Fig. 6. Ca2+ sensitivity (pCa50) as a function of the sum of the relative abundance of two troponin transcripts, troponin T (TnT) 261 and TnT 267 (see Table 1). Open symbols represent individuals from Ten Acre Pond and filled symbols represent individuals from Mothersbaugh Pond. Circles represent the early-emerging morph; squares represent the late-emerging morph. The point at the far left side of the plot was excluded from the statistical analysis and the curve fit because it does not conform to either linear or curvilinear models. It does, however, support the association between low levels of particular TnT transcripts and low Ca2+ sensitivity.
