Hybridization experiments in Geranium

Abstract

Hybridization experiments were carried out with species of Geranium sect. Anemonifolia, sect. Lueida, sect. Pyrenaica and sect. Ruberta. All 9 species tested proved to be self-compatible. Of the 13 interspecific combinations tested only two were successful ( G. brutium X G. molle and G. purpureum × G. robertianum) but both hybrids were completely sterile. It is concluded that at least the European species are reproductively isolated and that hybridization experiments are of little value for an infrageneric classification of Geranium.

Molecular diversity and genetic relationships amongGeranium pusillumandG. pyrenaicumwith inter simple sequence repeat (ISSR) regions

“…Inter-specific hybridization is known to occur in the genus Geranium; for example, hybrids have been described as G. × oenense (G. molle × G. pusillum); G. × luganense (G. molle × G. pyrenaicum); and G. × hybridum (G. pusillum× G. pyrenaicum) (Van Loon 1984c).…”