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Deviation from morphological intermediacy in interstrain hybrids of rainbow trout, Salmo gairdneri (1987)

Ferguson, Moira M. ; Danzmann, Roy G.

Springer

Environmental biology of fishes 18 (1987), S. 249-256

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ISSN: 1573-5133

Keywords: Developmental rate ; Genetics ; Inheritance ; Meristic ; Salmonidae

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Synopsis Deviations from morphological intermediacy in six first generation hybrids between three hatchery strains of rainbow trout, raised in a common environment, are reported. Hybrids have higher mean counts of four meristic characters than their maternal parental strain in a significantly greater number of cases (18 out of 24). Furthermore, eight of eleven hybrid indices are not intermediate. These results are discussed in reference to several mechanisms and models proposed to account for observed responses of meristic characters to environmental and genetic influences.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00004878

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