Analysis of inheritance of growth trajectories in laboratory populations of guppy-fish.

Abstract excerpt

We analysed the variation of growth trajectories for body length from 40 to 90 days of age in three laboratory populations of Poecilia reticulata. The populations used were two lines of guppy-fish obtained by artificial selection for increased and decreased body length at 70 days and one line maintained under free-breeding condition. The factor analysis performed on the phenotypic correlation matrices among...

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