Ontology highlight
ABSTRACT:
PROVIDER: PRJNA355591 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR5093550_1.fastq.gz | Fastqsanger.gz | |||
| SRR5093550_2.fastq.gz | Fastqsanger.gz | |||
| SRR5093560_1.fastq.gz | Fastqsanger.gz | |||
| SRR5093560_2.fastq.gz | Fastqsanger.gz | |||
| SRR5093570_1.fastq.gz | Fastqsanger.gz |
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Project description:Using comparative genomics, we discovered that a previously uncharacterized gene (1700011H14RIK/C14ORF105/CCDC198) hereby named FAME (Factor Associated with Metabolism and Energy) shows an unusually high rate of evolutionary divergence in birds and mammals. By comparing SNVs, we identified gene-flow of FAME from Neandertals into modern humans. FAME knockout animals demonstrated increased body weight and decreased energy expenditure, corresponding to GWAS linking FAME with higher BMI, diabetes-related pathologies, and macular degeneration in humans. The analysis of gene expression and subcellular localization revealed that FAME is a membrane-bound protein enriched in kidneys. Although a gene knockout resulted in structurally normal kidneys, we detected higher Albumin in urine and lowered ferritin in the blood. The experiment confirmed interactions between FAME and ferritin and showed co-localization in vesicular and plasma membranes. Overall, our results show that FAME plays a role in tuning metabolite excretion and energy expenditure, partly explaining why it evolves at a high rate in birds and mammals. Here, we provide data related to identification of FAME interactome using the co-immunoprecipitation method.
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Project description:Genomes of closely-related species or populations often display localized regions of enhanced relative sequence divergence, termed genomic islands. It has been proposed that these islands arise through selective sweeps and/or barriers to gene flow. Here, we genetically dissect a genomic island that controls flower color pattern differences between two subspecies of Antirrhinum, A.m.striatum and A.m.pseudomajus, and relate it to clinal variation across a natural hybrid zone. We show that selective sweeps likely raised relative divergence at two tightly-linked MYB-like transcription factors, leading to distinct flower patterns in the two subspecies. The two patterns provide alternate floral guides and create a strong barrier to gene flow where populations come into contact. This barrier affects the selected flower color genes and tightly linked loci, but does not extend outside of this domain, allowing gene flow to lower relative divergence for the rest of the chromosome. Thus, both selective sweeps and barriers to gene flow play a role in shaping genomic islands: sweeps cause elevation in relative divergence while heterogeneous gene flow flattens the surrounding “sea”, making the island of divergence stand out. By showing how selective sweeps establish alternative adaptive phenotypes that lead to barriers to gene flow, our study sheds light on possible mechanisms leading to reproductive isolation and speciation.
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