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Journal Article

Unisexual Fish: Laboratory Synthesis of a "Species"

R. Jack Schultz
Science
New Series, Vol. 179, No. 4069 (Jan. 12, 1973), pp. 180-181
Stable URL: http://www.jstor.org/stable/1735642
Page Count: 2

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Topics: Teeth, Female animals, Species, Hybridity, Chromosomes, Genomes, Fish, Noise spectra, Earth, Reproduction
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Abstract

By hybridizing bisexual (gonochoristic) fishes, all-female clones have been produced that are comparable to those of a wild unisexual "species," Poeciliopsis monacha-lucida, living in northwestern Mexico. The laboratory unisexuals have consistently given birth only to female progeny for six generations.

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