I suspect that apomixis is common in horticultural aroids as it?s the case|
for many other families. Fig trees are a good example: about 700 varieties
of Ficus carica, the edible fig, created by men. Half of them are
parthenocarpic, they produce mature figs with (or not) seeds, but without
the fig wasp pollinators (no pollen needed); the other half is more
?traditional? and needs to be pollinated by the fig wasps (carrying pollen)
in order to get mature figs. Consequently parthenocarpic fig species can be
cultivated in areas outside the natural range of the fig wasp.
I don?t know if it?s better to self-pollinated or to reproduce by apomixis,
in the first case genetic recombination can occur and can create some
variability, but inbreeding can cause low seed set. Some apomictic Rubus
species which are self-fertile have developed in a second step
Apomixis occurs in many taxa thus it must advantageous in some situations.
In many cases, its origin may be from sexually sterile hybrid polyploids
(with high genetic diversity).
Assured reproduction (seeds formation) in absence of pollination (sexual
partners) or/and pollinators.
Clonal reproduction equivalent of vegetative reproduction
?Cost of meiosis? and the mother genetic contribution 100% (instead of 50%)
to her offspring
Fix and disseminate an extremely fit genotype.
Accumulate disadvantageous mutations
Inability to recombine novel mutants
A very narrow niche/habitat
No adaptation to stable habitats (often weeds in transitory habitats).
You thoughts were right except may be about which system is more advantageous.
I don?t know if it helps!!!!