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用广亲和恢复系中４１３与“Ｌｅｍｏｎｔ×特青”重组自交系群体（ＲＩＬ）杂交，构建中４１３测交Ｆ１群体（ＺＴＰ）和分子标记连锁图谱。研究了中４１３基因组组成、Ｆ１杂种产量性状优势表现以及杂种优势表现与亲本间遗传差异的关系。双亲性状优良往往能获得好的Ｆ１代，但并非所有组合都是如此。低值亲本与中４１３杂交亦可产生高值后代，表现较强的杂种优势。双亲遗传差异与杂种优势表现呈正相关，当母本（ＲＩＬｓ）的模型成分（Ｌｅｍｏｎｔ基因组含量）达到８０％左右时，杂种的籽粒产量最大，优势最强。杂种的生物学产量亦表现随母本的粳型成分增加而继续增加的趋势。
A cross between 413 and F1 populations (ZTP) and molecular marker linkage map was constructed by crossing the recombinant inbred line 413 with “Lemont × Teqing” recombinant inbred line population (RIL). The genome composition of middle 413, the performance of F1 hybrids and the relationship between their heterosis and their genetic differences were studied. Good parents tend to get good F1 generation, but not all combinations are the case. Low-yielding parents and middle-413 hybrids also produced high-value offspring with strong heterosis. The parents’ genetic differences were positively correlated with heterosis. When the model components (Lemont genome content) of males (RILs) reached about 80%, the hybrids had the highest grain yield and the strongest predominance. The biological yield of hybrids also showed a tendency of increasing with the increase of japonica components of female parent.