Correction for Fraser, Detecting selection with a genetic cross

EVOLUTION Correction for “Detecting selection with a genetic cross,” by Hunter B. Fraser, which was first published August 26, 2020; 10.1073/pnas.2014277117 (Proc. Natl. Acad. Sci. U.S.A. 117, 22323–22330).

The author notes that Eq. $\mathbf{2}$ appeared incorrectly due to a typographical error. The corrected equation appears below.

$$v=\frac{{\sigma }_{par}^2-\hspace{0.17em}\frac{{\sigma }_{p1}^2}{4n_{p1}}-\hspace{0.17em}\frac{{\sigma }_{p2}^2}{4n_{p2}}}{{\sigma }_{F2}^2{\text{H}}^{2}c}$$