Oops 090529

Oops 090529

43. J. Charite, Cell 8, 589 (1994)

Impossible to find this reference at either PubMed of Cell‘s sites.

Oops 090523

Oops 090523
It’s being a long time since the last Oops!

In mammals, there are four clusters named Hoxa, Hoxb, Hoxc, Hoxd corresponding to up to 13 groups of genes, instead of the unique cluster of 8 genes of the fly.

Well, that’s always two Hox cluster of Drosophila, and the new Oops! is for that “13 groups of genes“.

the WTF factor

Somethings^{addendum below} really wrong here.

French speaking people may follow the discussion here and there, hoping for a focused reply.

housekeeping

I’m sorry for the delay to complete the 2.2 section presentation. It’s a boring task I promised to carry out and the accumulation of errors induce headaches 🙂

I’ll carry it out, but it will take some time.

antp-C and bx-C complexes genes’ expression domains

credit: G. Furelaud – Source: Drosobox 1.3 – CC-by-nc-nd

Hat tip to GF who produced the gif during his high-school studies.

The invertebrate morphogenesis

The invertebrate morphogenesis

The second section of Fleury’s paper is about The invertebrate morphogenesis and the example chosen is Drosophila the fly, which is the most studied of the invertebrates but far from describing the “invertabrates” morphogenesis in general, just take a look at a sponge. Two subsections, The fly bauplan and The homeobox genes.

morphogenic gene

morphogenic gene

How one comes to qualify a gene as morphogenic? Fleury didn’t included this information in his paper, neither in the text or the glossary despite his interest on morphogenesis. I’ve chosen to illustrate the concept using bicoid as it’s one of the examples used by the author.