A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\Trhc01440

General Information
SymbolDmel\Trhc01440SpeciesD. melanogaster
NameFlyBase IDFBal0160850
Feature typealleleAssociated geneDmel\Trh
Also Known AsCG9122c01440
Map ( GBrowse ) Untitled Document detailed view FBti0040945
Allele class
MutagenpiggyBac transposase
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Description
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FB2013_03
FB2013_02
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Allele class
Mutagen
Mutations Mapped to the Genome
Type
Location
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Associated Sequence Data
DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
UniProtKB/Swiss-Prot
UniProtKB/TrEMBL
Progenitor genotype
Nature of the lesion
Statement
Reference
 
 
Caused by insertion
Cytology
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Statement
Reference
Trh[c01440] mutants exhibit an increase in neuronal arborization and varicosity number, compared to wild-type. Trh[c01440] mutant second instar larvae that are directly exposed to 10[-6]M 5-HT from 16 hours after egg laying to hatching, exhibit feeding behaviour that is indistinguishable from parental control flies, and a decrease in the complexity of serotonergic gut fibers projecting to the proventriculus. Hypersensitivity to 5-HTP is also rescued.
Larval feeding (measured by the number of mouth hook contractions in a yeast solution) is significantly affected by the decrease in neuronal 5-HT in Trh[c01440] mutants. This is unlikely to be due to aberrant motor control because body wall contractions (measured on an agar substrate) are unaffected. Heart rate in Trh[c01440] mutant white prepupae is significantly reduced relative to controls. Trh[c01440] mutants display an unusually strong aversion to the odorant nonanol, while showing a strong attraction to the odorant heptanol (as do controls). Female adult motor behaviour is significantly depressed by the decrease in neuronal 5-HT in Trh[c01440] mutants. Adult feeding behaviour is significantly decreased compared to controls, in both males and females. Embryonic survival of Trh[c01440] is enhanced relative to controls. The number of eclosing animals is decreased in Trh[c01440] mutants compared to controls, suggesting that Trh activity is critical, but no vital, during the larval and/or pupal stages. Adult survival does not require Trh activity for either female or male flies.
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Bloomington
Harvard
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hide Synonyms & Secondary IDs ( 2 )
Reported As
Symbol Synonym
Trhc01440
 
Name Synonym
Secondary FlyBase IDs
hide References ( 4 )
Research paper
Neckameyer, 2010, Dev. Neurosci. 32(3): 217--237
A trophic role for serotonin in the development of a simple feeding circuit. [FBrf0211600]
Neckameyer et al., 2007, Genes Brain Behav. 6(8): 756--769
Compartmentalization of neuronal and peripheral serotonin synthesis in Drosophila melanogaster. [FBrf0201679]
Personal communication to FlyBase
Gene Disruption Project members and Exelixis, 2005, Genomic mapping of Exelixis insertion collection. (Computer file)
Genomic mapping of Exelixis insertion collection. (Computer file) [FBrf0184340]
Bloomington Drosophila Stock Center, 2004.11.6, Exelixis insertion alleles that are not in FlyBase.
Exelixis insertion alleles that are not in FlyBase. [FBrf0179797]