Contrasting complexity of two rust resistance loci in flax.
收藏PubMed Central1995-05-09 更新2026-05-02 收录
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https://pmc.ncbi.nlm.nih.gov/articles/PMC41908/
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资源简介：
DNA probes from the L6 rust resistance gene of flax (Linum usitatissimum) hybridize to resistance genes at the unlinked M locus, indicating sequence similarities between genes at the two loci. Genetic and molecular data indicate that the L locus is simple and contains a single gene with 13 alleles and that the M locus is complex and contains a tandem array of genes of similar sequence. Thus the evolution of these two related loci has been different. The consequence of the contrasting structures of the L and M loci on the evolution of different rust resistance specificities can now be investigated at the molecular level IMAGES:
源自亚麻（Linum usitatissimum）L6锈病抗性基因的DNA探针（DNA probes）可与非连锁M位点的抗性基因杂交，表明两个位点的基因存在序列相似性。遗传与分子数据显示，L位点结构简单，仅含1个具有13个等位基因的单基因；而M位点结构复杂，由序列相似的基因串联阵列构成。因此，这两个相关位点的演化路径存在差异。如今可在分子水平上探究L与M位点的迥异结构对不同锈病抗性特异性演化的影响。IMAGES:
提供机构：
National Academy of Sciences
创建时间：
1995-05-09
