节节麦与黑麦间杂种F1胚再生植株及其双二倍体细胞遗传学分析
JOURNAL OF HENAN UNIVERSITY(NATURAL SCIENCE)(2005)
Abstract
将节节麦与黑麦杂交,利用F1胚愈伤组织培养再生杂种植株,对胚再生杂种F1进行秋水仙素加倍获得了节节麦和黑麦的双二倍体(DDRR). 杂种F1(DR)的减数分裂中期Ⅰ(PMCMI)染色体构型平均为2n=10.16Ⅰ+1.86Ⅱ+0.12Ⅲ+0.00625Ⅳ.该双二倍体(DDRR)的减数分裂中期Ⅰ(PMCMI)染色体构型平均为2n=8.676Ⅰ+9.318Ⅱ+0.019Ⅲ+0.004Ⅳ,C1的结实率平均为2.118%.该双二倍体可作为一个新的物种以及作为改良小麦的种质材料.
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Key words
hybrid embryo regeneted f1,cytogenetics,triticum tauschii,secale cereale
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