Coding-Sequence Evolution Does Not Explain Divergence in Petal Anthocyanin Pigmentation Between Mimulus luteus Var luteus and M. l. variegatus.

ABSTRACT: Biologists have long been interested in understanding genetic constraints on the evolution of development. For example, noncoding changes in a gene might be favored over coding changes if they are less constrained by pleiotropic effects. Here, we evaluate the importance of coding-sequence changes to the recent evolution of a novel anthocyanin pigmentation trait in the monkeyflower genus Mimulus. The magenta-flowered Mimulus luteus var. variegatus recently gained petal lobe anthocyanin pigmentation via a single-locus Mendelian difference from its sister taxon, the yellow-flowered M. l. luteus. Previous work showed that the differentially expressed transcription factor gene MYB5a/NEGAN is the single causal gene. However, it was not clear whether MYB5a coding-sequence evolution (in addition t

SUBMITTER: Orr WE 

PROVIDER: S-EPMC11599639 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature