Diversity of Phytophthora Species Associated with Quercus ilex L. in Three Spanish Regions Evaluated by NGS

Forests

Mónica Berbegal¹  Paloma Abad-Campos¹  Beatriz Mora-Sala¹  David Gramaje² 

[1] Instituto Agroforestal Mediterráneo, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain;Instituto de Ciencias de la Vid y del Vino, Consejo Superior de Investigaciones Científicas–Universidad de la Rioja–Gobierno de La Rioja, Ctra. de Burgos km. 6, 26007 Logroño, Spain;

关键词: forest disease monitoring;    oomycetes;    natural ecosystems;    holm oak decline;   

DOI  :  10.3390/f10110979

来源: DOAJ

【 摘 要 】

The diversity of Phytophthora species in declining Fagaceae forests in Europe is increasing in the last years. The genus Quercus is one of the most extended Fagaceae genera in Europe, and Q. ilex is the dominant tree in Spain. The introduction of soil-borne pathogens, such as Phytophthora in Fagaceae forests modifies the microbial community present in the rhizosphere, and has relevant environmental and economic consequences. A better understanding of the diversity of Phytophthora spp. associated with Q. ilex is proposed in this study by using Next Generation Sequencing (NGS) in six Q. ilex stands located in three regions in Spain. Thirty-seven Phytophthora phylotypes belonging to clades 1 to 12, except for clades 4, 5 and 11, are detected in this study, which represents a high diversity of Phytophthora species in holm oak Spanish forests. Phytophthora chlamydospora, P. citrophthora, P. gonapodyides, P. lacustris, P. meadii, P. plurivora, P. pseudocryptogea, P. psychrophila and P. quercina were present in the three regions. Seven phylotypes could not be associated with known Phytophthora species, so they were putatively named as Phytophthora sp. Most of the detected phylotypes corresponded to terrestrial Phytophthora species but aquatic species from clades 6 and 9 were also present in all regions.

【 授权许可】

Unknown