Genomic Patterns of Loss of Distyly and Polyploidization in Primroses.

ABSTRACT: Transitions from outcrossing to selfing and from diploidy to polyploidy often co-occur in plants, likely because the ability to produce selfed seed increases the likelihood of newly formed polyploids to become established. An ideal system to study these transitions is Primula, where the shift from diploid, outcrossing progenitors to polyploid, selfing descendants co-occurred repeatedly and the genetic basis of the mating-system shift is known. In Primula, outcrossing is enforced in distylous, typically diploid species characterized by florally heteromorphic, self-incompatible individuals, whereas selfing is enabled in homostylous, typically polyploid species, characterized by florally homomorphic populations of self-compatible plants. Distyly is controlled by the S-locus supergene. Small l

SUBMITTER: Mora-Carrera E 

PROVIDER: S-EPMC12312358 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature