A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Dmel\P{lacW}domk08108 Insertion

General Information
Symbol Dmel\P{lacW}domk08108 Species D. melanogaster
Name FlyBase ID FBti0009608
Feature type transposable_element_insertion_site
Description
Inserted element P{lacW} Expression data
Affected gene(s) dom, Ecol\lacZ Viability / fertility
Causes allele(s) domk08108, Ecol\lacZdom-k08108 Stock availability 2 publicly available
LINE ID l(2)k08108
Genomic Location
Chromosomal location 2R ( 57D11 ) Sequence location 2R:17,211,119..17,211,119 [+]
Map ( GBrowse ) GBrowse View Help detailed view FBti0045518 FBti0037841 FBti0025897 FBti0046690 FBti0067207 FBti0036090 FBti0108055 FBti0025180 FBti0007740 FBti0102415 FBti0016416 FBti0104075 FBti0113220 FBti0037899 FBti0125348_2 FBti0125348_1 FBti0026308 FBti0009608 FBti0028632 FBti0049630 FBti0099889 FBti0125349
Member of Large Scale Dataset(s)
Dataset

A set of mutant stocks derived by insertional mutagenesis using the P-element construct P{lacW}; most lines have a lethal or sterile phenotype. The P{lacW} construct carries a w[+mC] mini-white visible marker, Ecol\lacZ enhancer trap sequences, and bacterial sequences that allow plasmid rescue (FBrf0049800).
Insertion lines from this collection were assessed for inclusion in the Gene Disruption Project collection.
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Description
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FB2013_03
FB2013_02
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hide Detailed Mapping Data
Chromosome (arm)
Sequence Location
2R:17,211,119..17,211,119 [+]
Orientation
Cytological location
(computed by FlyBase)
57D11 ( inferred by FlyBase from sequence location )
Cytological location
(reported)
Comments concerning
location
hide Sequence Data
Flanking sequence
hide Inserted Element
Construct P{lacW}
Location-dependent
role
lacZ enhancer trap
Size 10.691Kb
Associated alleles
Molecular map
hide Affected Gene(s)
Insertion may
affect gene
hide Alleles and Phenotypes
Causes alleles
Lethality
References
cell lethal | somatic clone
lethal | pupal stage
lethal | pupal stage | recessive
Sterility
References
female sterile | germline clone | recessive
hide Phenotype Manifest In
embryonic/larval hemocyte
embryonic/larval lymph gland
follicle stem cell | somatic clone
imaginal ring
midgut imaginal island
neuroblast
plasmatocyte
prohemocyte
hide Detailed Description
Statement
Reference
Heterozygosity for dom[k08108] increases the number of wing margin nicks seen in mam[g2.1] heterozygotes. Heterozygosity for dom[k08108] further reduces the width of N[nd-1] wings. Wing vein L4 is shortened in N[Ax-E2] mutants; heterozygosity for dom[k08108] slightly increases the length of L4.
Df(2R)ED3921 fails to suppress the melanized lymph gland and lack of hemocyte phenotype of domk08108 mutants .
domk08108 mutants exhibit melanized lymph glands and a lack of hemocytes.
domk08108 homozygous female germ-line stem cells are lost from their stem cell niche at the same rate as wild-type female germ-line stem cells. However, 91% of dom3 homozygous clone follicle stem cells are lost from their niche within 17 days, compared to only 37.5% of cells in wild-type control clones. This is not accompanied by any increase in in apoptosis of these cells.
Lethality acts in the early pupal stages. Lymph glands are black, no hemocytes and reduced neuroblast region in the larval brain. Mititic defects are not evident in the neuroblasts. Females with germline clones do not lay eggs.
Homozygous third instar larvae have a striking absence of circulating hemocytes; only 0 to 10 oversized cells are seen per larva, in contrast to the wild-type number of 1000-3000 circulating hemocytes. In addition, the number of sessile plasmatocytes is significantly reduced compared to wild-type. Homozygous larvae contain large numbers of microorganisms which can be seen on the epithelium lining the integument and on muscles. The melanisation in response to pricking with a needle is reduced in intensity compared to wild-type larvae. Melanisation plaques appear on the surface of homozygous larvae after natural infection by spores of B.bassiana, as are seen in wild-type larvae. There is not a significant difference in the survival rate between larvae pricked with a sterile needle or a needle coated with Gram-positive or Gram-negative bacteria, however, infection with fungal spores induces over 60% lethality in 48 hours in homozygous larvae.
Tl[8]/+ ; dom[k08108], cact[7] dom[k08108] or hop[Tum] ; dom[k08108] double mutant larvae contain melanotic masses, although their frequency is markedly reduced compared to Tl[8]/+, cact[7] or hop[Tum] single mutant larvae and the masses are devoid of hemocytes. dom[k08108] imd[1] and dom[k08108] Bc[1] double mutant larvae show a dramatically compromised survival after injury (whether it is a clean injury or an injury combined with infection).
Lethality occurs during third instar larval or pupal stages. Mutants exhibit visible disc abnormalities: very small or no discs. Clones cannot be induced in wild type discs. In tergites, clones with normal size and but lower than expected frequency are recovered. Clones cannot be recovered in the wing disc.
Homozygous larvae are totally devoid of circulating hemocytes. In favourable conditions these larvae have a prolonged third instar, up to 10 days at 20oC. They show melanized lymph glands. During third instar the blackening invades the whole lobe, extending to the posterior lobes. Melanized lymph glands eventually detach from the dorsal vessel. Ultrastructural analysis reveals that the prohemocytes in the hematopoetic organ are larger than wild type. Lymph glands are filled with necrotic, melanized cells and cells packed with heterogeneous inclusions indicative of strong resorptive processes. Mutant glands are devoid of differentiating prohemocytes. The embryonic hemocytes are unaffected, but by first instar hemocytes are reduced in number. Mutants are also devoid of imaginal discs, imaginal rings and histoblasts in the gut. The size of the brain is significantly reduced. The domain of brain neuroblasts in the optic lobes is reduced. Residual imaginal disc cells exist in small clusters.
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Reporter Expression
Additional Information
Statement
Reference
Marker for
Reflects
expression of
Reporter construct
used in assay
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FlyView (LinkOut)
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Line ID
Origin as a multiple insertion line
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Aberration
Balancer
hide Stocks ( 2 )
Bloomington
Kyoto
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hide Comments
Location 2R:16831196-16831197 confirmed by FlyBase alignment of dbGSS accession AQ034011 to D. melanogaster arm Release_4 and heterochromatin Release_3.2b. Insertion orientation confirmed.
hide Synonyms & Secondary IDs
Reported As
Symbol Synonym
P{lacW}l(2)k08108k08108
Secondary FlyBase IDs
  • FBti0006651
hide References ( 17 )
Research paper
Chen et al., 2008, Genome Res. 18(1): 123--136
Identification of novel modulators of mitochondrial function by a genome-wide RNAi screen in Drosophila melanogaster. [FBrf0202125]
Gause et al., 2006, Mol. Cell. Biol. 26(6): 2347--2359
Nipped-A, the Tra1/TRRAP subunit of the Drosophila SAGA and Tip60 complexes, has multiple roles in Notch signaling during wing development. [FBrf0191191]
Xi and Xie, 2005, Science 310(5753): 1487--1489
Stem cell self-renewal controlled by chromatin remodeling factors. [FBrf0190619]
Bellen et al., 2004, Genetics 167(2): 761--781
The BDGP gene disruption project: single transposon insertions associated with 40% of Drosophila genes. [FBrf0179132]
Kurucz et al., 2003, Proc. Natl. Acad. Sci. U.S.A. 100(5): 2622--2627
Hemese, a hemocyte-specific transmembrane protein, affects the cellular immune response in Drosophila. [FBrf0159287]
Ruhf et al., 2001, Development 128(8): 1429--1441
The domino gene of Drosophila encodes novel members of the SWI2/SNF2 family of DNA-dependent ATPases, which contribute to the silencing of homeotic genes. [FBrf0134570]
Spradling et al., 1999, Genetics 153(1): 135--177
The Berkeley Drosophila genome project gene disruption project. Single P-element insertions mutating 25% of vital Drosophila genes. [FBrf0111489]
Braun et al., 1998, Proc. Natl. Acad. Sci. U.S.A. 95(24): 14337--14342
Analysis of the Drosophila host defense in domino mutant larvae, which are devoid of hemocytes. [FBrf0105781]
Roch et al., 1998, Mol. Gen. Genet. 257(2): 103--112
Screening of larval/pupal P-element induced lethals on the second chromosome in Drosophila melanogaster: clonal analysis and morphology of imaginal discs. [FBrf0100624]
Braun et al., 1997, Genetics 147(2): 623--634
Drosophila immunity: analysis of larval hemocytes by P-element-mediated enhancer trap. [FBrf0098749]
Bier et al., 1989, Genes Dev. 3: 1273--1287
Searching for pattern and mutation in the Drosophila genome with a P-lacZ vector. [FBrf0049800]
Supplementary material
Ragab, 2006, Genetics 172(2):
Supplemental data. [FBrf0191785]
Personal communication to FlyBase
Gene Disruption Project members, 2001-, (Computer file)
(Computer file) [FBrf0132177]
BDGP Project Members, 1994-1999, BDGP Project Members, 1994-1999, Berkeley Drosophila Genome Project. (Computer file)
BDGP Project Members, 1994-1999, Berkeley Drosophila Genome Project. (Computer file) [FBrf0067338]
FlyBase analysis
FlyBase Curators, 2013, Members of BDGP/GDP insertion collections: P{hsneo}, P{PZ}, P{lacW}.
Members of BDGP/GDP insertion collections: P{hsneo}, P{PZ}, P{lacW}. [FBrf0220600]
FlyBase, 2005, Assessment of transgenic construct insertion sites.
Assessment of transgenic construct insertion sites. [FBrf0184339]
FlyBase, 1992-, FlyBase curation.
FlyBase curation. [FBrf0105495]