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Fine Time-Course Expression Analysis of Mammalian Sex Determination in 129S1/SvImJ and C57BL/6J XX and XY mice

ABSTRACT: We analyzed the differentiation of the bipotential gonad into a testis or an ovary in 2 strains of mice - 129S1/SvImJ (129S1) and C57BL/6J (B6). Our results provide a high resolution view of the initiation and canalization of the differentiation of the gonad. It also reveals global differences in the transcriptome between 129S1 and B6 mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE41948 | GEO | 2013/06/11

SECONDARY ACCESSION(S): PRJNA178574

REPOSITORIES: GEO

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Fine Time-Course Expression Analysis of Mammalian Sex Determination in 129S1/SvImJ and C57BL/6J XX and XY mice

Project description:We analyzed the differentiation of the bipotential gonad into a testis or an ovary in 2 strains of mice - 129S1/SvImJ (129S1) and C57BL/6J (B6). Our results provide a high resolution view of the initiation and canalization of the differentiation of the gonad. It also reveals global differences in the transcriptome between 129S1 and B6 mice. Total RNA was obtained from XX and XY embryonic mouse gonads at 6 equally spaced time points between embryonic day (E) 11.0 and E12.0 from 129S1 and B6 mice. Mice were staged using tail somite numbers

2013-06-11 | E-GEOD-41948 | biostudies-arrayexpress

Strain differences in e11.5 XY gonad transcriptome suggest a mechanism for the sensitivity of C57BL/6J to sex reversal

2009-10-30 | GSE16917 | GEO

Transcription profiling of mouse strain differences in e11.5 XY gonad transcriptome suggest a mechanism for the sensitivity of C57BL/6J to sex reversal

Project description:Transcriptional profiling of individual mouse embryonic (e11.5) XY gonads comparing inbred strains that are sensitive (C57BL/6J) and resistant (129S1/SvImJ) to XY sex reversal, and their reciprocal F1 hybrids. Experiment Overall Design: Two-color Agilent microarray profiles of 20 individual pairs of e11.5 XY gonads, including 5- C57BL/6J, 5- 129S1/SvImJ, 5- (B6x129S1)F1, and 5- (129S1xB6)F1 samples. Within each strain, samples were collected from multiple litters to account for potential litter biases. All samples were processed following the same protocol.

2009-12-03 | E-GEOD-16917 | biostudies-arrayexpress

Genomic imprinting of XX spermatogonia and XX oocytes recovered from XX<-->XY chimeric testes.

Project description:We produced XX<-->XY chimeras by using embryos whose X chromosomes were tagged with EGFP (X*), making the fluorescent green female (XX*) germ cells easily distinguishable from their nonfluorescent male (XY) counterparts. Taking advantage of tagging with EGFP, the XX* "prospermatogonia" were isolated from the testes, and the status of their genomic imprinting was examined. It was shown that these XX cells underwent a paternal imprinting, despite their chromosomal constitution. As previously indicated in sex-reversal XXsxr testes, we also found a few green XX* germ cells developed as "eggs" within the seminiferous tubules of XX*<-->XY chimeric testes. These cells were indistinguishable from XX* prospermatogonia at birth but resumed oogenesis in a testicular environment. The biological nature of the "testicular eggs" was examined by recovering the eggs from chimeric testes. The testicular eggs not only formed an egg-specific structure, the zona pellucida, but also were able to fuse with sperm. The collected testicular eggs were indicated to undergo maternal imprinting, despite the testicular environment. The genomic imprinting did not always follow the environmental conditions of where the germ cells resided; rather, it was defined by the sex that was chosen by the germ cells at early embryonic stage.

| S-EPMC554793 | biostudies-literature

CBX2 is required to stabilize the testis pathway by repressing Wnt signaling

Project description:Purpose: Determine whether sex-determining genes are bivalent at the bipotential stage, poised between the testis and ovary fate, and whether H3K4me3 and H3K27me3 resolve into sex-specific patterns after sex determination, contributing to the canalization and stabilization of either the testis or ovary fate. Methods: XX and XY supporting cells of the gonad were FACS-purified before sex determination (at E10.5) and after sex determination (at E13.5), and submitted to ChIP-seq for H3K4me3, H3K27me3 and H3 as a means to normalize across cell populations. Results: We found that key sex-determining genes are bivalent at the bipotential stage. Genes that are upregulated affter sex determination are stripped of their repressive H3K27me3 mark, whereas repressed genes that promote the alternate pathway remain bivalent even after sex determination.

2019-05-07 | GSE130749 | GEO

Regulation of male germ cell cycle arrest and differentiation by DND1 is modulated by genetic background

2010-12-22 | GSE24340 | GEO

Coxsackievirus B3 (CVB3) infection of 129S1 and 129X1 (heart tissue day 6)

Project description:We infected two strains of mice, 129S1/SvImJ and 129X1/SvJ, with coxsackievirus type b3 (CVB3) at a dose of 500 pfu/g. 129S1 mice developed increased cardiopathology despite equal viral replication. We hypothesized that the increased cardiopathology might result from an ongoing pathologic host response that we could characterize by global expression profiling. Gene expression was assessed in hearts from 129S1 and 129X1 mice that were uninfected or infected for 6 days.

2013-04-01 | GSE44706 | GEO

Noise-Induced Changes in Gene Expression in the Cochleae of Mice Differing in Their Susceptibility to Noise Damage

Project description:The molecular mechanisms underlying the great differences in susceptibility to noise-induced hearing loss (NIHL) exhibited by both humans and laboratory animals are unknown. Using microarray technology, the present study demonstrates that the effects of noise overexposure on the expression of molecules likely to be important to the development of NIHL differ among inbred mice that have distinctive susceptibilities to NIHL including B6.CAST, 129X1/SvJ, and 129S1/SvImJ. The noise-exposure protocol produced, on average, a permanent loss of about 40 dB in sensitivity for auditory brainstem responses in susceptible B6.CAST mice, but no threshold elevations for the two resistant 129S1/SvImJ and 129X1/SvJ substrains. Measurements of noise-induced gene expression changes 6 h after the noise exposure revealed significant alterations in the expression levels of 48 genes in the resistant mice, while by these same criteria, there were seven differentially expressed genes in the susceptible B6.CAST mice. Differentially expressed genes in both groups of mice included subsets of transcription factors. However, only in the resistant mice was there a significant induction of proteins involved in cell-survival pathways such as HSP70, HSP40, p21, GADD45beta, Ier3, and Nf-kappaB. Moreover, increased expression of three of these factors after noise was confirmed at the protein level. Drastically enhanced HSP70, GADD45beta, and p21 immunostaining were detected 6 h after the noise exposure in subsets of cells of the lateral wall, spiral limbus, and organ of Corti as well as in cochlear nerve fibers. Upregulation of these proteins after noise exposure likely contributes to the prevalence of survival cellular pathways and thus to the resistance to NIHL that is characteristic of the 129X1/SvJ mice. Keywords: effects of noise exposure in distinct inbred mice

2008-09-01 | GSE8342 | GEO

Project description:RNA-seq in Heart of 129S1-SvImJ mice

| PRJNA791308 | ENA

Regulation of male germ cell cycle arrest and differentiation by DND1 is modulated by genetic background

Project description:Transcriptional profiling of E14.5 XY germ cells (marked with Oct4-EGFP transgene) from two strain backgrounds (C57BL/6J and 129S1/SvImJ) that differ in their susceptibility to testicular teratomas. Two condition experiment. For each sample, Oct4-EGFP+ germ cells from all XY embyos within a litter were pooled. For the C57BL/6J background, n=3 pooled biological replicates were profiled, and n=2 replicates were obtained and profiled for 129S1/SvImJ.

2010-12-22 | E-GEOD-24340 | biostudies-arrayexpress

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