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. 2002 Apr;12(4):543–554. doi: 10.1101/gr.224102

Figure 7.

Figure 7

Tissue-specific imprinting of Elongin A3. The (G/A) polymorphism was used to assess allele-specific expression in four heterozygous fetuses denoted A, B, C, and D. Chromatograms of genomic DNA (gDNA) sequence are included to show heterozygosity, as well as the homozygous maternal decidual DNA indicating parental origin. (A) Monoallelic expression of the maternal allele in lung, central nervous system (CNS), and limbs, and biallelic expression in kidney. (B) Monoallelic expression of the maternal allele in placenta and CNS, and biallelic expression in intestine. (C) Monoallelic expression of the maternal allele in CNS, biallelic expression in kidney and liver. (D) Monoallelic expression of the maternal allele in placenta, and biallelic expression in kidney and liver. Sequencing was done bidirectionally in all cases, and monoallelic expression of the maternal allele did not depend on whether that allele was A or G.