| 林木遗传图谱构建和数量性状基因定位 |
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| 引用本文： | 尹佟明,黄敏仁.林木遗传图谱构建和数量性状基因定位[J].世界林业研究,1995,8(3):6-12. |
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| 作者姓名： | 尹佟明 黄敏仁 |
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| 作者单位： | 南京林业大学 |
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| 摘 要： | 本文简要介绍了９０年代以来利用ＲＦＬＰ和ＲＡＰＤ分子标记的构建林木的遗传连锁图谱，并应用高密度的遣传连锁图谱上的分子标记进行林木重要数量性状的ＱＴＬ作图，进而阐明了控制多基因的数目，确定ＱＴＬ在染色体上的位置，测定单个基因的作用效应，遗传连锁图谱构建和数量性状基因定位预示林木遗传育种研究将产生深刻的变革。
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| 关 键 词： | 林木 遗传图谱 数量性状 基因位点 作图群体 |
| 收稿时间： | 1994/6/21 0:00:00 |
Genetic Linkage Maps Constructing QTLs Mapping in Forest Trees and Qtls Mapping in Forest Trees |
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| Yin Tongming and Huang Minren.Genetic Linkage Maps Constructing QTLs Mapping in Forest Trees and Qtls Mapping in Forest Trees[J].World Forestry Research,1995,8(3):6-12. |
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| Authors: | Yin Tongming and Huang Minren |
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| Abstract: | Abstract This essay simply describes the construction of genetic maps using RFLP and RAPD markers and introduces the use of markers in mapping the important QTLs on a high density linkage map since 90's. Through map constructing and QTLs mapping, we can reveal the number of genes which control the quantitive trait, locate QTLs on chromosomes and estimate the effect of single genes. Up to now, map constructing has been done in more than eight tree spieces, such as popular, scots pine, eucalypts, slash pine, sugar pine, American chestnut ect. Some important QTLs have been mapped on the corresponding genetic maps, such as disease resistance, growth, wood quality and so on. Choosing suitable pedigrees is a key step for map constructing and QTL locating. Map constructing in trees is quite different from that in agronomic crops. F2 or backcross 1 population, backcross 2 population, full-sib cross pedigree and haploid have been established respectively according to the feature of different tree spieces, which make it possible for such research carried out in forest trees. Although there are some limitations of their near-term applification, constructing genetic maps and mapping QTLs suggest that there will be profound reformation in the study of forest genetics and breeding. |
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