Eight new <i> Halophytophthora</i> species from marine and brackish-water ecosystems in Portugal and an updated phylogeny for the genus

During an oomycete survey in December 2015, 10 previously unknown Halophytophthora taxa were isolated from marine and brackish water of tidal ponds channels saltmarshes, lagoon ecosystems river estuaries at seven sites along the Algarve coast South Portugal. Phylogenetic analyses LSU ITS datasets, comprising all described species, new relevant distinctive sequences available GenBank, provided updated phylogeny genus s. str. showing for first time a structure clades designated as Clades 1–10. Nine resided Clade 6 together with H. polymorphica vesicula . Based on differences morphology temperature-growth relations multigene (LSU, ITS, Btub , hsp90 rpl10 tigA cox1 nadh1 rps10 ) phylogeny, eight Portugal are here brevisporangia celeris frigida lateralis lusitanica macrosporangia sinuata thermoambigua Three have homothallic breeding system while remaining five species sterile. Pathogenicity litter decomposition tests underway to clarify their pathological ecological role brackish-water ecosystems. More surveys yet undersurveyed regions world population genetic or phylogenomic global populations needed origin species.