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From Wikipedia, the free encyclopedia
Androdioecy is a reproductive system found in species composed of a male population and a distinct hermaphrodite population. Such species are rare.
The conditions required for androdioecy to arise and sustain itself are theoretically so improbable that it was long considered that such systems would never be found.[1] However, androdioecy (and near-androdioecy) has now been documented in both phylogenetically distinct plant and animal species. Hence androdioecy has actually evolved independently several times.
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[edit] Androdioecious species
- Caenorhabditis briggsae
- Caenorhabditis elegans
- Datisca glomerata
- Eulimnadia texana
- Fraxinus lanuginosa
- Nephelium lappaceum
- Panax trifolius
- Rivulus marmoratus[2]
- Triops cancriformis
- Triops newberryi
[edit] See also
[edit] References
- ^ D. Charlesworth, 1984.
- ^ Mackiewicz et al.; Tatarenkov, A; Taylor, DS; Turner, BJ; Avise, JC (2006). "Extensive outcrossing and androdioecy in a vertebrate species that otherwise reproduces as a self-fertilizing hermaphrodite". Proc Natl Acad Sci USA 103 (26): 9924–9928. doi:10.1073/pnas.0603847103. PMC 1502555. PMID 16785430. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1502555.
[edit] External links
- Kiyoshi Ishida and Tsutom Hiura. 'Pollen Fertility and Flowering Phenology in an Androdioecious Tree, Fraxinus lanuginosa (Oleaceae), in Hokkaido, Japan'. International Journal of Plant Sciences 159 (1998): 941–947.
- Elizabeth Pennisi. 'Sex and the Single Killifish'. Science 313 (2006)
[edit] Literature
- Bawa, 1980
- Charlesworth, B. 'The evolution of sex chromosomes'. Science 251 (1991): 1030-1033.
- Charlesworth, B. 'The nature and origin of mating types'. Curr. Biol. 4 (1994): 739-741.
- D. Charlesworth, 1985
- Darwin, 1877
- Lewis, 1942
- Lloyd, 1975
- Ross & Weir, 1976
- Wolf and Takebayashi, 2004
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