COMPARATIVE LINKAGE MAPS OF THE RICE AND MAIZE GENOMES
COMPARATIVE LINKAGE MAPS OF THE RICE AND MAIZE GENOMES
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DOI：
10.1073/pnas.90.17.7980
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发表时间：
1993-09-01
影响因子：
11.1
通讯作者：
TANKSLEY, SD
中科院分区：
文献类型：
--
作者：
AHN, S;TANKSLEY, SD
利用同一组cDNA克隆检测到的同源位点，构建了水稻和玉米基因组的遗传连锁图谱。保守的连锁组可以被确定，它们加起来占两个基因组的三分之二以上。在某些情况下，整个染色体或染色体臂在基因顺序和基因内容方面几乎相同。结果还表明，在古代多倍体化过程中复制的大部分基因（约72%）仍然存在于玉米基因组的重复拷贝中。水稻和玉米的比较图谱为解释这两个重要物种之间的分子、遗传和育种信息提供了基础，并为最终连接所有禾本科物种的遗传建立了框架。
Genetic linkage maps have been constructed for the rice and maize genomes on the basis of orthologous loci detected with a common set of cDNA clones. Conserved linkage groups could be identified, which together account for more than two-thirds of both genomes. In some instances, entire chromosomes or chromosome arms are nearly identical with respect to gene order and gene content. The results also reveal that most of the genes (>72%) duplicated during ancient polyploidization are still present in the maize genome in duplicate copy. The comparative maps of rice and maize provide a basis for interpreting molecular, genetic, and breeding information between these two important species and establish a framework for ultimately connecting the genetics of all grass species.