Incompatibility Relationships in Intra- and Interspecific Crosses of Zinnia elegans Jacq. and Z. angustifolia HBK (Compositae)
Zinnia (Compositae-tribe Heliantheae) is comprised of approximately 17 species native to the New World (Torres 1963). Two annual species, Z. angustifolia HBK (formerly Z. linearis Benth.) and Z. elegans Jacq., have long been in cultivation as ornamentals. The two species are distinct, both morphologically and cytologically, with n=11 or 12 for Z. angustifolia and n=12 for Z. elegans (Torres 1963; Terry-Lewandowski et al. 1984).
KeywordsPollen Tube Interspecific Mating Stigmatic Papilla Prezygotic Barrier Self Incompatibility
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- Frankel R, Galun E (1977) Pollination mechanisms, reproduction and plant breeding. Springer-Verlag. Berlin Heidelberg New YorkGoogle Scholar
- Heslop-Harrison J. Heslop-Harrison Y. Knox RB (1973) The callose rejection reaction: A new bioassay for incompatibility in Cruciferae and Compositae. Incompat Newsletter 3:75–76Google Scholar
- Martin FW (1959) Staining and observing pollen tubes in the style by means of fluorescence. Stain Tech 34:125–128Google Scholar
- Nettancourt D de (1977) Incompatibility in angiosperms. Springer-Verlag, Berlin Heidelberg New YorkGoogle Scholar
- Sampson DR (1962) Intergeneric pollen-stigna incompatibility in the Cruciferae. Can J Genet Cytol 4:38–49Google Scholar
- Terry-Lewandowski VM, Bauchan GR, Stimart DP (1984) Cytology and breeding behavior of interspecific hybrids and induced amphiploids of Zinnia elegans and Zinnia angustifolia. Can J Genet Cytol 26:40–45Google Scholar
- Vithanage HIMV, Knox RB (1977) Development and cytochemistry of stigna surface and response to self and foreign pollination in Helianthus annuus. Phytomorphology 27:168–179Google Scholar