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Titolo:
Variation in development rate among clonal lines of rainbow trout (Oncorhynchus mykiss)
Autore:
Robison, BD; Wheeler, PA; Thorgaard, GH;
Indirizzi:
Washington State Univ, Dept Zool, Pullman, WA 99164 USA Washington State Univ Pullman WA USA 99164 pt Zool, Pullman, WA 99164 USA Washington State Univ, Dept Genet & Cell Biol, Pullman, WA 99164 USA Washington State Univ Pullman WA USA 99164 ll Biol, Pullman, WA 99164 USA
Titolo Testata:
AQUACULTURE
fascicolo: 1-4, volume: 173, anno: 1999,
pagine: 131 - 141
SICI:
0044-8486(19990330)173:1-4<131:VIDRAC>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLECOGLOSSUS-ALTIVELIS; QUANTITATIVE TRAITS; GENETIC-VARIATION; CHUM SALMON; AYU;
Keywords:
development rate; clonal lines; rainbow trout (Oncorhynchus mykiss);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Robison, BD Washington State Univ, Dept Zool, POB 644236, Pullman, WA 99164 USA Washington State Univ POB 644236 Pullman WA USA 99164 9164 USA
Citazione:
B.D. Robison et al., "Variation in development rate among clonal lines of rainbow trout (Oncorhynchus mykiss)", AQUACULTURE, 173(1-4), 1999, pp. 131-141

Abstract

The genetic basis of development rate was examined using clonal lines of rainbow trout produced by androgenesis. We examined development rate, as indicated by physiological time to hatch (degrees days), of four clonal lines of rainbow trout crossed to outbred females in three separate experiments. In the first experiment, the Swanson line, derived from an Alaskan population, displayed a significantly earlier physiological time to hatch than the Arlee line, derived from a domesticated rainbow trout (P < 0.001). In the second experiment, this trend was maintained across three temperatures (approximately 8, 10, and 14 degrees C) and two females, although the experimentlacked the statistical power to detect a difference(P = 0.052). In the third experiment, the Swanson line had a significantly earlier physiological time to hatch than three other clonal lines (P < 0.01) when tested across three temperatures (8, 10, and 16 degrees C) and two females. There was no evidence of genotype by environment interaction in any of the experiments. These data indicate that development rate has a strong genetic component, andthat the clonal lines of rainbow trout available should be highly suitablefor QTL analysis of development rate in rainbow trout. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 15:05:53