Male alee with (P) or without (R) rat growth horaone transgene were Bated with feaales of two lines (W and C) to produce foundation stocks of four lines for selection to increase adult body weight. Frequencies of alee with the transgene were aonltored in selected and control lines at generations 0 and 6. The F» progeny of sires with the transgene coapared to the F» progeny of sires without the transgene were 16% heavier (P<0.01) in 42-day weight in both daa lines. Indicating that the transgene was transacted to the progeny. Percentages of Bales with the transgene at generations 0 and 6 were lower than expected. Thus, the frequency of the transgene Introduced to conventional alee was not aaintalned In these lines of alee under randoa Bating with or without selection for Increased adult body weight.

J. Nagai, P. Sabour, U. Ramsey, J. S Gavora

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume XIII. Plenary lectures, molecular genetics and mapping, selection, prediction and estimation., , 337–340, 1990
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