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| 一种新型小麦雄性不育系研究初报 | |
| 引用本文： | 李友勇,李晓琳,赵祥生,王永霞,张自阳.一种新型小麦雄性不育系研究初报[J].河南农业科学,2009(1). |
| 作者姓名： | 李友勇 李晓琳 赵祥生 王永霞 张自阳 |
| 作者单位： | 1. 河南科技学院,河南,新乡,453003 2. 济源市农业科学研究所,河南,济源,454650 3. 河南科技学院,河南,新乡,453003;西南科技大学,四川,绵阳,621010 4. 河南科技学院,河南,新乡,453003;河南农业大学,河南,郑州,450002 |
| 摘 要： | 报道了一种新发现的小麦雄性不育系(MSTE型雄性不育,分蘖穗不育male sterility in till-ers ears)。该不育系主茎穗可部分结实,结实率10%～40%,但分蘖穗不育不实。该不育系与普通小麦品种杂交,绝大多数后代育性得到恢复,恢复度达80%以上。不育系的主茎穗结实籽粒保持其不育特性。晚秋到早春分期播种不改变不育系育性特点。细胞学观察发现,该不育系减数分裂中有较高频率的花粉母细胞出现单价体、落后、染色体桥、微核等结构和数目变异现象,说明该不育系的不育性与染色体的变异有关,与光温反应关系不密切。 |
| 关 键 词： | 小麦 雄性不育 染色体结构和数目变异 |
A New Type of Wheat Male Sterile Line(MSTE) |
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| LI You-yong,LI Xiao-lin,ZHAO Xiang-sheng,WANG Yong-xia,ZHANG Zi-yang.A New Type of Wheat Male Sterile Line(MSTE)[J].Journal of Henan Agricultural Sciences,2009(1). | |
| Authors: | LI You-yong LI Xiao-lin ZHAO Xiang-sheng WANG Yong-xia ZHANG Zi-yang |
| Institution: | 1.Henan Institute of Science and Technology;Xinxiang 453003;China;2.Jiyuan Institute of Agricultural Sciences;Jiyuan 454650;3.Southenwest University of Science and Technology;Mianyang 621010;4.Henan Agricultural University;Zhengzhou 450002;China |
| Abstract: | The present paper introduces a new type of wheat male sterile(male sterile in tiller ear,MSTE),which can seed in main stem ears,but can not in tiller ears,and is not affected by sowing time.When the male sterile plants were crossed with common wheat varieties,the fertility of offsprings could be recovered by over 80%.Theresore,the fertility characteristics of male sterile line was only preserved by its selfing seeds in the main stem ears.The cytological observation indicated that there were many variations ... |
| Keywords: | Wheat Male sterile Chromosome variation of structure and mumber |
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