Mesanza Nebai, Barnes Irene, van der Nest Ariska, Raposo Rosa, Berbegal Mónica, Iturritxa Eugenia
Neiker-BRTA, Instituto Vasco de Investigación y Desarrollo Agrario, Granja Modelo s/n, Antigua Carretera Nacional 1, Km. 355, 01192 Arkaute, Spain.
Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0083, South Africa.
J Fungi (Basel). 2023 Jun 9;9(6):651. doi: 10.3390/jof9060651.
is one of the most damaging species affecting plantations in Spain. Favourable climatic conditions and unknown endogenous factors of the pathogen and host led to a situation of high incidence and severity of the disease in these ecosystems. With the main aim of understanding the factors intrinsic to this pathogenic species, a study of the population structure in new established plantations with respect to older plantations was implemented. The genetic diversity, population structure and the ability of the pathogen to spread was determined in Northern Spain (Basque Country), where two thirds of the total plantations of Spain are located. From a total of 153 isolates analysed, two lineages were present; the southern lineage, which was prevalent, and the northern lineage, which was scarce. A total of 22 multilocus genotypes were detected with a balanced composition of both mating types and evidence for sexual reproduction. In addition to the changing environmental conditions enhancing disease expression, the complexity and diversity of the pathogen will make it difficult to control and to maintain the wood productive system fundamentally based on this forest species.
是影响西班牙种植园的最具破坏性的物种之一。有利的气候条件以及病原体和宿主未知的内在因素导致了这些生态系统中该疾病的高发病率和严重程度。为了主要了解这种致病物种的内在因素，开展了一项关于新建种植园与老种植园种群结构的研究。在西班牙北部（巴斯克地区）确定了病原体的遗传多样性、种群结构及其传播能力，西班牙三分之二的种植园位于该地区。在总共分析的153个分离株中，存在两个谱系；占主导地位的南方谱系和稀少的北方谱系。总共检测到22种多位点基因型，两种交配型组成平衡且有有性繁殖的证据。除了不断变化的环境条件加剧疾病表现外，病原体的复杂性和多样性将使得基于这种森林物种的木材生产系统难以从根本上进行控制和维持。
