从基因组基因平均水平和分子水平上揭示杂种优势形成的遗传基础，为棉花杂交种育种提供理论依据。
Furthermore, the genetic basis of heterosis was revealed on average level of gene and molecular level. All these results provided theoretic basis for cotton hybrid breeding.
因此，在利用分子标记技术预测油菜的杂种优势时，SRAP标记效果更好。
Thus, for the prediction of yield heterosis, SRAP markers are better than SSR markers.
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