Genome Size Evolution and Dynamics in Iris, with Special Focus on the Section Oncocyclus.

ABSTRACT: Insights into genome size dynamics and its evolutionary impact remain limited by the lack of data for many plant groups. One of these is the genus Iris, of which only 53 out of c. 260 species have available genome sizes. In this study, we estimated the C-values for 41 species and subspecies of Iris mainly from the Eastern Mediterranean region. We constructed a phylogenetic framework to shed light on the distribution of genome sizes across subgenera and sections of Iris. Finally, we tested evolutionary models to explore the mode and tempo of genome size evolution during the radiation of section Oncocyclus. Iris as a whole displayed a great variety of C-values; however, they were unequally distributed across the subgenera and sections, suggesting that linea

SUBMITTER: Samad NA 

PROVIDER: S-EPMC7760388 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature