A Database of Drosophila Genes & Genomes

FB2008_07, released August 8, 2008
 

Dmel\gypsy{}h1 Insertion

General Information
Symbol Dmel\gypsy{}h1 Species D. melanogaster
Name FlyBase ID FBti0014476
Feature type transposable_element_insertion_site Created / Updated 2000-01-06/2000-01-06
Description
Inserted element gypsy Localized function
Affected gene(s) h Expression data
Causes allele(s) h1 Viability / fertility
LINE ID Stock availability
Genomic Location
Chromosomal location 3L ( 66D10 ) Sequence location
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Chromosome (arm)
Sequence Location
Orientation
Cytological location
(computed by FlyBase)
66D10 ( near gene of known cytology )
Cytological location
(reported)
Chromosome in situ
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Flanking sequence
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Construct gypsy
Location-dependent
role
 
Size
Associated alleles
Molecular map
Transposon class
Element type
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Insertion within gene
Insertion may
affect gene
Orientation
(relative to gene)
Gene
Orientation
References
 
 
 
hide Alleles and Phenotypes
Causes alleles
Lethality
References
Sterility
References
hide Phenotype Manifest In
scutellum & macrochaeta
haltere & macrochaeta
head capsule & macrochaeta
macrochaeta | ectopic
larval abdominal segment 4
adult abdominal segment 4
wing sensillum | ectopic
wing vein L2 & macrochaeta & adult
microchaeta & mesothoracic tergum | supernumerary
microchaeta | ectopic & scutellum
medial triple row
wing margin bristle
wing hair & wing vein L2
dorsal triple row
chemosensory ventral triple row
wing & neuron & glial cell
neuron | ectopic
glial cell | ectopic
wing vein
wing vein | ectopic
wing vein & wing sensillum | ectopic | somatic clone
adult thorax & microchaeta | ectopic | somatic clone
mesothoracic tergum & macrochaeta | ectopic | conditional cs
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Statement
Reference
Df(1)ase-1; h1 double mutants have four-fold fewer bristles in the L2 vein than h1 mutants alone. Although h1 has no effect on the anterior wing margin bristles itself, the recurved bristles of Df(1)ase-1; h1 double mutants are more wild type than those of Df(1)ase-1, though the mutant phenotype of the stout mechanosensory bristles is more extreme.
Introduction of acT52.2 construct into an ac- sc- h- background causes ectopic bristles to appear along wing vein L5.
h1 rhove-1 / h1 rhove-1 flies have ectopic bristles running between longitudinal veins.
h1/h- is viable, whereas nkdunspecified h1/h- is lethal. nkd3 h1 or nkd4 h1 clones give rise to a rough eye phenotype and loss of wing margin bristles.
The ectopic microchaetae seen on the scutellum in h1 flies are suppressed by amosTft.
pad1 h1 double mutants raised at 25oC display ectopic bristles at positions on the notum where no ectopic bristles are found in either single mutant. These new positions include dorso-central bristles closer to the thoracic midline and additional bristles between the anterior and posterior scutellars. Ectopic bristles on the double mutant are mostly located in the posterior half of the notum, while ectopic bristles tend to be found in the anterior half in pad1 single mutants.
viable
 
70% of homozygotes survive to adulthood. Homozygous adults have extra bristles. Homozygotes have minor defects in segmentation, that are apparent both in the larva and the adult; a few segments are wholly or partially deleted. The fourth abdominal segment is most frequently affected, although other segments in the head, thorax or abdomen may also be affected. The frequency and severity of the segmentation phenotype is increased in trans with other lethal h alleles. h1/h41 flies have ectopic bristles on the scutellum, halteres and head capsule.
Semilethal when heterozygous with strong h alleles.
Homozygotes display ectopic bristles on the L2 wing vein.
Extra sense organs formed on wing surface. Campaniform sensillae preferentially form on the proximal end of the L3 vein, bristles form nearer the tip, and sense organs of intermediate size form in between the bristles and campaniform sensillae. Scanning electron microscope measurements of distribution of sense organs along the wing axis suggests that h is active in metamorphosis and has a pattern of expression that is dependent upon the position in the proximal-distal axis.
Ectopic glia accompany ectopic nerves in the pupal wing, which occur mostly along the longitudinal wing veins. Ectopic glial cells are present even on those ectopic veins that have reversed polarity.
Extra neuron mutant.
Flies have ectopic bristles on the wing surface.
Homozygous clones give rise to ectopic wing vein bristles and thoracic microchaetae.
h1 animals have a higher density of notal microchaetae, however these bristles still approximately align into rows as seen in wild-type.
h1 flies raised at 18oC occasionally have ectopic bristles anterior to the anterior dorso-central bristle, while flies raised at 25oC do not show this phenotype.
When in combination with hhs.P1 the ectopic bristle phenotype is completely suppressed. The temperature sensitive period for the bristle phenotype is 6-11 hours post-pupariation. Segmentation phenotype can be rescued by hcosh and htRa, but the extra bristle phenotype cannot.
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Origin as a multiple insertion line
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