New genomic resources and comparative analyses reveal differences in floral gene expression in selfing and outcrossing <i>Collinsia</i> sister species

Abstract

AbstractThe evolutionary transition from outcross- to self-fertilization is one of the most common in angiosperms and is often associated with a parallel shift in floral morphological and developmental traits, such as reduced flower size and pollen to ovule ratios, known as the “selfing syndrome.” How these convergent phenotypes arise, the extent to which they are shaped by selection, and the nature of their underlying genetic basis are unsettled questions in evolutionary biology. The genus CollinsiaCollinsiade novoCollinsia rattaniiC. rattaniiCollinsia linearisC. linearisC. rattaniiC. rattaniiC. linearisCollinsiaCollinsia