Project description:Objective: Sexually dimorphic phenotypes arise largely from sex-specific gene expression, which has mainly been characterized in sexually naïve adults. However, we expect sexual dimorphism in transcription to be dynamic and dependent on factors such as reproductive status. Mating induces many behavioral and physiological changes distinct to each sex and is therefore expected to activate regulatory changes in many sex-biased genes. Methods: Using RNA-seq we first characterized sexual dimorphism in gene expression, for the first time in Callosobruchus maculatus seed beetles. We then examined how females and males respond to mating and how it affects sex-biased expression, both in more sex-limited (abdomen) and sex-shared (head and thorax) tissues. Results: Mating responses were largely sex-specific and, as expected, females showed more numerous changes compared to males. Of the sex-biased genes present in virgins, 16% (1,041 genes) in the abdomen and 17% (243 genes) in the head and thorax altered their relative expression between the sexes. Sex-bias status changed in 2% of the genes in the abdomen and 4% in the head and thorax following mating. Mating responses involved de-feminization of females and, to a lesser extent, de-masculinization of males relative to their virgin state: mating decreased rather than increased dimorphic expression of sex-biased genes.

2016-12-23 | GSE92855 | GEO

Genome Assembly and annotation of callosobruchus maculatus (PubMed ID:31740847)

Project description:Genome Assembly and annotation of callosobruchus maculatus

| PRJEB30475 | ENA

Xiphophorus maculatus JP163 A RNA-Seq data for PacBio Genome Annotation (Nov.2017)

Project description:RNA from Xiphophorus maculatus (X. maculatus) are isolated and sequenced for annotation of enhanced X. maculatus genome

2017-11-28 | GSE107449 | GEO

The genetic ancestry of modern Indus Valley populations from Northwest India

Project description:We genotyped 45 new samples from 4 populations of Northwest India and combined it with previously published data to characterize the population structure of modern Northwest Indian populations in the context of their geographic neighbors across South Asia and West Eurasia.

2018-12-05 | GSE119653 | GEO

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