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Fig. 4 | BMC Genomics

Fig. 4

From: Genome changes due to artificial selection in U.S. Holstein cattle

Fig. 4

Chromosome 23 had strong selection signatures identified by long-range frequency changes. a. The bovine MHC region had the largest long-range AFD between Groups I and III due to the 40 years of selection. b. The bovine MHC region also had large long-range AFD between Groups I and IIIb (the elite group) due to the 40 years of selection. c. Contemporary Holsteins (Group III) had long-range heterozygosity decreases in the MHC region relative to Holsteins unselected since 1964 (Group I). d. The elite group (Group IIIb) also had long-range heterozygosity decreases in the MHC region but had heterozygosity increases in the 28.8–31.3 Mb region with a large cluster of 297 genes

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