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| 小麦RIL群体SSR标记偏分离的遗传分析 | |
| 引用本文： | 刘刚,许盛宝,倪中福,李晶,秦丹丹,窦秉德,彭惠茹,孙其信. 小麦RIL群体SSR标记偏分离的遗传分析[J]. 农业生物技术学报, 2007, 15(5): 828-833 |
| 作者姓名： | 刘刚 许盛宝 倪中福 李晶 秦丹丹 窦秉德 彭惠茹 孙其信 |
| 作者单位： | 1. 新疆农业大学农学院,乌鲁木齐,830052 2. 中国农业大学植物遗传育种系,北京,100094 3. 淮阴师范学院植物生物技术研究所,淮安,223300 |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| 摘 要： | 以普通小麦3338与斯卑尔脱小麦Altgold杂交得到的F6代重组近交系群体为材料，筛选出334个（271个SSR和63个EST-SSR标记）多态性标记，以此为基础构建了一个包含287个分子标记的遗传图谱。对这些多态性标记进行偏分离分析发现82个表现为偏分离（P＜0.05），其中70个可以定位到遗传连锁图谱中。这些偏分离标记中有33个标记位点偏向母本3338，占40.2%，49个标记位点偏向父本Altgold，占59.8%。这些偏分离标记在图谱上的分布有两种：成簇分布和孤立位点的偏分离。在5条不同染色体上发现6个偏分离热点区域，这些偏分离热点区域的形成可能与配子体选择有关。 |
| 关 键 词： | 小麦 偏分离 分子标记 重组近交系 |
| 文章编号： | 1006-1304（2007）05-0828-06 |
| 收稿时间： | 2007-03-05 |
| 修稿时间： | 2007-04-02 |
Genetic Analysis of Segregation Distortion of Molecular Markers in Wheat RIL Population |
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| LIU Gang,XU Sheng-bao,NI Zhong-fu,LI Jing,QIN Dan-dan,DOU Bing-de,PENG Hui-ru,SUN Qi-xin. Genetic Analysis of Segregation Distortion of Molecular Markers in Wheat RIL Population[J]. Journal of Agricultural Biotechnology, 2007, 15(5): 828-833 | |
| Authors: | LIU Gang XU Sheng-bao NI Zhong-fu LI Jing QIN Dan-dan DOU Bing-de PENG Hui-ru SUN Qi-xin |
| Affiliation: | 1.College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China; 2.Department of Plant Breeding, China Agricultural University, Beijing 100094, China; 3.Institute of Plant Biotechnology, Huaiyin Teachers College, Huaian 223300, China |
| Abstract: | Abstract: Using a RIL population derived from a cross between a common wheat 3338 and spelt wheat Altgold, a genetic linkage map was constructed comprising of 287 out of totally 344 polymorphic markers （271 SSR and 63 EST-SSR markers）. Among the 334 polymorphic markers, 82 markers showed the significantly segregation distortion (P＜0.05), favoring either the maker alleles of female parent 3338(33, 40.2%) or male parent Altgold (49,59.8％). Segregation distortion markers distribution along the present molecular maps of wheat was far from uniform, with clusters of tightly linked loci and single markers. 6 segregation distortion regions (clusters of 3-6 makers) were detected on 5 chromosomes, indicating that possible causes for segregation deviation of molecular markers are gametic selection. |
| Keywords: | wheat segregation distortion molecular marker RIL |
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