Anthracnose caused by Colletotrichum lentis is an important fungal disease of lentil in western Canada. Two known pathogenic C. lentis races, race 0 and race 1 have been identified and current cultivars of lentil have little or no resistance to the virulent race 0. Seven Lens culinaris subsp. culinaris landrace accessions were previously reported to have resistance to C. lentis race 0. In this study, accession VIR-2633, with reported resistance to both races of C. lentis, and seven accessions were assessed for race 0 resistance relative to LR-59-81, an interspecific line derived from a L. culinaris subsp. culinaris × Lens ervoides cross. The results showed a lack of effective resistance to race 0 among the tested L. culinaris accessions when compared to that of LR-59-81. A few sublines displayed modest improvements in resistance compared to the susceptible check ‘Eston’, but were significantly more susceptible than LR-59-81. Moreover, screening of the sublines of accession VIR-2633 identified 12 sublines with resistance to race 1, but all VIR-2633 sublines were susceptible to race 0. The study underlined the importance of wild lentil germplasm for broadening the genetic base of cultivated lentil and their usefulness in disease screening experiments as positive checks.

中文翻译：

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对 Lens culinaris Medikus subsp. 中的 Colletotrichum lentis 毒株缺乏有效抗性。烹饪

引起的炭疽病炭疽菌是加拿大西部扁豆的一种重要真菌病害。两种已知的致病C. lentis种族、种族 0 和种族 1 已被确定，目前的小扁豆品种对剧毒种族 0 几乎没有或没有抵抗力。七烹饪透镜亚种烹饪据报道，地方品种种质对C. lentis种族 0。在这项研究中，加入 VIR-2633，据报道对C. lentis, 并评估了 7 个种质相对于 LR-59-81 的种族 0 抗性，LR-59-81 是一种源自L. culinaris亚种烹饪×镜片脱落叉。结果表明，受试人群对0号种族缺乏有效抵抗力L. culinaris与 LR-59-81 相比。与易感检查'Eston'相比，一些亚系显示出适度的抗性改善，但明显比LR-59-81更易感。此外，对加入 VIR-2633 亚系的筛选确定了 12 个对小种 1 具有抗性的亚系，但所有 VIR-2633 亚系都对小种 0 敏感。该研究强调了野生小扁豆种质对于拓宽栽培小扁豆的遗传基础和它们在疾病筛查实验中作为阳性检查的有用性。