نتایج جستجو برای: outbreeding
تعداد نتایج: 430 فیلتر نتایج به سال:
While several studies have investigated general properties of the genetic architecture of natural variation in gene expression, few of these have considered natural, outbreeding populations. In parallel, systems biology has established that a general feature of biological networks is that they are scale-free, rendering them buffered against random mutations. To date, few studies have attempted ...
ECENT studies on the population dynamics of several largely selfing species have shown that the restrictions often postulated to be imposed on the mode and extent of recombination and genetic variability by their breeding habit could be alleviated in several ways. Natural selection can regulate various factors controlling the rate of recombination (GRANT 1958) , or maintain through heterozygote...
Understory herbs are an essential part of tropical rain forests, but little is known about factors limiting their reproduction. Many of these herbs are clonal, patchily distributed, and produce large floral displays of nectar-rich 1-d flowers to attract hummingbird pollinators that may transport pollen over long distances. The aim of this study was to investigate the effects of clonality, cross...
Because host-parasite interactions are often specific to the host and parasite genotype, it may be important whether a host reproduces by selfing or outcrossing. The latter is associated with higher genetic diversity among the offspring and may reduce parasite success. Here, we test whether outbred offspring of Daphnia magna have an advantage over selfed offspring in the presence of a parasite ...
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