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Subject:

Re: sex determination in fish

From:

Patrick Brunner <[log in to unmask]>

Reply-To:

Scientific forum on fish and fisheries <[log in to unmask]>

Date:

Thu, 3 Oct 2002 03:00:06 -0400

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text/plain

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Colleagues,

Almost nothing is known about the genetic basis of sex determination in fish (and chondrichthyes?). It has already been noted that fishes display many different types of sex determination systems, from hermaphroditism to gonochorism, and from environmental sex determination to genetic sex determination including male and female heterogamety, polyfactorial systems and autosomal influences. Seems to me as if our imagination is limiting the number of reproduction systems. For those interested but not familiar with this topic, here a link to a very nice site;

http://www.wikipedia.org/wiki/Sex-determination_system

With regard to genetically based sex determination in fish, there was a publication in a recent issue of NATURE;

http://www.nature.com/cgi-taf/DynaPage.taf?file=/nature/journal/v417/n6888/abs/nature751_fs.html

and also
http://www.biomedcentral.com/news/20020521/01/

best

Patrick


--
----Patrick C. Brunner Ph.D.-----

Swiss Federal Research Station
Schloss, Lab. 4
CH-8820 Waedenswil
Switzerland

phone: +41-1-783 6331
fax: +41-1-783 6434
e-mail: [log in to unmask]





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