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arrhenotoky
arrhenotoky The phenomenon occurring in the reproduction of certain animals in which fertilized eggs give rise to females and unfertilized eggs to males. It is found among certain insect groups, notably the wasps and bees (Hymenoptera), and in mites, as well as rotifers and nematodes. The males are haploid and transmit only the maternal genome – their production represents arrhenotokous parthenogenesis – whereas the females are diploid. In pseudo-arrhenotoky both males and females arise from fertilized eggs and are diploid, but males subsequently become effectively haploid by inactivation of the paternal genome, either in all cells or only in germ-line cells. This occurs in certain scale insects and mites. Compare thelytoky.
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"arrhenotoky." A Dictionary of Biology. 2004. Encyclopedia.com. 29 May. 2012 <http://www.encyclopedia.com>. "arrhenotoky." A Dictionary of Biology. 2004. Encyclopedia.com. (May 29, 2012). http://www.encyclopedia.com/doc/1O6-arrhenotoky.html "arrhenotoky." A Dictionary of Biology. 2004. Retrieved May 29, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-arrhenotoky.html |
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arrhenotoky
arrhenotoky Production of males from unfertilized eggs, a phenomenon that is characteristic of all Hymenoptera (ants, bees, wasps, etc.).
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Cite this article
MICHAEL ALLABY. "arrhenotoky." A Dictionary of Ecology. 2004. Encyclopedia.com. 29 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "arrhenotoky." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 29, 2012). http://www.encyclopedia.com/doc/1O14-arrhenotoky.html MICHAEL ALLABY. "arrhenotoky." A Dictionary of Ecology. 2004. Retrieved May 29, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-arrhenotoky.html |
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arrhenotoky
arrhenotoky Production of males from unfertilized eggs, a phenomenon characteristic of all Hymenoptera.
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Cite this article
MICHAEL ALLABY. "arrhenotoky." A Dictionary of Zoology. 1999. Encyclopedia.com. 29 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "arrhenotoky." A Dictionary of Zoology. 1999. Encyclopedia.com. (May 29, 2012). http://www.encyclopedia.com/doc/1O8-arrhenotoky.html MICHAEL ALLABY. "arrhenotoky." A Dictionary of Zoology. 1999. Retrieved May 29, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-arrhenotoky.html |
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