This work develops an efficient protocol characteriz...