Extended Data Fig. 2: Colouration of culture medium by growth of Pd-1 and Pd-2.
From: Two distinct host-specialized fungal species cause white-nose disease in bats
Left: Difference in colour (darkness) of culture medium after 7 weeks using pixel density as a proxy. Photos were taken of 45 and 34 isolates of Pd-1 and Pd-2 respectively and analysed in R (see section ‘Analysis of culture darkness’ in the Methods and Table S8). To calculate the difference, the median pixel density at 8 weeks was subtracted from the pixel density at 1 week whereby a positive value indicates an increase in darkness. The black line indicates the median, while the lower and upper hinges represent the first and third quartiles, respectively. The whiskers extend to 1.5 times the interquartile range. Right: Examples of analysed photos (original) for Pd-1 and Pd-2. Clades Pd-1 and Pd-2 differ significantly in terms of colouration of the agar medium (Week 1 – Week 8; two-sided t-test: t = −11.58, df = 60.06, p < 0.001).
