To identify genes expressed specifically in the female germline whose promoters could be used to drive the expression of toxins, we filtered the developmental transcriptome to identify genes expressed only in the ovary and early embryo (RPKM = 0 in other samples), with the embryonic expression trending only downward following fertilization.
Bioinformatics analysis shows that while tissue-specific genes often bind silencing-associated factors in embryonic and cultured cells, this trend is less prominent for the X-linked genes.
The research was published by Kenneth De Baets, Christian Klug, Dieter Korn, and Neil H. Landmann, "Early evolutionary trends in ammonoid embryonic development", in Evolution, International Journal of Organic Evolution, 14 February , 2012 doi 10.1111/j.1558-5646.2011.01567.x.
To verify if the modifications specific to H are due to the distinct biology of stem cells, we repeated our analysis in H9 human embryonic stem cells and observed trends resembling H.
This trend was observed from embryonic stages through postnatal day1, with highest difference in FGF-2 protein levels occurring in E17.5 FOb cells.
Just as voters can tailor their media diet to avoid unwanted opinions they can now calibrate their friendships to avoid those with the wrong opinions.Yet fortunately, these trends are all still embryonic.
If that trend plays out in the embryonic VR market something like The Void's Ghostbusters experience in NYC might end up being the last time folks get a chance to chase spooks around a haunted house in VR.
Expression patterns of the differentially expressed transcripts during embryonic development (n = 18) followed the same general trend when estimated by qPCR, with a few exceptions.
In recent years, scientists have increasingly turned to a form of stem cell that can be derived without killing or harming embryos, a trend that was probably accelerated by the litigation over embryonic stem cells, but they will still need the embryonic cells for many purposes.
In line with the dedifferentiated characteristics of cancer cells, a trend toward shortened 3′UTRs was identified in early mouse embryonic stem cells (12), and reprogramming of somatic to induced pluripotent stem cells involves general shortening of 3′UTRs (13).
