| 摘要: |
| [目的]为从分子水平理解油菜主要数量性状的遗传规律.[方法]对近年来油菜遗传图谱构建以及主要数量性状的QTL进展进行了综述.[结果]分子标记种类、数量、比例、作图群体和作图方法等是影响遗传图谱质量的关键因素;油菜上一些较高质量的遗传图谱为其数量性状的初步定位奠定了基础,但还需要不同研究者的相互协作,最终形成统一的高质量遗传图谱; 概括并比较了近年来油菜主要品质性状、产量性状及其他性状QTL定位的最新结果, 为加快油菜育种提供了分子遗传理论依据;阐明了油菜数量性状QTL定位的现状、问题及可能的解决方法.[结论]构建统一的、高质量的油菜遗传图谱,以更好地定位油菜的重要数量性状等,加快实现重要性状的标记辅助选择和对其主效基因的克隆,最终育成优良品种,是当前和未来的主要目标. |
| 关键词: 甘蓝型油菜 QTL定位 遗传图谱 |
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| 基金项目:国家“973”项目“油菜籽油脂形成的分子生物学机制及其代谢调控”（2006CB 101600/07） |
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| Research advances in QTL of oilseed rape (Brassica napus L.) |
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| Abstract: |
| 【Objective】 The study was done to understand intrinsic genetic law on molecular level for the main quantitative characters in oilseed rape.【Method】 The current advance was reviewed of genetic linkage map and mapping quantitative trait loci (QTL) for main quantitative traits in oilseed rape.【Result】 The types,numbers and proportion of molecular marker,population and methodology of QTL mapping et al were the key factors for constructing genetic map.The existing genetic maps with high-quality established the base of QTL in oilseed rape,but it was indispensable to construct a consensus and high-quality genetic map through cooperation between different researchers.The latest results of QTL for yield characters,quality characters and others in oilseed rape were summarized and compared,which provide molecular genetic theory for accelerating rapeseed breeding.And the current situations and problems and resolutions in the field were discussed.【Conclusion】 How to construct a high quality genetic map in oilseed rape to better locate QTL for important quantitative traits,to accelerate QTL marker assisted selection and the cloning of the main genes of important quantitative traits for the breeding of excellent variety finally,is the main target now and in the future. |
| Key words: Brassica napus L QTL location genetic mapping |
