Department of Plant Breeding and Biometry, Cornell University, 252 Emerson Hall, 14853, Ithaca, NY, USA.
Theor Appl Genet. 1996 Feb;92(2):204-12. doi: 10.1007/BF00223377.
We have examined the genetics of systemic resistance in Phaseolus vulgaris to azuki bean mosaic virus (AzMV) and cowpea aphid-borne mosaic virus (CABMV) and the relationship of this resistance to a phenotypically similar resistance to watermelon mosaic virus (WMV) and soybean mosaic virus (SMV). In P. vulgaris cv 'Great Northern 1140' (GN1140), resistance to SMV and WMV has been attributed to the genes Smv and Wmv, respectively, which have been shown to segregate as a unit. Systemic resistance to AzMV is conferred by two incompletely dominant alleles, Azm1 and Azm2, at unlinked loci. At least three resistance alleles must be present at these two loci for systemic resistance to be expressed in the plant. Systemic resistance to CABMV in GN 1140 is conditioned by a dominant allele that has been designated Cam2. Under some environmental conditions, a recessive allele at an unlinked locus, cam3, also controls a resistant response to CABMV. Resistance to AzMV and CABMV does not assort independently from Wmv/Smv, but also does not consistently cosegregate, suggesting that perhaps in each case one of the factors involved in resistance is associated with Smv/Wmv.
我们研究了菜豆对豇豆花叶病毒（AzMV）和豇豆蚜传花叶病毒（CABMV）的系统抗性的遗传学，以及这种抗性与对西瓜花叶病毒（WMV）和大豆花叶病毒（SMV）表型相似的抗性的关系。在 P. vulgaris cv 'Great Northern 1140'（GN1140）中，SMV 和 WMV 的抗性分别归因于 Smv 和 Wmv 基因，这些基因已被证明作为一个单位进行分离。AzMV 的系统抗性由两个不连锁的位点上的两个不完全显性等位基因 Azm1 和 Azm2 赋予。在这两个位点上至少存在三个抗性等位基因，才能在植物中表现出系统抗性。GN 1140 对 CABMV 的系统抗性由一个显性等位基因 Cam2 决定。在某些环境条件下，一个不连锁位点上的隐性等位基因 cam3 也控制对 CABMV 的抗性反应。AzMV 和 CABMV 的抗性与 Wmv/Smv 不独立分配，但也不一致连锁，这表明在每种情况下，抗性涉及的一个因素可能与 Smv/Wmv 有关。
