Fig. 2.

Synthetic hybrids have intermediate kinetic parameters or display heterosis compared to their parents during ACSH microtiter growth. The kinetic parameter averages (n = 2) of normalized values (see “Methods”) of maximum growth rate (µ, defined as (ln(OD₂) − ln(OD₁))/(T ₂ − T ₁)) and maximum OD₆₀₀ from Y73 hybrids (A, B) and Y128 (C, D) are represented. By definition the normalized value of the reference Y73 strain is 0, and values above this threshold are better than the reference. Normalized values for Y128 are represented by a dashed blue line. Synthetic hybrids generated from crosses with the haploid derivatives Y73 and Y128 are represented by red and blue dots, respectively. Previously isolated synthetic hybrids from other industrial applications are represented by black dots. The values of the non-S. cerevisiae parents are represented by colored lines according to the legend. Se: Saccharomyces eubayanus, Sk: Saccharomyces kudriavzevii, Sm: Saccharomyces mikatae, Su: Saccharomyces uvarum