Original Research
Breeding systems in some representatives of the genus Lycium (Solanaceae)
Submitted: 09 October 1994 | Published: 10 October 1994
About the author(s)
L. Minne, Department of Botany and Genetics, University of the Orange Free State, South AfricaJ. J. Spies, Department of Botany and Genetics, University of the Orange Free State, South Africa
H. J. T. Venter, Department of Botany and Genetics, University of the Orange Free State, South Africa
A. M. Venter, Department of Botany and Genetics, University of the Orange Free State
Full Text:
PDF (975KB)Abstract
The development of the ovule and the embryo sac of five of the 17 species of Lycium and of one hybrid, recorded for southern Africa, was investigated. All specimens of four of the species and the hybrid (between a hermaphroditic and a functionally dioecious species) were found to be functionally dioecious: they express only one sex, although both male and female organs are present in the same tlower. One species was hermaphroditic. The embryo sacs of all species, and of the hybrid, were of the normal eight-nucleate Polygonum type. The structure of the ovary and the development of the embryo sac are similar to those of L europaeum L. The absence of unreduced embryo sacs indicates that apomixis does not occur at any ploidy level in the species studied.
Keywords
Metrics
Total abstract views: 2158Total article views: 2413
Crossref Citations
1. Genetic diversity and morphological variation in African boxthorn (Lycium ferocissimum) – Characterising the target weed for biological control
G.A. McCulloch, E.V. Mauda, L.D. Chari, G.D. Martin, K. Gurdasani, L. Morin, G.H. Walter, S. Raghu
Biological Control vol: 143 first page: 104206 year: 2020
doi: 10.1016/j.biocontrol.2020.104206