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Genetic architecture of a pollinator shift and its fate in secondary hybrid zones of two Petunia species.

Marta BinaghiKorinna EsfeldTherese MandelLoreta Brandão de FreitasMarius RoestiCris Kuhlemeier
Published in: BMC biology (2023)
Among the traits analysed, those with a more complex genetic architecture are best maintained in association with the species upon their secondary contact. We propose that this maintained genotype-phenotype association is a coincidental consequence of the complex genetic architectures of these traits: some of their many underlying small-effect loci are likely to be coincidentally linked with the actual barrier loci keeping these species partially isolated upon secondary contact. Hence, the genetic architecture of a trait seems to matter for the outcome of hybridization not only then when the trait itself is under selection.
Keyphrases
  • genome wide
  • dna methylation
  • copy number
  • gene expression