Breeding systems in African Lycium (Solanaceae)
نویسندگان
چکیده
منابع مشابه
Systematic Review of Chemical Constituents in the Genus Lycium (Solanaceae).
The Lycium genus is widely used as a traditional Chinese medicine and functional food. Many of the chemical constituents of the genus Lycium were reported previously. In this review, in addition to the polysaccharides, we have enumerated 355 chemical constituents and nutrients, including 22 glycerogalactolipids, 29 phenylpropanoids, 10 coumarins, 13 lignans, 32 flavonoids, 37 amides, 72 alkaloi...
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In North American Lycium (Solanaceae), the evolution of gender dimorphism has been proposed as a means of restoring outcrossing after polyploidization causes the loss of self-incompatibility. Previous studies of this process in Lycium focused on comparisons between species that differ in ploidy. We examined intraspecific variation in floral morphology and DNA content in populations of L. califo...
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The Witheringia solanacea complex consists of three species, W. asterotricha, W. meiantha, and W. solanacea, native to Central and South America. The three taxa are morphologically similar, and their distinctions and relationships have been the subject of taxonomic controversy. To investigate breeding systems and potential for hybridization among the taxa of the complex, two Costa Rican accessi...
متن کاملFloral morphometrics and the evolution of sexual dimorphism in Lycium (Solanaceae).
Plants of Lycium californicum, L. exsertum, and L. fremontii produce flowers that are either male-sterile (female) or hermaphroditic, and populations are morphologically gynodioecious. As is commonly found in gynodioecious species, flowers on female plants are smaller than those on hermaphrodites for a number of floral traits. Floral size dimorphism has often been hypothesized to be the result ...
متن کاملA tale of two continents: Baker's rule and the maintenance of self-incompatibility in Lycium (Solanaceae).
Over 50 years ago, Baker (1955, 1967) suggested that self-compatible species were more likely than self-incompatible species to establish new populations on oceanic islands. His logic was straightforward and rested on the assumption that colonization was infrequent; thus, mate limitation favored the establishment of self-fertilizing individuals. In support of Baker's rule, many authors have doc...
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ژورنال
عنوان ژورنال: South African Journal of Botany
سال: 2008
ISSN: 0254-6299
DOI: 10.1016/j.sajb.2008.01.049