Zebra chip (ZC) disease caused by the bacterium ‘Candidatus Liberibacter solanacearum’ (Lso) and vectored by the potato psyllid (Bactericera cockerelli Šulc.) inflicts significant yield and quality losses in potato. Potato plants infected with Lso produce tubers with an internal brown stripe pattern that is unacceptable to the potato processing industry. Potato varieties tolerant of ZC disease could reduce yield and quality losses caused by the disease, as well as diminish insecticide usage to control potato psyllids. Tetraploid potato clones selected from breeding programs in the US were screened in Texas under both greenhouse and field conditions. Chipping quality in tubers harvested from plants infested with Lso-infected psyllids and those harvested from from non-infested plants were compared, and tuber symptoms associated with ZC disease were evaluated. Clones showing good chipping quality and promising ZC tolerance in the greenhouse and first field trials were independently tested in a second field trial. Clones of the A07781 and TX12484 families consistently showed good processing quality and ZC tolerance over multiple evaluations. These findings indicate that good processing clones with tolerance to ZC disease are available. These clones could be used by potato breeding programs as parents and could also be used to study the genetics of tolerance to ZC disease.

由细菌' Candidatus Liberibacter solanacearum'（Lso）引起并由马铃薯木虱（Bactericera cockerelli）传染的斑马片（ZC）病Šulc。）造成马铃薯的大量产量和品质下降。感染Lso的马铃薯植株产生的块茎内部呈褐色条纹，这在马铃薯加工业中是无法接受的。耐ZC病的马铃薯品种可以减少由该病引起的产量和质量损失，并减少杀虫剂的使用以控制马铃薯木虱。从美国育种计划中选出的四倍体马铃薯克隆在温室和田间条件下都在德克萨斯州进行筛选。比较从受Lso感染的木虱感染的植物收获的块茎和从未感染的植物收获的块茎的切片质量，比较与ZC病相关的块茎症状。在温室和第一次田间试验中显示出良好的切片质量和有希望的ZC耐受性的克隆在第二次田间试验中进行了独立测试。在多次评估中，A07781和TX12484系列的克隆始终显示出良好的加工质量和ZC耐受性。这些发现表明可获得对ZC疾病具有耐受性的良好加工克隆。这些克隆可被马铃薯育种计划用作亲本，也可用于研究对ZC病的耐受性遗传学。