Leaf rust (caused by Puccinia recondita f. sp. tritici) is the most widespread and regularly occurring rust on wheat. Genetic resistance is the most economical method of reducing yield losses due to leaf rust. To date, 46 leaf rust resistance genes have been designated and mapped in wheat. Resistance gene expression is dependent on the genetics of host-parasite interaction, temperature conditions, plant developmental stage, and interaction between resistance genes with suppressors or other resistance genes in the wheat genomes. Genes expressed in seedling plants have not provided long-lasting effective leaf rust resistance. Adult-plant resistance genes Lr13 and Lr34 singly and together have provided the most durable resistance to leaf rust in wheat throughout the world. Continued efforts to isolate, characterize, and map leaf rust resistance genes is essential given the ability of the leaf rust fungus to overcome deployed resistance genes.

中文翻译：

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抗小麦叶锈病的遗传学。

叶锈病（由小麦锈病引起的锈病）是小麦上最普遍且经常发生的锈病。遗传抗性是减少因叶锈病导致的产量损失的最经济的方法。迄今为止，已经在小麦中指定和定位了46种抗叶锈病基因。抗性基因的表达取决于宿主-寄生虫相互作用，温度条件，植物发育阶段以及抗性基因与小麦基因组中抑制子或其他抗性基因之间的相互作用。幼苗植物中表达的基因没有提供持久的有效叶锈病抗性。成年植物抗性基因Lr13和Lr34一起提供了全世界小麦对叶锈病的最持久抗性。继续努力隔离，表征，