Original Research

Breeding systems in some representatives of the genus Lycium (Solanaceae)

L. Minne, J. J. Spies, H. J. T. Venter, A. M. Venter
Bothalia | Vol 24, No 1 | a759 | DOI: https://doi.org/10.4102/abc.v24i1.759 | © 1994 L. Minne, J. J. Spies, H. J. T. Venter, A. M. Venter | This work is licensed under CC Attribution 4.0
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 Africa
J. 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

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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.


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Crossref Citations

1. Dioecy in South American Deprea (Solanaceae)1
Neil W. Sawyer, Gregory J. Anderson
BIOTROPICA  vol: 32  issue: 2  first page: 291  year: 2000  
doi: 10.1646/0006-3606(2000)032[0291:DISADS]2.0.CO;2