| Using of AFLP Marker to Predict the Hybrid Yield and Yield Heterosis in Rice |
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| 作者姓名： | 蔡 健 兰 伟 |
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| 作者单位： | 阜阳师范学院生物系,安徽,阜阳,236032 |
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| 基金项目： | 云南省国际科技合作项目(98C010). |
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| 摘 要： | 利用AFLP分子标记对46个水稻品种进行遗传多样性分析,继而研究分子标记遗传距离与按照NC设计获得的195个杂交组合的产量及特殊配合力的相关性,探讨预测杂种优势的可能性。结果表明:(1)通过UPGMA聚类分析(图3),可将供试材料分为16个类群,并把来源不明的品种(系)划分到相应类群中,从而对这些材料进行初步鉴定。可见,AFLP分子标记是检测类内品种间遗传差异的有效方法,为水稻品种(系)亲本选配提供理论依据。(2)分子标记遗传距离与杂种产量优势、F1产量、特殊配合力之间都呈显著正相关,相关系数介于0.3235-0.7713之间。但相关程度还不足以预测杂种优势。增效座位和减效座位以及使用与杂种优势有关的QTL连锁标记位点可能提高杂种优势的预测能力,但最终解决,将依赖于杂种优势遗传机理的研究。
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| 关 键 词： | 水稻 AFLP 遗传距离 杂种优势预测 |
Using of AFLP Marker to Predict the Hybrid Yield and Yield Heterosis in Rice |
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| Cai Jian,Lan wei.Using of AFLP Marker to Predict the Hybrid Yield and Yield Heterosis in Rice[J].Chinese Agricultural Science Bulletin,2005,21(4):39-39. |
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| Authors: | Cai Jian Lan wei |
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| Institution: | (The biological department of Fu Yang Normal University，Fu Yang 236032 Anhui) |
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| Abstract: | Genetic diversity among 46 rice clusters was studied using the AFLP molecular marker, and relationship between genetic distance(GD)and hybrid performance in a diallel set of crosses between them was assessed. The results indicated as follows (1) The cluste |
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| Keywords: | Rice Amplified fragment length polymorphism Genetic distance Heterosis |
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