Monoicy, dioicy, and genetic structure in three species of Sheathia (Batrachospermales, Rhodophyta).

ABSTRACT: Sexual systems (i.e., separate vs. combined sexes) vary widely among eukaryotes and influence the evolution of reproductive systems, which shape genetic structure and evolutionary trajectories. In diploid-dominant angiosperms, combined (i.e., hermaphroditism) and separate sexes are expected to correlate with selfing and outcrossing, respectively. When sex is determined in the haploid phase, selfing is possible even when there are separate sexes. The freshwater red macroalgal genus Sheathia (Batrachospermales) displays sexual system variation within and among populations, but no prior data exist on the reproductive systems of these populations. We developed 16 polymorphic microsatellite loci to characterize the reproductive system and genetic structure of three Sheathia species. We observed

SUBMITTER: Shainker-Connelly SJ 

PROVIDER: S-EPMC12351370 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature