gcm and gcm2 have largely overlapping expression patterns, with gcm being expressed at much higher levels than gcm2.
Salmon Elovl5a and Elovl5b have different tissue expression profiles, with Elovl5a being expressed at higher level in intestine and Elovl5b in liver [ 25].
A common phenomenon for both gene pairs is that sense and antisense genes have very different expression levels with one gene being expressed at relatively high levels and the partner gene being expressed at up to ∼40 times lower levels (Figure 2).
Absence of collinearity is clear for Clytia CheGsx and CheCdx expression (figure 3), the latter being expressed at both extremities of the planula and the former being undetectable at the same stage.
Cnidarian Hox genes have experienced a wide diversification in their expression sites, with orthologous genes being expressed at different stages during life cycle, in different germ layers, and at different locations, notably with respect to the oral-aboral axis.
Progenitor cells for digit 4 express Tbx2 and Tbx3 from early bud stage right through to the digital plate stage, with Tbx3 in particular being expressed at high levels in the Sox9-expressing condensation that will form digit 4.
This approach revealed differential expression between these duplicates with myo5aa being expressed at all developmental time points in whole zebrafish.
In contrast, expression of the ΔPEER mutant, despite being expressed at similar levels as APPΔNPTY, did not rescue activation of the Akt pathway.
Hybrid females have a general pattern of semidominance in gene expression with the majority of genes being expressed at intermediate levels compared to the two parental species.
In particular, bone morphogenetic protein (BMP) 7 showed an inverse correlation between DNA methylation and expression in human BPD samples, with BMP7 being expressed at reduced levels in BPD.
Bronchial and nasal epithelial samples clustered together based on the expression of these 59 genes, with many being expressed at higher levels in these two tissues, including genes belonging to the dynein, cytochrome P450, and aldehyde dehydrogenase gene families.
