Effect of population size on the mating system in a self-compatible, autogamous
plant, Aquilegia canadensis (Ranunculaceae).
I estimated the amount of autogamous
pollination by comparing the stigmatic pollen loads of intact and emasculated flowers.
seeds were not evaluated as so few were produced.
In Aegilops species, anther length varies from 2.8 to 3.7 mm in the autogamous
species to 5.1 to 7.3 mm in the allogamous species (Boguslavski, 1979).
Pepper plants are preferably autogamous
, diploid with 2n = 2x = 24 or 2n = 2x = 26 chromosomes and have pungency as a marking characteristic, which is attributed to the alkaloid substances, more specifically the capsaicinoids (MOSCONE et al., 2007).
Plants are small, spreading, with small corollas and an autogamous
A group of plants (n = 20 plants at each site) were crossed with pollen from the same flower (autogamous
hand pollinations) to determine if plants were self-compatible.
Gaertn) (Mellish et al., 2002)], while autogamous
species have relatively lower percentages of within-accession variation (43% for Hordeum spontaneum K.
Most thrips-mediated pollen movement was probably autogamous
. However, some emasculated [TABULAR DATA FOR TABLE 3 OMITTED] flowers excluded from large pollinators also set seed, thus indicating outcrossing by thrips (Table 1).
This may be explained by the hypothesis that selfing arose in conjunction with past hybridization of separate taxa and chromosome doubling in the hybrid progeny; that is, if this scenario is correct, only the autogamous
breakdown products of the hybrid distylous parents would have been capable of producing offspring.
The species of genus Capsicum are autogamous
and they have perfect flowers, having male and female structures in the same flower, which facilitates reproduction by self- pollination.
In these Ipomoea, autogamous
pollen grains may be deposited on the stigma before or shortly after anthesis begins.