Evidence map›Paper›PMID 27809764›Full record

ArticleBMC genomics2016

Cross-phenotype association tests uncover genes mediating nutrient response in Drosophila.

Christopher S Nelson, Jennifer N Beck, Kenneth A Wilson, Elijah R Pilcher, Pankaj Kapahi, Rachel B Brem

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.5field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
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  3. Standing genetic variation and chromosome differences drove rapid ecotype formation in a major malaria mosquito.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  16. TheG3 (Bethesda, Md.) · 2020
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Christopher S NelsonBuck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA.
Jennifer N BeckBuck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA.
Kenneth A WilsonBuck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA.
Elijah R PilcherBuck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA.
Pankaj KapahiBuck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA. PKapahi@buckinstitute.org.
Rachel B BremBuck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA. RBrem@buckinstitute.org.
Buck Institute for Research on Aging · USUniversity of Southern California · US

Funding

Resource Component: Acquisition, maintenance and distribution of Drosophila stocksP40OD018537 · OD · TRUSTEES OF INDIANA UNIVERSITY · PI Annette L. Parks · 2014 to 2026
$13.5M
Molecular Mechanisms of Lifespan Extension by Dietary Restriction in DrosophilaR01AG038688 · NIA · BUCK INSTITUTE FOR RESEARCH ON AGING · PI KAPAHI, PANKAJ · 2011 to 2015
$2.3M
Role of Circadian Clocks in Aging using DrosophilaR01AG045835 · NIA · BUCK INSTITUTE FOR RESEARCH ON AGING · PI KAPAHI, PANKAJ · 2013 to 2017
$2.1M
Metabolome-Genome Associations for Determining Mechanisms of Aging in DrosophilaR01AG049494 · NIA · UNIVERSITY OF WASHINGTON · PI PROMISLOW, DANIEL EDWARD · 2015 to 2019
$1.8M
GENETIC DISSECTION OF NATURAL VARIATION IN CALORIC RESTRICTION-INDUCED CELLULAR LF32AG047024 · NIA · BUCK INSTITUTE FOR RESEARCH ON AGING · PI NELSON, CHRISTOPHER S · 2014 to 2016
$164k
NIA NIH HHS F32 AG047024NIA NIH HHS R01 AG038688NIA NIH HHS R01 AG045835NIA NIH HHS R01 AG049494NIH HHS P40 OD018537
6 · The paper itself

Abstract

backgroundObesity-related diseases are major contributors to morbidity and mortality in the developed world. Molecular diagnostics and targets of therapies to combat nutritional imbalance are urgently needed in the clinic. Invertebrate animals have been a cornerstone of basic research efforts to dissect the genetics of metabolism and nutrient response. We set out to use fruit flies reared on restricted and nutrient-rich diets to identify genes associated with starvation resistance, body mass and composition, in a survey of genetic variation across the Drosophila Genetic Reference Panel (DGRP).

resultsWe measured starvation resistance, body weight and composition in DGRP lines on each of two diets and used several association mapping strategies to harness this panel of phenotypes for molecular insights. We tested DNA sequence variants for a relationship with single metabolic traits and with multiple traits at once, using a scheme for cross-phenotype association mapping; we focused our association tests on homologs of human disease genes and common polymorphisms; and we tested for gene-by-diet interactions. The results revealed gene and gene-by-diet associations between 17 variants and body mass, whole-body triglyceride and glucose content, or starvation resistance. Focused molecular experiments validated the role in body mass of an uncharacterized gene, CG43921 (which we rename heavyweight), and previously unknown functions for the diacylglycerol kinase rdgA, the huntingtin homolog htt, and the ceramide synthase schlank in nutrient-dependent body mass, starvation resistance, and lifespan.

conclusionsOur findings implicate a wealth of gene candidates in fly metabolism and nutrient response, and ascribe novel functions to htt, rdgA, hwt and schlank.

Indexed as

Genetic Association StudiesPhenotypeAnimalsDrosophilaDrosophila ProteinsEnergy MetabolismFemaleGenetic VariationGenotypeHuntingtin ProteinLongevityNutritional Physiological PhenomenaQuantitative Trait, HeritableDrosophila ProteinsHtt protein, DrosophilaHuntingtin ProteinDietary restrictionDrosophilaGWASNutritionObesity

Identifiers

PMID27809764
PMCPMC5095962
OpenAlexW2548697217

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.