Apomixis is an asexual seed reproduction mechanism thorough which embryos are
originated from material tissues inside the ovules, without precedent fertilisation. It allows …

Breeding systems have been associated with polyploidization and genomic change, which
have a central role in the diversification of Angiosperms. Polyploidy commonly leads to …

Apomixis is a difficult-to-analyse trait with a complex molecular basis and a substantive
effect on the biology of a species. Thus, apomixis is an interesting characteristic for …

The tropical Bignoniaceae is mostly late-acting self-incompatible (LSI) and depends on a
guild of medium to large sized bees for their pollination. Adenocalymma nodosum and A …

Some tropical Bignoniaceae form sporophytic apomictic polyploid complexes are similar to
better studied temperate plants. Handroanthus ochraceus is a widely distributed Neotropical …

Polyploidization is common among angiosperms and might induce typically allogamous
plants to become autogamous (self-compatible, relying on sexual self-fertilization) or …

Apomixis and polyploidy have been important in the evolution of the angiosperms, and
sporophytic apomixis has been associated with polyembryony and polyploidy in tropical …

Neopolyploidy has been associated with gametophytic apomixis and breakdown of
gametophytic self-incompatibility. Nevertheless, Bignoniaceae presents agamic polyploid …

Premise of research. Recent phylogenetic studies placed nearly all Neotropical arboreal
and shrubby species of the Bignoniaceae (excluding Jacaranda) in the Tabebuia alliance, a …

In diploid late-acting self-incompatible (LSI) species of Bignoniaceae, self-pollinated pistils
show a marked delay in ovule penetration by pollen tubes, followed by delayed, but …