| 玉米粗线期染色体G带及螺旋的研究 |
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| 引用本文： | 何凤发 田丰炉. 玉米粗线期染色体G带及螺旋的研究[J]. 西南大学学报(自然科学版), 1995, 17(5): 404-406 |
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| 作者姓名： | 何凤发 田丰炉 |
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| 作者单位： | 西南农业大学农学系 |
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| 摘 要： | 用风油精活体诱导玉米花粉母细胞粗线期染色体Ｇ带和螺旋的结果表明。Ｇ带带纹众多，分布于整要体上，带纹数目与染色体收缩程度相关。相同时期不同细胞的Ｇ带数量和位置稳定并可重复。同源染色体联会后的二阶体在纵向上的螺纹数与二价体的收缩程度有关，螺旋的方向具有多样性。
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| 关 键 词： | 玉米 染色体带型 染色体带 螺旋 |
STUDIES ON G-BANDS AND MACROCOILS IN MAIZE PACHYTENE CHROMOSOMES |
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| He Fengfa,Tian Fenglu. STUDIES ON G-BANDS AND MACROCOILS IN MAIZE PACHYTENE CHROMOSOMES[J]. Journal of southwest university (Natural science edition), 1995, 17(5): 404-406 |
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| Authors: | He Fengfa Tian Fenglu |
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| Abstract: | The EB(Essential Balm)method was adopted to study,the G-bands and macrocoilson the maize pachytene chromosome. The G-bands obtained were numerous and alongthe whole coromosome,The number of the G-bands was much interrelated with the con-densation of chromosomes and at the similar stage,was stable and reproducable. Themacrocoils of the bivalent chromosomes were o6served. The gyro-number changed withchromosome condensation and the direction of coils has shown different natterns. |
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| Keywords: | maize Pachytene chromosomes G-bands Macrocoil maize:chromo-some banding patterns chromosome bands Helixes(molecalar biology) |
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