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The distributions of the life history of theoretical research, it is mainly the study of breeding optimal allocation of resources between the two functions of the male and female, has been in recent years, ecologists, evolutionary biologists concern. The central principle of sex allocation theory: hermaphrodite plants under conditions of limited resources, the inherent trade-offs between the male and female reproductive function. Gender flowering plants, the negative genetic correlation between male and female features rarely detected. Lu Rui Aconitum is a common species in the eastern Tibetan Plateau alpine meadow, through artificial selection experiments to study the exposed core of Aconitum spent assign the selected pressure, reproductive investment and potential costs related changes. The results show that: 1) After a generation of artificial selection experiments, the distributions of artificial selection did not produce significant differentiation of the offspring, which also led flower characteristics of artificial selection is not showing response. As can be seen from the experimental results, at least, stamen, pistil change in the number or assigned choice obvious correspondence relationship. 2) artificial selection, progeny exposed core aconitic more flower flower characterized exhibit positive phenotype. Phenotypic correlation coefficient of variance analysis, we found that offspring exposed core Aconitum two options series flower flower characteristics between phenotypic correlation coefficient increases (compared with the parent but the difference was not significant), indicating that artificial selection the exposed core Aconitum phenotype among the flower characteristics have become much closer. Between the genetic characteristics of each flower after artificial selection, although there are changes, but are still within the male function (stamens, the stamens, flower width, the Ministry of helmet the perianth weight) or female (pistil pistil) showed positive genetic correlation. Generation of artificial selection, genetic correlation coefficient between the characteristics of each flower mean, the partial male Allocation Series is slightly higher parental partial estrogen allocation series was slightly lower than the parent, but the difference was not significant, indicating that the exposed core Aconitum spend characteristics of a no significant genetic correlation between changes. 3) The results of our study does not support the theory of distribution \Although sex allocation theory predicts negative genetic correlation between male input and male and female investment, but this correlation is difficult to be detected. This may be due to this correlation is often resource variation acquiring the ability to conceal or maternal effects. In addition, resource-based trade-off is not necessarily all pairs of candidate traits manifested.
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