A LINKAGE MAP BASED ON INFORMATION FROM 4 F2 POPULATIONS OF MAIZE (ZEA-MAYS L)
A LINKAGE MAP BASED ON INFORMATION FROM 4 F2 POPULATIONS OF MAIZE (ZEA-MAYS L)
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DOI：
10.1007/bf00226803
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发表时间：
1991-01-01
影响因子：
5.4
通讯作者：
GRANT, D
中科院分区：
文献类型：
--
作者：
BEAVIS, WD;GRANT, D
近年来，一些研究小组建立了基于限制性片段长度多态性（RFLPs）的玉米遗传图谱。一些报告的地图是根据来自单一种族隔离群体的数据，而另一些则是根据来自几个种族隔离群体的信息。从几个种族隔离的人口中收集信息的潜在问题尚未得到报告。这些因素包括：很少有遗传标记在所有种群中都是多态的，对种群间连锁的估计可能不同，种群大小也可能不同。我们利用对数似然统计来绘制部分重叠的信息性遗传标记集的遗传图谱，以检验群体间重组的同质性，并基于来自四个F2群体的汇总数据提出了一个复合RFLP连锁图谱。
Recently, maize (Zea mays L.) genetic maps based primarily upon segregating restriction fragment length polymorphisms (RFLPs) have been developed by several research groups. Some of the reported maps were based upon data from a single segregating population, whereas others were based upon information from several segregating populations. Potential problems with pooling information from several segregating populations have not been reported. These include the fact that few genetic markers are polymorphic in all populations, estimates of linkage may differ among populations, and population sizes may differ. We utilize the log-likelihood statistic to genetically map partially overlapping sets of informative genetic markers, to test homogeneity of recombination among populations, and to present a composite RFLP linkage map based upon data pooled from four F2 populations.