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Analysis of sex chromosomes effect on hybrid male sterility

ABSTRACT: Sex chromosomes and more particularely the X chromosomes are known to have a major effect on hybrid male sterility. In this experiment by making use of the reciprocal hybrids between D. simulans and D. sechellia, we are showing the effect of these chromosomes on gene expression in male hybrids Keywords: X chromosome, hybrid

ORGANISM(S): Drosophila sechellia Drosophila simulans Drosophila sechellia x Drosophila simulans Drosophila melanogaster

PROVIDER: GSE4677 | GEO | 2009/11/01

SECONDARY ACCESSION(S): PRJNA96781

REPOSITORIES: GEO

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Analysis of sex chromosomes effect on hybrid male sterility

Project description:Sex chromosomes and more particularely the X chromosomes are known to have a major effect on hybrid male sterility. In this experiment by making use of the reciprocal hybrids between D. simulans and D. sechellia, we are showing the effect of these chromosomes on gene expression in male hybrids Keywords: X chromosome, hybrid Testes from for days old individuals (D. simulans, D. sechellia, hybrid D. simulans female x D. sechellia male, hybrid D. sechellia female x D. simulans male) were dissected and RNA was extracted and hybridized along with a reference RNA from the whole body of 4 days old D. melanogaster male. Gene expression in hybrids were compared to parental gene expression in order to isolate misexpressed genes in each hybrids. In order to reveal the cross effect misexpressed genes in hybrids were compared to identify genes commonly misexpressed and genes genes misexpressed in only one hybrid.

2009-11-01 | E-GEOD-4677 | biostudies-arrayexpress

Comparison of D. simulans/D. mauritiana F1 third instar male larvae hybrid expression values to pure-species parents

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Comparison of testes gene expression of D. melanogaster species and their hybrids

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Comparison of testes gene expression of D. melanogaster species and their hybrids

Project description:Males hybrids from the crosses between species of the D. simulans clade are steriles as the females are fertiles. Hybrid male sterility is due to severe defects in spermatogenesis and phenotypic differences are observed between the different hybrids involving D. simulans, D. sechellia and D. mauritiana. In this study we are comparing gene expression in the testes of hybrids involving the female D. simulans and the males D. melanogaster, D. mauritiana, or D. sechellia to the gene expression in species testes. Keywords: Comparative genomic hybridization 4 species (D. melanogaster, D. simulans, D. sechellia, D. mauritiana) and 3 different hybrids were used in this study. RNA extracted from whole D. melanogaster males was used as a reference. Hybridizations were perfomed using RNA extraxted from a pool of 200 testes from a sample with RNA extracted from whole D. melanogaster males. At least three independent replicates per hybridizations were performed

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Comparison of D. simulans/D. sechellia F1 male hybrid genome-wide expression values to pure-species parents

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2006-09-13 | GSE5607 | GEO

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Analysis of sex chromosomes effect on hybrid male sterility

Project description:Analysis of sex chromosomes effect on hybrid male sterility

| PRJNA96781 | ENA