FB2026_03 , released September 17, 2026
Insertion: Dmel\P{lwB}X81
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General Information
Symbol
Dmel\P{lwB}X81
Species
D. melanogaster
Name
FlyBase ID
FBti0002582
Feature type
transposable_element_insertion_site
Also Known As
rho-lacZ, rho-lacZX81
Description
Inserted Element
P{lwB}
LINE ID
Affected gene(s)
Ecol\lacZ, rho
Viability / fertility
Associated allele(s)
Ecol\lacZrho-X81
Stock availability
None publicly available
Genomic Location
Chromosomal Location
Sequence Location
Target / Docking site
Member of Large Scale Dataset(s)
Dataset
Description
Detailed Mapping Data
Chromosome (arm)
Sequence Location
Orientation
Cytological location (computed by FlyBase)
Cytological location (reported)
Insertion into Natural transposon
Comments concerning location
Sequence Data
Flanking sequence
Inserted Element
Construct
P{lwB}
Size (Kb)

12.486

Component Allele(s)
Ecol\lacZP\T.A92a
w+mW.hs
Molecular map
Affected Gene(s)
Phenotypic Data
Expression Data
Reporter Expression
distribution deduced from reporter
Stage
Tissue/Position (including subcellular localization)
Reference
embryonic stage
lch5 cap attachment cell
(Elstob et al., 2001)
lch5 ligament attachment cell
(Elstob et al., 2001)
larval abdominal lch5 neuron | subset
(Elstob et al., 2001)
scolopidium | subset
(Elstob et al., 2001)
C1 chordotonal organ precursor cell | subset
(Elstob et al., 2001)
embryonic stage 6 -- 7
ventral furrow
(Freeman et al., 1992)
embryonic stage 6 -- 8
embryonic head
(Freeman et al., 1992)
embryonic stage 7 -- 8
ventral midline of embryo
(Freeman et al., 1992)
embryonic stage 9 -- 11
mesectoderm
(Freeman et al., 1992)
embryonic stage 10 -- 15
embryonic central brain | subset
(Page, 2003)
embryonic foregut | anterior | ventral
(Page, 2003)
embryonic stage 10 -- 16
abdominal lateral pentascolopidial chordotonal organ lch5 | subset
(Elstob et al., 2001)
embryonic stage 11 -- 13
epidermis | segmentally repeated
(Alexandre et al., 1999)
denticle field anlage
(Alexandre et al., 1999)
embryonic stage 12 -- 13
embryonic ventral epidermis | segmentally repeated
(Freeman et al., 1992)
ventral midline of embryo | restricted
(Freeman et al., 1992)
embryonic stage 16
organism | segmentally repeated
(Sanson et al., 1999)
third instar larval stage
photoreceptor cell R5
(Freeman et al., 1992)
photoreceptor cell R8 | presumptive
(Kramer et al., 1995)
photoreceptor cell R5 | presumptive
(Kramer et al., 1995)
photoreceptor cell R2 | presumptive
(Kramer et al., 1995)
third instar larval stage -- pupal stage P7
photoreceptor cell R2
(Freeman et al., 1992)
photoreceptor cell R5
(Freeman et al., 1992)
photoreceptor cell R8
(Freeman et al., 1992)
photoreceptor cell R1 | faint
(Freeman et al., 1992)
photoreceptor cell R3 | faint
(Freeman et al., 1992)
photoreceptor cell R4 | faint
(Freeman et al., 1992)
photoreceptor cell R6 | faint
(Freeman et al., 1992)
photoreceptor cell R7 | faint
(Freeman et al., 1992)
pupal stage P6
tormogen cell of leg sensillum

Comment: 24h APF

(Peng et al., 2012)
trichogen cell of leg sensillum

Comment: 24h APF

(Peng et al., 2012)
Additional Information
Statement
Reference

EcollacZrho-X81 expresses in the most anterior lateral chordotonal organ.

(Elstob et al., 2001)

Strong EcollacZ gene expression wasobserved in R8, R2, and R5. Weak expression was seen in R1, R2, R3, R4,R6, and R7. In a ro mutant background, R2 and R5 expression is reducedor absent.

(Freeman et al., 1992)
 
Marker for
photoreceptor cell R2
(Freeman et al., 1992)
photoreceptor cell R5
(Freeman et al., 1992)
photoreceptor cell R8
(Freeman et al., 1992)
Reflects expression of
rho
(Peng et al., 2012, Page, 2003, Elstob et al., 2001, Sanson et al., 1999, Kramer et al., 1995, Freeman et al., 1992)
Reporter construct used in assay
Data on Genetic Line
Line ID
Origin as a multiple insertion line
Progenitor(s) within the Genome
Related Aberration or Balancer
Aberration
Balancer
Stocks (0)
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (18)
References (34)