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五个转基因品系和受体冀棉321配制成双列杂交,通过对产量性状和纤维品质的两年试验分析,结果发现:与受体品种相比,转基因品系的农艺性状有显著变化,说明转基因过程也会使部分农艺性状得到改善。转基因品系间的一般配合力有显著差异,其中有两个品系表现显著的正向一般配合力。杂交种F1的表现也呈现显著差异;两个不同转基因品系间的杂种优势,低于转基因品系与受体品种间的杂种优势。这些变异可能是Bt插入引起的,不同插入位点的相互作用可能会降低杂种优势。
Five transgenic lines and their receptors, Ji mian 321, were made into a double crosses. Through the two-year experiment on yield traits and fiber quality, the agronomic characters of the transgenic lines showed significant changes compared with the recipient varieties, indicating that the transgene The process will also improve some agronomic traits. There were significant differences in general combining ability between transgenic lines, of which two lines showed significant positive general combining ability. The performance of hybrid F1 also showed significant differences; the heterosis between the two different transgenic lines was lower than the heterosis between the transgenic lines and the recipient varieties. These mutations may be caused by Bt insertion, and interactions at different insertion sites may reduce heterosis.