pseudogamy and autonomous apomixis do not ordinarily occur together
Amphimixis and
pseudogamy in freshwater triclads: experimental reconstitution of polyploid pseudogamic biotypes.
The grass reproduces primarily by apomixis, with the mechanism being apospory followed by
pseudogamy (Fisher et al., 1954; Snyder et al., 1955).
Iatipinna for gynogenesis (
pseudogamy); that is, the sperm is needed for physiological triggering an apparent parthenogenesis (for review, see Turner 1982).
The predominant form of apomictic reproduction in Tripsacum is characterized as being diplosporous
pseudogamy of the Antennaria type [Anennaria alpina (L.) Garrtner] (Burson et al, 1990, Leblanc et al., 1995); however, an infrequent Taraxacum Wigg.
While backcrossing attempts with these highly sterile [B.sub.III] hybrids have resulted in several B[C.sub.1] plants (Liu et al., 1994; Wang and Carman, 1995, unpublished data), none has provided clear evidence of
pseudogamy. Apparently, the genes responsible for apomixis in E.