摘要
采用改良C带法对啤酒大麦7个品系染色体的GiemsaC带核型进行了比较分析,结果表明,不同大麦品系间相同序号染色体的GiemsaC带分布相似,带的数目和强弱存在明显差异,不同染色体表现不同程度的C带带型多样性,第1,3,4染色体的带型具有较大的多样性,而各品系间第6染色体的带型相同.7个品系间C带核型存在差异,与浙农大三号相比,91鉴H84的C带核型变异最大,其次是87812,其余品系(种)差异极小.
A comparative analysis of Giemsa C-band patterns of chromosomes in seven lines of malting barley is carried out by the modified Giemsa C-band technique. The results indicates that Giemsa C-band of the chromosome with the same number in different barley lines has the same distribution, that there is a sharp distinction in the number and intensity of bands,that different chromosomes show a diversity of C-band patterns with different extent,that band patterns of chromosomes 1,3 and 4 present abundant variances,that chromosome 6 shows the same C-band pattern and there exist some variances in C-band patterns among the 7 lines,and that compared with that of “Zhenongda No.3”,the C-band pattern of “91 Jiang H84” has changed greatly,then that of 87 8 12,and the C-band patterns of the remaining lines have slight difference.
出处
《四川师范学院学报(自然科学版)》
1997年第4期305-310,共6页
Journal of Sichuan Teachers College(Natural Science)