Temporal and spatial control of the Sycp1 gene transcription in the mouse meiosis: regulatory elements active in the male are not sufficient for expression in the female gonad.
Transcription controls active at the initial stages of meiosis are clearly key elements in the regulation of germinal differentiation. Transcription of the Sycp1 gene (synaptonemal complex protein 1) starts as early as the leptotene and zygotene stages. Constructs with Sycp1 5' upstream sequences directed the expression of reporter genes to pachytene spermatocytes in transgenic mice. A short fragment encompassing the transcription start (n.t. -54 to +102) was sufficient for stage-specific expression in the adult male and for temporal regulation during development. Upstream enhancer element(s) quantitatively regulating expression were localized in the region between -54 and -260. The gene is normally expressed both in the male and female gonads, but none of the promoter sequences active in the testis allowed the expression of reporter genes during meiosis in the ovary.
Sage
J
J
Unité INSERM 470, University of Nice, France.
Martin
L
L
Meuwissen
R
R
Heyting
C
C
Cuzin
F
F
Rassoulzadegan
M
M
D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D004268:DNA-Binding Proteins; D005260:Female; D018507:Gene Expression Regulation, Developmental; D008099:Liver / Q000196:embryology; D008156:Luciferases / Q000378:metabolism; D008297:Male; D008540:Meiosis; D051379:Mice; D008810:Mice, Inbred C57BL; D008811:Mice, Inbred DBA; D008822:Mice, Transgenic; D008957:Models, Genetic; D008969:Molecular Sequence Data; D009687:Nuclear Proteins / Q000235:genetics / Q000378:metabolism*; D010053:Ovary / Q000196:embryology; D011518:Proto-Oncogene Proteins / Q000378:metabolism; D020598:Proto-Oncogene Proteins c-myb; D051381:Rats; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012689:Sequence Homology, Nucleic Acid; D013737:Testis / Q000196:embryology; D013997:Time Factors; D014018:Tissue Distribution; D015534:Trans-Activators / Q000378:metabolism
D004268:DNA-Binding Proteins; C490283:Mybl1 protein, mouse; D009687:Nuclear Proteins; D011518:Proto-Oncogene Proteins; D020598:Proto-Oncogene Proteins c-myb; C489753:SYCP1 protein, human; C489754:Sycp1 protein, mouse; C078744:Sycp1 protein, rat; D015534:Trans-Activators; D008156:Luciferases