摘要
用普通小麦－纤毛鹅观草双倍体与普通小麦中国春连续回交两次，然后连续自交，通过形态观察、根尖细胞染色体计数、花粉母细胞减数分裂中期Ｉ染色体配对分析及染色体Ｃ－分带，在ＢＣ２Ｆ２和ＢＣ２Ｆ３群体中，分别筛选到一个端二体异附加系９４Ｋ２２７和一个二体异附加系９４Ｋ２８０，其中Ｃ－分带显示９４Ｋ２２７添加的是纤毛鹅观草染色体Ｂ的一对长臂，９４Ｋ２８０添加的是纤毛鹅观草的一对染色体Ｄ。
riticum aestivum-Roegneria ciliaris amphiploid was backcrossed with Taestivum cvChinese Spring twice,then the plants with Rciliaris chromosomes were selected and self-pollinated continuousllyBy phenotype observation,combined with root tip chromosome counting,PMC MI pairing analysis and chromosome C-banding,a ditelosomic addition line 94K227 and a disomic addition line 94K280 was identified among BC2F2 and BC2F3 population respectivelyC-banding results showed that 94K227 contains 1 pair of long arms in chromosome B,and 94K280 contains 1 pair of chromosome D from Rciliaris
