Manhattan plot (left) and quantile-quantile plot (right) of the observed <i>P</i> values for the yolk weight of first eggs (FYW).

<p>The Manhattan plot indicates the-log₁₀ (observed <i>P</i> values) for genome-wide SNPs (y-axis) plotted against their respective positions on each chromosome (x-axis), and the horizontal black and green lines depict the genome-wide significant (8.43 × 10⁻⁷) and suggestive significant (1.69 × 10⁻⁵) thresholds, respectively. For the quantile-quantile plot, the x-axis shows the expected-log₁₀-transformed <i>P</i> values, and the y-axis represents the observed-log₁₀-transformed <i>P</i> values. The genomic inflation factors (λ) are shown on the top left in the QQ plots. Green points represent the genome-wide significant associations.