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Written by:

Curtis C


Date added:

December 10, 2012








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1 / 244


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In this paper, I estimate the amount of genetic variation in oviposition preference and larval performance present in two California populations of a cosmopolitan pest of stored legumes, Callosobruchus maculatus (Bruchidae: Coleoptera), and examine whether positive genetic correlations exist between preference and performance...
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High levels of genetic variation in both preference and performance were detected in one population (Bay Area population, h$^2$ = 0.73 for oviposition preference), but not in another population (Davis population). A second estimate of the amount of genetic variation for oviposition preference in the Bay Area population, after three generations of laboratory rearing, supports the hypothesis that the absence of significantly nonzero heritabilities in the Davis population is probably due to the three generations of laboratory rearing prior to the start of the experiment...
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