| ^60Co—γ射线对玉米当代（Mo）染色体断裂规律的分析 |
| |
| 引用本文： | 陶澜 唐遂平. ^60Co—γ射线对玉米当代（Mo）染色体断裂规律的分析[J]. 西南大学学报(自然科学版), 1992, 14(4): 348-350 |
| |
| 作者姓名： | 陶澜 唐遂平 |
| |
| 作者单位： | 西南农业大学农学系，西南农业大学农学系 |
| |
| 摘 要： | ~(60)Co-γ射线辐射玉米干种子对影响当代(Mo)染色体断裂的研究表明,断裂频率以1号和具随体的6号染色体最高,7、9和10号染色体很低,且基本不受辐射剂量大小的影响。染色体断裂数量与染色体长度无显著相关。断裂常发生在异染色质与常染色质的结合处.
|
| 关 键 词： | γ辐射 玉米 染色体 断裂 |
ANALYSIS OF THE LAWS OF GAMMA-RADIATION-INDUCED Mo CHROMOSOMAL BREAKAGE IN CORN (Zea mays L.) |
| |
| Tao Lan,Tang Xuping. ANALYSIS OF THE LAWS OF GAMMA-RADIATION-INDUCED Mo CHROMOSOMAL BREAKAGE IN CORN (Zea mays L.)[J]. Journal of southwest university (Natural science edition), 1992, 14(4): 348-350 |
| |
| Authors: | Tao Lan Tang Xuping |
| |
| Affiliation: | Tao Lan,Tang Xuping Department of Agronomy,Southwest Agricultural University |
| |
| Abstract: | Dry seeds of corn(Zea mays L.)were irradiated with gammarays(~(60)Co)at different doses.The breakage frequency of chromosome No.1 and chromosome No.6 (SAT-chromosome)was higher than that of chromosomes No.7,No.9 and No.10 in the Mo generation,which appeared virtually independent of radiation doses. Gammaradiation-induced chromosomal breakage always occurred at the linking parts of heterochromatin and euchromatin. |
| |
| Keywords: | gamma radiation maize chromosomes fraetures |
| 本文献已被 CNKI 维普 等数据库收录！ |
