Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5922
pubmed:dateCreated
2009-3-27
pubmed:abstractText
Temperature affects the physiology, behavior, and evolution of organisms. We conducted mutagenesis and screens for mutants with altered temperature preference in Drosophila melanogaster and identified a cryophilic (cold-seeking) mutant, named atsugari (atu). Reduced expression of the Drosophila ortholog of dystroglycan (DmDG) induced tolerance to cold as well as preference for the low temperature. A sustained increase in mitochondrial oxidative metabolism caused by the reduced expression of DmDG accounted for the cryophilic phenotype of the atu mutant. Although most ectothermic animals do not use metabolically produced heat to regulate body temperature, our results indicate that their thermoregulatory behavior is closely linked to rates of mitochondrial oxidative metabolism and that a mutation in a single gene can induce a sustained change in energy homeostasis and the thermal responses.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1095-9203
pubmed:author
pubmed:issnType
Electronic
pubmed:day
27
pubmed:volume
323
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1740-3
pubmed:meshHeading
pubmed-meshheading:19325118-Adenosine Triphosphate, pubmed-meshheading:19325118-Animals, pubmed-meshheading:19325118-Animals, Genetically Modified, pubmed-meshheading:19325118-Body Temperature Regulation, pubmed-meshheading:19325118-Calcium, pubmed-meshheading:19325118-Cold Temperature, pubmed-meshheading:19325118-Drosophila Proteins, pubmed-meshheading:19325118-Drosophila melanogaster, pubmed-meshheading:19325118-Dystroglycans, pubmed-meshheading:19325118-Energy Metabolism, pubmed-meshheading:19325118-Homeostasis, pubmed-meshheading:19325118-Mitochondria, pubmed-meshheading:19325118-Mutant Proteins, pubmed-meshheading:19325118-Mutation, pubmed-meshheading:19325118-Oxygen Consumption, pubmed-meshheading:19325118-Phenotype, pubmed-meshheading:19325118-Pyruvate Dehydrogenase Complex, pubmed-meshheading:19325118-Temperature
pubmed:year
2009
pubmed:articleTitle
Changes in temperature preferences and energy homeostasis in dystroglycan mutants.
pubmed:affiliation
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't