Variation of Residual Sexuality Rates along Reproductive Development in Apomictic Tetraploids of Paspalum.

ABSTRACT: Most apomictic plants are facultative, maintaining the ability to reproduce sexually at different frequencies depending on the taxa, ploidy, and reproductive stage. In this context, Paspalum species are good model systems for studies evaluating the varying levels of apomixis expression. We aimed to identify, in apomictic tetraploid Paspalum species, the degree of apomixis and residual sexuality in three stages of reproductive development, and if their expression varies along them in order to predict their realized impact on the genetic diversity of future generations. Three main stages in the reproductive development (i.e., ovule, seed, and progeny) were studied in tetraploids from populations of P. cromyorhizon and P. maculosum. Mature ovules were studied using

SUBMITTER: Reutemann AV 

PROVIDER: S-EPMC9269205 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature