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Fig. 4 | BMC Genomics

Fig. 4

From: Evolution of cis- and trans-regulatory divergence in the chicken genome between two contrasting breeds analyzed using three tissue types at one-day-old

Fig. 4

Sequence conservation analysis of the cis- and trans-regulatory divergence genes. a The probability density (y-axis) of variation count (x-axis) 1-kb of DNA upstream of each gene’s transcription start site. The number following the regulatory category name in the legend refers to the mean value of variation count of all genes in this category. The p-value above the legend was obtained using the Mann-Whitney U test. b The pN/pS values in cis- and trans-regulatory divergence genes. The y-axis refers to the mean value of all genes in the category. Significance of the difference between the two regulatory categories is labeled above the bar (* p < 0.05, t-test; ** p < 0.01, t-test)

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