Combined linkage maps and QTLs in sugar beet (Beta vulgaris L.) from different populations
Combined linkage maps and QTLs in sugar beet (Beta vulgaris L.) from different populations
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不同群体甜菜 (Beta vulgaris L.) 的组合连锁图谱和 QTL
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
G. Koch
中科院分区：
文献类型：
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作者：
W. Weber;D. Borchardt;G. Koch
基因图谱的构建是一个昂贵且耗时的过程。因此，育种者有兴趣使用从其他作图群体开发的图谱，但这只有在感兴趣的染色体区域的遗传结构相似时才有可能。本文对甜菜（Beta vulgaris L.）与常见多态性标记位点进行比较。用MAPMAKER 3.0和JOINMAP 2.0构建地图。两种作图程序一般都给出了相同的标记顺序。然而，共有标记的数量太少，无法构建所有染色体的组合图谱。对于一个群体，与其他两个群体相比，MAPMAKER 3.0构建的图谱比JOINMAP 2.0构建的图谱长得多。
其中两个群体的产量性状也可从不同的环境。对于产量数据的数量性状基因座（QTL）分析，使用软件包MAPMAKER/QTL 1.1和PLABQTL。未检测到两个群体共有的QTL。所用程序和版本对QTL定位有很大影响。与环境也有很强的相互作用。
The construction of genetic maps is an expensive and time-consuming process. The breeder is therefore interested in using maps developed from other mapping populations but this is only possible if the genetic structure is similar for the chromosomal regions of interest. In this paper, maps of three populations of sugar beet (Beta vulgaris L.) with common polymorphic marker loci are compared. Maps were constructed with MAPMAKER 3.0 and JOINMAP 2.0. Both mapping programs gave, in general, the same order for common markers. However, the number of common markers was too low to construct a combined map for all chromosomes. For one population, in contrast to the other two, the map constructed with MAPMAKER 3.0 was much longer than that constructed with JOINMAP 2.0.
For two of these populations yield traits were also available from different environments. For quantitative trait loci (QTL) analysis of the yield data, the packages MAPMAKER/QTL 1.1 and PLABQTL were used. No QTL common for the two populations could be detected. The program and the version used strongly influenced the estimated positions of QTLs. There was also a strong interaction with environments.