Traditional approaches for genetic mapping of these so called dynamic traits have been to associate markers with phenotypes for different ages or stages of development and to compare the differences across these stages , or to use multiple trait mapping where the same character is repeatedly measured at different times 針對這些動態(tài)性狀,傳統(tǒng)的遺傳作圖方法是通過在不同的年齡或發(fā)育階段利用遺傳標記與表型性狀進行關(guān)聯(lián)分析,并比較這些性狀在不同發(fā)育階段的差異,或者通過進行不同階段的多位點作圖進行分析。