| adaptive introgression of abiotic tolerance traits in the sunflower helianthus annuus. | *adaptive trait introgression is increasingly recognized as common. however, it is unclear whether adaptive genetic exchanges typically affect only a single trait, or instead affect multiple aspects of the phenotype. here, we examine introgression of abiotic tolerance traits between two hybridizing north american sunflower species, helianthus annuus and helianthus debilis. *in two common gardens in the hybrid range, we measured 10 ecophysiological, phenological, and architectural traits for pare ... | 2010 | 20345635 |
| genome scan of hybridizing sunflowers from texas (helianthus annuus and h. debilis) reveals asymmetric patterns of introgression and small islands of genomic differentiation. | although the sexual transfer of genetic material between species (i.e. introgression) has been documented in many groups of plants and animals, genome-wide patterns of introgression are poorly understood. is most of the genome permeable to interspecific gene flow, or is introgression typically restricted to a handful of genomic regions? here, we assess the genomic extent and direction of introgression between three sunflowers from the south-central usa: the common sunflower, helianthus annuus ss ... | 2010 | 20355258 |