Analysis of variation for apomictic reproduction in diploid Paspalum rufum.

ABSTRACT:

Background and aims

The diploid cytotype of Paspalum rufum (Poaceae) reproduces sexually and is self-sterile; however, recurrent autopolyploidization through 2n + n fertilization and the ability for reproduction via apomixis have been documented in one genotype of the species. The objectives of this work were to analyse the variation in the functionality of apomixis components in diploid genotypes of P. rufum and to identify individuals with contrasting reproductive behaviours.

Methods

Samples of five individuals from each of three natural populations of P. rufum (designated R2, R5 and R6) were used. Seeds were obtained after open pollination, selfing, conspecific interploidy crosses and interspecific interploidy self-pollination induction. The reproductive behaviour of each

SUBMITTER: Delgado L 

PROVIDER: S-EPMC4030816 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature