Genomic sequences of 343 Xanthomonas citri pv. citri strains from Florida

Xanthomonas citri pv. citri (Xcc) causes the devastating citrus canker disease. Xcc is known to have been introduced into Florida, USA in at least three different events in 1915, 1986 and 1995 with the first two claimed to be eradicated. Here, we investigated the population structure of Xcc to understand the mysteries related to its introduction, spread and eradication, and how Xcc strains have evolved in term of pathogenicity and copper resistance. We sequenced whole genome sequences of 343 Xcc strains collected from Florida groves over 20 years.柑橘黄单胞菌柑橘致病变种（Xanthomonas citri pv. citri, Xcc）可引发极具破坏性的柑橘溃疡病。已知该病菌至少于1915年、1986年和1995年三次传入美国佛罗里达州，其中前两次传入的菌株据称已被根除。本研究针对Xcc的种群结构展开分析，旨在解析其传入、扩散与根除相关的未解之谜，并阐明Xcc菌株在致病性与铜抗性方面的演化规律。我们对20余年间从佛罗里达州柑橘果园采集的343株Xcc菌株进行了全基因组测序。