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Table 1 Major lineage-specific gene family expansions leading to differences in the P. ultimum gene complement compared to Phytophthora

From: Genome sequence of the necrotrophic plant pathogen Pythium ultimum reveals original pathogenicity mechanisms and effector repertoire

Biological process Comparison to Phytophthora Protein family expansions (number of genes in P. ultimum/Ph. ramorum)
Proteolysis Over-represented HECT E3 ubiquitin ligase (56/28)
   Subtilisin-related serine protease S8A (43/7)
   Trypsin-related serine protease S1A (17/31)
   Pepsin-related aspartyl protease A1 (25/15)
   Metalloprotease M12 (12/3)
Intracellular Under-represented PTHR23257 S/T protein kinase (78/158)
signaling cascade   PTHR22985 S/T protein kinase (23/51)
   PTHR22982, CaM kinase (50/85)
   Phospholipase D (9/18)
Sulfur metabolism Under-represented Sulfatase (7/14)
   Cysteine desulfurylase (4/11)
   Sulfate transporter (10/18)
Water transport Under-represented Aquaporin (11/35)