CHROMOSOME LOCATION AND LINKAGE OF A NEW GENE (LR33) FOR REACTION TO PUCCINIA-RECONDITA IN COMMON WHEAT
CHROMOSOME LOCATION AND LINKAGE OF A NEW GENE (LR33) FOR REACTION TO PUCCINIA-RECONDITA IN COMMON WHEAT
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作者：
DYCK, PL;KERBER, ER;LUKOW, OM
一个抗隐匿柄锈菌的基因，最初在小麦（Triticum aestivum L.）已定位于染色体1B，3.1 ±-的长臂上。1.2交叉单位从着丝粒。在含有该新基因（现称为Lr 33）的回交系RL 6057与含有基因Lr 26的回交系RL 6078之间的杂交中，基因Lr 33与基因Lr 26（或易位断裂点）紧密连锁，估计为2.6 ± 1。0.8 1B或1 R。带型差异与Lr 26的存在或不存在完全相关。
A gene for resistance to Puccinia recondita, originally detected in wheat (Triticum aestivum L.) accessions PI58548, PI268454, and PI268316, has been located on the long arm of chromosome 1B, 3.1 .+-. 1.2 crossover units from the centromere. In a cross between the backcross line RL6057 containing this new gene, now designated Lr33, and the backcross line RL6078 containing gene Lr26, gene Lr33 is closely linked to gene Lr26 (or the translocation breakpoint) with an estimated 2.6 .+-. 0.8 1B or 1R. The banding difference was completely associated with the presence or absence of Lr26.