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The domesticated zebra finch (Taeniopygia guttata) is a well‐established animal model for studying vocal learning. It is also a tractable model for developmental analyses. The finch genome has been sequenced and methods for its transgenesis have been reported. Hatching and sexual maturation in this species takes only two weeks and three months, respectively. Finch colonies can be established relatively...
We have established a novel Cre mouse line, using genomic elements encompassing the Nrp2 locus, present within a bacterial artificial chromosome clone. By crossing this Cre driver line to R26R LacZ reporter mice, we have documented the temporal expression and lineage traced tissues in which Cre is expressed. Nrp2‐Cre drives expression in primitive blood cells arising from the yolk sac, venous and...
Misexpression Suppressor of Ras 4 (MESR4), a plant homeodomain (PHD) finger protein with nine zinc‐finger motifs has been implicated in various biological processes including the regulation of fat storage and innate immunity in Drosophila. However, the role of MESR4 in the context of development remains unclear. Here it is shown that MESR4 is a nuclear protein essential for embryonic development....
The Otx2 homeodomain transcription factor exerts multiple functions in specific developmental contexts, probably through the regulation of different sets of genes. Protein partners of Otx2 have been shown to modulate its activity. Therefore, the Otx2 interactome may play a key role in selecting a precise target‐gene repertoire, hence determining its function in a specific tissue. To address the nature...
The cre/loxP recombination system is a valuable tool used to generate tissue specific genomic rearrangements in mouse models. The deletion of a region of interest flanked by two loxP sites is accomplished by the recombinase (cre) enzyme, which binds to the inverted repeat segments of two loxP sites and recognition of a conserved TA sequence in the asymmetric central spacer region “ATAACTTCGTATA ‐NNNTANNN‐TATACGAAGTTAT...
Maintenance of genome integrity is crucial for the germline, and this is reflected by lower mutation rates in gametes than somatic cells. Germ cells at different stages employ different DNA damage response (DDR) mechanisms. In response to certain DNA repair defects, primordial germ cells (PGCs) either undergo apoptosis or delayed proliferation, although little is known about the underlying mechanisms...
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