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Table 3 Presence and absence of specific virulence-associated key factors in the genomes of 9 Bordetella species

From: Acquisition and loss of virulence-associated factors during genome evolution and speciation in three clades of Bordetella species

Key factor\Species B. bronchiseptica B. parapertussis B. pertussis B. holmesii B. hinzii B. avium B. trematum B. petrii B. ansorpii
BvgA/BvgS/FHA + + + + + + + + -
DNT 45/58 + + - - + - - -
T1SS-ACT 55/58 + + - - - - - -
T2SSa - - - - + + - 2/3 +
T2SSb - - - - - - - - +
T2SSc - - - - - - - - 1/2
Type IV Pilus A + + d d + d - + +
Type IV Pilus B + + d d + + + + +
Type IV Pilus C + + d d + + + + +
Type IV Pilus D + 1/2 - - - - - - -
Type IV Pilus E - - - - - - - - +
Type IV Pilus F - - - - - - - - +
T3SS + + + - - - - - +
T4SS-Pertussis Toxin 42/58 d + - - - - - -
T5SS-Pertactin + + + - - - - - -
T6SSa 51/58 + - - - - - + +
T6SSb - - - - 5/6 + - - -
T6SSc - - - - - - - 1/3 -
O-antigenA (wbm locus)a 51/58 1/2 - - - - - - -
O-antigenB (BAV0081-89) - - - - - + - - -
Capsule A + + + + + - - - -
Capsule B - - - - + + + - -
Capsule C - - - - - - - - 1/2
Cellulose synthesis - - - - + + + - +
Flagella + 1/2 + - + + + + +
Alcaligin receptor + + + + - - - - -
Heme receptor + + + + + + + - d
Enterobactin receptor + d + + + + + + -
  1. d degenerate, likely not functional
  2. a- B. trematum and B. ansorpii may potentially contain other, additional O-antigen synthesis loci