易位

These translocation lines were generated from homeologous chromosome pairing, or mis-division and reconstruction of univalent chromosomes.

染色有的来源于同祖配对交换，有的来源于单价错分裂或断裂的重建。

This paper reviewed the chromosomal engineering in the aspects of double diploid, hetero-additive line, hetero-replacement line, exchange line, monosome one incomplete chromosome systems.

对植物染色工程双二倍、异附加系、异代换系、系、单缺系统进行了综述。