A standout among his peers for an inclusive, inspirational attitude in addition to exceptional athletic ability, Kyle's positive presence created a deep, wide imprint at an early age.
In this regard a recent study using a computational method for predicting the genome-wide imprinting status of human genes was recently reported [20] and this identified an imprinting effect between two genes, RBP5 and ABCC9, on 12p13 and 12p12 respectively, the precise region of the ST8SIA1 gene.
We found very few genes differentially expressed between XYPXM and XYMXP females, consistent with other studies that found little evidence for genome-wide imprinting in Drosophila females (Coolon et al. 2012; Wittkopp et al. 2006), and we observed a significant negative correlation between imprinting effects on these few genes in males and females.
However, we only know of a single genome-wide examination of imprinting in ADHD reported in 2012, with suggested parent-of-origin effects (not reaching genome-wide significance) in FAS and PDLIM1 genes [ 37].
Different studies used different mouse strains, testing imprinting status in different tissues and developmental time points, and none of the studies published to date has employed a truly transcriptome-wide screen for imprinting.
The soma-wide nature of imprinting also makes this signal useful to consider as a potential biomarker of breast cancer.
This reinforces the soma-wide nature of imprinting as blood cell type composition alters with age [ 34] which subsequently can influence methylation levels.
During 2011, several genome-wide investigations of imprinting using RNA-seq approaches in A. thaliana, maize, and rice were published (Gehring et al. 2011; Hsieh et al. 2011; Luo et al. 2011; Waters et al. 2011; Wolff et al. 2011; Zhang et al. 2011).
The overall process of meiosis includes a number of additional key complex genetic events; including the repair of double stand DNA damage [ 94] and the erasure of imprinting via genome wide demeythylation [ 95], a situation that persist in CIS cells [ 96].
* p < 0.1, ** p < 0.05, *** p < 0.001 (χ2 or Wilcoxon test for comparison of the respective imprinted group to autosomal data) Compared to genome-wide data, human imprinted genes show less identity with their most recent paralogs on protein level (p < 0.06, Table 3).
