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葡萄牙产 var. 叶片中分离得到的六株 pv. 菌株的基因组资源序列草案。

Draft Genome Resources Sequences of Six pv. Strains Isolated from var. Leaves in Portugal.

机构信息

University of Coimbra, Centre for Functional Ecology, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal.

FitoLab, Laboratory for Phytopathology, Instituto Pedro Nunes, 3030-199 Coimbra, Portugal.

出版信息

Phytopathology. 2021 Jan;111(1):237-239. doi: 10.1094/PHYTO-05-20-0184-A. Epub 2020 Oct 16.

Abstract

pv. is a quarantine bacterium affecting all the Portuguese main areas of kiwifruit production. We report the draft genome of six pv. strains isolated from symptomatic leaves of var. in a study that determined the genetic population structure of the endophytic and epiphytic populations in two consecutive seasons. Average nucleotide identity values were above 99% similarity with reference strains from pv. biovar 3. The genomic differences found between these strains confirm the genetic diversity described for pv. population in Portugal. Furthermore, data provide evidence that the initial clonal expansion of pv. in Europe was followed by a genomic diversification constituting a valuable resource for epidemiological and evolutionary studies, namely when adopting strategies for epidemics management.

摘要

pv. 是一种检疫性细菌,影响葡萄牙所有主要猕猴桃产区。我们报告了从两个连续季节的症状性叶片中分离的 6 株 pv. 菌株的基因组草案,该研究确定了内生和外生种群的遗传群体结构。与 pv. 生物型 3 的参考菌株相比,平均核苷酸同一性值高于 99%的相似性。在这些菌株之间发现的基因组差异证实了葡萄牙 pv. 种群的遗传多样性。此外,数据表明 pv. 在欧洲的初始克隆扩张之后,基因组多样化构成了流行病学和进化研究的宝贵资源,特别是在采用疫情管理策略时。

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