Androdioecy

Wikipedia, the free encyclopedia - Cite This Source

Androdioecy is a reproductive system found in species comprised 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. 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.

Androdioecious species

• Datisca glomerata
• Eulimnadia texana
• Fraxinus lanuginosa
• Rivulus marmoratus
• Clam shrimp

See also

• Gynodioecy
• Plant sexuality

References

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' SCIENE VOL313 8 September 2006 / News Focus

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

Wikipedia, the free encyclopedia © 2001-2006 Wikipedia contributors (Disclaimer)
This article is licensed under the GNU Free Documentation License.
Last updated on Wednesday February 20, 2008 at 21:04:23 PST (GMT -0800)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation