Phenotypic data for aggressiveness components of Puccinia triticina isolates on bread wheat varieties and scripts for statistical analysis with R

Aggressiveness of a plant pathogen can be defined as the quantitative variation of pathogenicity on a compatible host and is measured by evaluating quantitative traits expressed during the host–pathogen interaction, i.e. the components of aggressiveness. The most widely assessed aggressiveness components for rust pathogens are infection efficiency (IE), latency period (LP) and sporulation capacity (SP). Puccinia triticina is a fungal pathogen responsible of the wheat leaf rust disease. We measured the three aforementioned aggressiveness components for 44 P. triticina isolates representative of the two pathotypes 106 314 0 and 166 317 0, and the two most common genotypes G1 and G2 within each pathotype. The evaluations were realized on seedlings of different bread wheat varieties, in five experimental series. In series 1 and 2, isolates of the four pathotype-genotype combinations were evaluated on varieties Apache and Michigan Amber. In series 3, 4 and 5, isolates of pathotype 106 314 0-G1 and -G2 were evaluated on varieties Aubusson, Premio, Michigan Amber, Sankara, Expert and Bermude. This dataset is composed of 9 .XLSX data files corresponding to the three aggressiveness components measured in series 1, 2 and 3+4+5, respectively, and of 2 .R text files containing the scripts used in the software R for statistical analysis of the data set.植物病原物的致病力强度（aggressiveness）可定义为亲和寄主上致病性的数量变异，可通过评估寄主与病原物互作过程中表达的数量性状（即致病力强度组分）进行测定。锈菌病原物最常被评估的致病力强度组分包括感染效率（infection efficiency, IE）、潜育期（latency period, LP）与产孢能力（sporulation capacity, SP）。小麦叶锈菌（Puccinia triticina）是引发小麦叶锈病的真菌病原物。本研究针对44个小麦叶锈菌分离株测定了上述三种致病力强度组分，这些分离株代表两种致病型106 314 0与166 317 0，且每种致病型内包含两种最常见基因型G1与G2。相关评价在五个试验系列中完成，供试材料为不同面包小麦品种的幼苗。其中，第1、2系列中，针对四种致病型-基因型组合的分离株，于Apache与Michigan Amber两个小麦品种上开展评价；第3、4、5系列中，针对致病型106 314 0的G1与G2基因型分离株，于Aubusson、Premio、Michigan Amber、Sankara、Expert及Bermude六个小麦品种上开展评价。本数据集包含9个.XLSX数据文件，分别对应第1、2系列及第3、4、5合并系列中测定的三种致病力强度组分；另含2个.R文本文件，内含用于该数据集统计分析的R软件脚本。