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. 2018 Sep 25;9:3911. doi: 10.1038/s41467-018-06388-7

Table 2.

Parameter values for fits of the single transducer population gating spring model

AEG QUI GAM AEG QUI GAM
Channel number, N 544.6*** 801.8*** 764.1*** 106.9*** 73.8*** 60.5***
Channel gating force, z (fN) 23.7***,† 22.1***,† 34.4***,† 51.0*** 56.4*** 144.9***
KINFINITY (µN/m) 93.8***,†† 103.1***,†† 147.8**,†† 178.3***,†† 190.6***,†† 283.8**,††
KSTEADY (µN/m) 82.4***,† 85.7***,††† 112.7***,††† 147.7***,† 159.1***,† 208.1***,†
KGS (µN/m) 11.5***,††† 17.3**,††† 35.1***,††† 30.5***,††† 31.5**,††† 75.8***,†††
Extent of nonlinearity 0.202*,†† 0.235*,†† 0.379***,†† 0.096*,††† 0.076*,†† 0.276***,†††
CAP50 (nm) 1079*** 741*,† 1425***, 180*** 145* 135***
λ90 (nm/mdeg) 1023.9/58.7 1098.3/62.9 705.0/40.4 476.1/27.3 430.9/24.7 167.6/9.6

Function fit values for a single transducer population fit to median stiffness values (unified to a measurement height of 1 mm above flagellar base, see Supplementary Table 1 for flagellar lengths for each sex and species) for female and male Ae. aegypti (AEG), Cx. quinquefasciatus (QUI) and An. gambiae (GAM). N is the estimated number of transducer channels and z is the force change following the opening of a transducer channel for one gating spring. Here, KINFINITY is the asymptotic flagellar stiffness at large displacements, whilst KSTEADY is the combined linear elasticity of the flagellar joint and neurons of the flagellar receiver. KGS (the gating spring stiffness) was calculated as KINFINITY − KSTEADY and so provides information on transducer module mechanical integrity. The extent of nonlinearity indicates the degree to which the system is nonlinear. CAP50 values refer to the minimum flagellar displacement required to produce an antennal nerve response of 50% of the maximum response. λ90 values refer to the displacement at which 90% of the transducers are predicted to be open. Significant differences between conspecific female and male mosquitoes are starred (ANOVA on ranks; *p < 0.05; **p < 0.01; ***p < 0.001). Significant differences between mosquitoes of the same sex but of different species are also highlighted (ANOVA on ranks; p < 0.05; ††p < 0.01; †††p < 0.001)