Their analysis found -- contrary to a very well known study , caspi et al . -- That there was no association between genotype for this gene and depression risk and no significant interaction between genotype and number of stressful life events .
If you can show that a subset of your population with a particular environmental history , there is an even greater association between the disease and their genotype , you can argue that the interaction between the two potentiated the effect of the gene .
Such epigenetic mechanisms permit a common genotype to producemultiple possible phenotypes .
像这样的后生性机制允许普通基因型产生多种可能的显型。
As they report this week in plos one , the shallow-water genotype has become less common over time .
据本周他们在plosone的报告,随着时间的推移,浅海基因型越来越少。
The authors asked : how do a particular genotype of the serotonin gene and stressful life events interact to influence depression risk ?
作者问道:一个血清素基因的特定基因型和压力性生活事件如何相互作用以影响抑郁风险?
A common problem in studies attempting to relate genetics with a particular behavior is that a particular genotype might only confer a very small risk .