On the diploid level a distinction will be made between autogamous
and allogamous crops, the latter in several examples known as crop-weed complexes.
However, tomato plants are also autogamous
, which means that pollination of each flower is by its own pollen and that cross-pollination between flowers, while it may occur, is not needed for fruit production.
Additionally, all positively identified species were grouped according to pollination mode as trochilophilous, chiropterophilous, entomophilous, mixed/unspecific (two or three of the first three categories), or autogamous
(Kessler & Kromer, 2000).
Wahlenbergia colonizers seem to have been entomophilous as well, but current pollination is largely autogamous
(Anderson et al.
1999) in southwest European Fabaceae, where the incidence of reduced diadelphous androecia is correlated with an autogamous
Medicago truncatula is diploid, autogamous
with a small genome with good abilities for transformation and regeneration through somatic embryogenesis.