词汇 | pleiotropy |
释义 | BETA Examples of pleiotropypleiotropy isn’t in the Cambridge Dictionary yet. You can help! Their approach gives a hypothesis test for pleiotropy versus close linkage. If pleiotropy is common, we predict that the pattern of divergence among populations will consistently reflect the within-population genetic architecture. It is not clear, however, whether such antagonistic pleiotropy is common. This context dependency includes both interactions with other loci and environments, as well as interactions with other genetic/ environmental systems through pleiotropy. Current evidence, therefore, indicates that antagonistic pleiotropy is a relatively uncommon form of genotype-environment interaction. Pleiotropy and the evolution of genetic systems conferring resistance to pesticides. To evaluate the environmental heterogeneity hypothesis, information is needed on whether antagonistic pleiotropy is a common source of crossing of reaction norms for fitness. If the first possibility is true, the linkage is more important than the pleiotropy in affecting the trait correlation. A second common explanation for genetic variation is balancing selection, such as antagonistic pleiotropy, overdominance, or frequency-dependent selection. The argument is also said to be based on a kind of pleiotropy. The extreme alternative classes of explanations for correlated suites of traits are optimal adaptation and genetic constraint resulting from pleiotropy. Effects of pleiotropy on predictions concerning mutation-selection balance for quantitative traits. The comparison between these various affected traits will allow us to better understand the physiological and biochemical causes of the pleiotropy of adaptive genes. This suggests that a developmental pleiotropy that is not based on the circadian clock, but which involves the per locus, is mediating these pre-adult phenotypes. The error is then compounded by a lengthy attempt to explain the different phenotypes of p mutants in terms of pleiotropy. The dilemma facing geneticists and breeders is whether such results indicate linkage or pleiotropy. Pleiotropy can also determine the facility of evolving a coordinated response to integrated environmental cues. |
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