Adaptive divergence in shoot gravitropism creates hybrid sterility in an Australian wildflower

• Published in: bioRxiv
• Main Authors: Wilkinson, Melanie J, Roda, Federico, Walter, Greg M, James, Maddie E, Nipper, Rick, Walsh, Jessica, Allen, Scott L, North, Henry L, Beveridge, Christine A, Ortiz-Barrientos, Daniel
• Format: Paper
• Language: English
• Published: Cold Spring Harbor Cold Spring Harbor Laboratory Press 21.03.2021
• Subjects: Adaptation; Evolution; Genotyping; Gravitropism; Natural selection; New species; Phenotypes; Reproductive isolation; Signal transduction; Speciation

Abstract Natural selection is a significant driver of speciation. Yet it remains largely unknown whether local adaptation can drive speciation through the evolution of hybrid sterility between populations. Here, we show that adaptive divergence in shoot gravitropism, the ability of a plant’s shoot t...