Genetic consequences of rarity in Aster furcatus (Asteraceae), a threatened,
self-incompatible plant.
These results suggest that there are differences between genotypes in the
self-incompatible reaction.
fail to penetrate stylar tissue in
self-incompatible (female) x
As a consequence, their seed set and compatible index were 0, indicating that the 15 cultivars were completely
self-incompatible. Although the other 9 cultivars produced selfing seeds, seed sets and compatible indexes of five cultivars ("QX-081," "QX-006," "QX-003," "Q10-33-2," and "Nannongxiangbin") were very low, much less than 0.5%, showing that the five cultivars were nearly
self-incompatible.
DISCUSSION--Species of Asteraceae have been considered to be predominantly
self-incompatible; thus, they require vectors for their pollination (Proctor and Yeo, 1972; Burtt, 1977; Richards, 1986; de Nettancourt, 2001).
In addition, using the
self-incompatible pin type of F.
Proponents of effective pollination limitation argue that early fruit abortion in
self-incompatible species is due largely to insufficient numbers of compatible pollinia reaching stigmatic chambers.
Our study indicates Galax is
self-incompatible and insect pollinated.
Sutyemez, "Pollen quality, quantity and fruit set of some self-compatible and
self-incompatible cherry cultivars with artificial pollination," African Journal of Biotechnology, vol.
As in Mirabilis, both
self-incompatible and self-compatible species are known in Abronia.
PL-2, PI 617091) bermudagrasses [Cynodon dactylon (L.) Pers.] are
self-incompatible but cross-fertile bermudagrass parental lines maintained as clones by Pennington Seed/Seeds West, Yuma, AZ.
2:30 EFFECTIVE POPULATION SIZE IN THE CLONAL,
SELF-INCOMPATIBLE PLANT, HYMENOXYS HERBACEA.