For example, is the trait of negative emotionality a cause or a consequence (or just a marker) of sensitivity to parenting?
例如，负面情绪特质对于敏感养育而言，是原因还是结果(或只是一个标记)？
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AFLP has been emerged as a major new type of genetic marker with broad application in systematic, pathology, population genetics, DNA fingerprinting and quantitative trait loci (QTL) mapping.
The former uses marker score as selection criterion estimated based on the markers showing significant associations with the target quantitative trait screened by stepwise multiple regression.