| 水稻根系性状QTL的整合、分类和真实性分析 |
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| 引用本文： | 穆平,班超.水稻根系性状QTL的整合、分类和真实性分析[J].中国农学通报,2009,25(19):20-25. |
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| 作者姓名： | 穆平 班超 |
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| 作者单位： | 青岛农业大学生命科学学院,山东青岛,266109 |
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| 基金项目： | 山东省中青年科学家科研奖励基金"旱稻抗旱QTL与玉米、小麦的比较基因组研究及精细定位"，山东省自然科学基金资助"早稻耐旱OTL精细定位及比较基因组联系" |
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| 摘 要： | 为提高水稻根系性状QTL 分子标记辅助选择利用效率, 利用饱和分子标记连锁图谱，对已发表的水旱稻根系性状QTL进行了整合，并对这些QTL的贡献率、分布特点和真实性进行了分析。结果如下：通过对QTL贡献率分析得到11个主效QTL;根据QTL在染色体上的位置，确定1，2，3，5，11号染色体上共11个分子标记区域为“一因多效”可能性较大区域；通过对这些QTL的真实性分析共得到35个“真实”QTL和3个“热点”QTL。这些主效QTL、成簇分布QTL及“热点” QTL可作为水稻根系性状分子育种的重要候选区域。
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| 关 键 词： | 高吸水性树脂 高吸水性树脂 腐殖酸钠 保水性能 缓释功能 |
| 收稿时间： | 2009-05-05 |
| 修稿时间： | 2009-06-02 |
Intergratation,Classification and Facticity Analysis of QTLs for Root Morphological Traits in Rice |
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| Ban Chao,Zhang Xiaoling,Mu Ping.Intergratation,Classification and Facticity Analysis of QTLs for Root Morphological Traits in Rice[J].Chinese Agricultural Science Bulletin,2009,25(19):20-25. |
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| Authors: | Ban Chao Zhang Xiaoling Mu Ping |
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| Institution: | ( College of Life Sciences, Qingdao Agricultural University, Qingdao 266109) |
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| Abstract: | To improve the utility efficiency of molecular marker assistant selection for drought-resistance traits of rice roots, by using the saturated molecular marked genetic linkage map, we integrated published QTLs for drought-resistance traits of rice roots and analysed the contribution rate, characters of distribution and facticity. The results are as below: Eleven main effect QTLs were determined by the analysis of contribution rate; Eleven QTL regions on chromosome 1,2,3,5,11 were confermed to have pleiotrophic effect according to location of QTLs on each chromosome; Thirty five “real-QTLs” and three “hot-QTLs” are found through the facticity analysis of these QTLs. These main effect QTLs ，pleiotrophic QTLs and “hot-QTLs”can be treated as a significant candidate area for molecular breeding of drought-resistance traits of rice roots. |
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| Keywords: | QTL |
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