【摘要】 从 偏凸山羊 草硬 粒小麦双 二倍体后 代中选择 低染色体 数单株，然 后用系谱 法继续选择 ，获得了一个遗传上较稳定的 ２ｎ＝ ４６ 的抗病株系⒚回交分析和核型分析都证明，该株系的遗传组成 中保留了完整的硬粒小麦的 Ａ 和 Ｂ 染色体组，而偏凸山羊草的 Ｄ 和 Ｍ 组染色体仅得到部分保留⒚更多还原

【Abstract】 A genetically relatively stable plant line with 2 n =46 was produced by pedigree selection to the lower chromosome number progeny from the amphidiploid of Aegilops ventricosa and Triticum durum Genomic analysis and preliminary karyotype indicated that genome A and B from T durum were totally remained in these target plants, while chromosomes from genome D and M of Ae ventricosa were partly lost更多还原