FB2026_02 , released June 18, 2026
Recombinant Construct: P{Gr32a-GAL4.3.7.PW}
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General Information
Symbol
P{Gr32a-GAL4.3.7.PW}
FlyBase ID
FBtp0057246
Feature type
transgenic_transposable_element
Component Allele(s)
Scer\GAL4Gr32a.3.7.PW
Also Known As
Gr32a-GAL4, Gr32a
Size
Expression Data
GAL4 reporter/driver
Associated insertion(s)
2 available
Molecular map
Description and Uses
Construct components
Component allele Scer\GAL4Gr32a.3.7.PW
Transgenic product class
Component
Use(s)
Regulatory region(s)
Gr32a
Encoded product / tool
GAL4
Description

A 3.7kb Gr32a promoter fragment is fused upstream of sequence encoding a GAL4 driver.

(Weiss et al., 2011)
Sequence Data
Sequence (FB)
Associated Sequence Data
DDBJ / EMBL / GenBank
DNA Sequence
Extent
Segments and Size
Total Size
Left end
Right end
 
Segments
Num
Orientation
Symbol
Reference
Phenotypic Data
Expression Data
Reporter Expression
distribution deduced from reporter (Gal4 UAS)
Stage
Tissue/Position (including subcellular localization)
Reference
third instar larval stage
gustatory receptor neuron of terminal organ
(Kwon et al., 2011)
gustatory receptor neuron of terminal organ dorsolateral group
(Kwon et al., 2011)
larval gustatory receptor neuron of the dorsal pharyngeal sense organ
(Kwon et al., 2011)
larval gustatory receptor neuron of the posterior pharyngeal sense organ
(Kwon et al., 2011)
larval gnathal ganglion
(Kwon et al., 2011)
larval dorsal pharyngeal gustatory receptor neuron DP1
(Choi et al., 2016)
larval dorsal pharyngeal gustatory receptor neuron DP2
(Choi et al., 2016)
larval posterior pharyngeal gustatory receptor neuron PP1
(Choi et al., 2016)
larval posterior pharyngeal gustatory receptor neuron PP2
(Choi et al., 2016)
larval posterior pharyngeal gustatory receptor neuron PP3
(Choi et al., 2016)
adult stage
high salt/bitter-sensing neuron | subset of prothoracic tarsal segment 5
(Ling et al., 2014)
high salt/bitter-sensing neuron | subset of prothoracic tarsal segment 4
(Ling et al., 2014)
high salt/bitter-sensing neuron | subset of mesothoracic tarsal segment 5
(Ling et al., 2014)
high salt/bitter-sensing neuron | subset of mesothoracic tarsal segment 4
(Ling et al., 2014)
high salt/bitter-sensing neuron | subset of metathoracic tarsal segment 5
(Ling et al., 2014)
high salt/bitter-sensing neuron | subset of metathoracic tarsal segment 4
(Ling et al., 2014)
gustatory receptor neuron | subset of short labellar taste bristle | subset
(Weiss et al., 2011)
gustatory receptor neuron | subset of intermediate labellar taste bristle | subset
(Weiss et al., 2011)
high salt/bitter-sensing neuron of adult labellum sensillum
(Weiss et al., 2011)
intermediate labellar taste bristle I-a
(Weiss et al., 2011, Weiss et al., 2011)
intermediate labellar taste bristle
(Weiss et al., 2011, Weiss et al., 2011)
intermediate labellar taste bristle I-b
(Weiss et al., 2011, Weiss et al., 2011)
short labellar taste bristle S-b
(Weiss et al., 2011, Weiss et al., 2011)
short labellar taste bristle S-a | intense
(Weiss et al., 2011)
high salt/bitter-sensing neuron | subset of adult prothoracic segment
(Clowney et al., 2015)
adult abdominal multidendritic neuron | subset
(Park and Kwon, 2011)
short labellar taste bristle S-a
(Weiss et al., 2011, Weiss et al., 2011)
bitter-sensing neuron | subset
(Israel et al., 2022)
adult stage | male
male-specific neuron | subset
(Park and Kwon, 2011)
adult stage | female
female-specific neuron | subset
(Park and Kwon, 2011)
Additional Information
Statement
Reference

Drives expression in a subset of bitter-sensing neurons.

(FlyBase Curators, 2017)

ScerGAL4Gr32a.3.7.PW drives expression in the following series of neurons. Larval gustatory receptor neuron of the epiphysis DP1, where it is coexpressed with ScerGAL4Gr33a.4.7, ScerGAL4Gr66a.1.8, ScerGAL4Gr93a.5, ScerGAL4Gr22b.5.8, ScerGAL4Gr39a.a.3.4, ScerGAL4Gr39b.4.4, ScerGAL4Gr9a.6.3, ScerGAL4Gr22d.3.1, ScerGAL4Gr22e.2.5, ScerGAL4Gr28b.a.3, ScerGAL4Gr39a.b.1, ScerGAL4Gr58b.1, and ScerGAL4Gr59d.4.1. Larval gustatory receptor neuron of the epiphysis DP2 where it is coexpressed with ScerGAL4Gr33a.4.7, ScerGAL4Gr66a.1.8, ScerGAL4Gr77a.4 and ScerGAL4Gr93b.5.3. Larval gustatory receptor neuron of the hypopharyngeal organ PP1 and PP2 where it is coexpressed with ScerGAL4Gr33a.4.7, ScerGAL4Gr66a.1.8, ScerGAL4Gr22b.5.8, ScerGAL4Gr39a.a.3.4, ScerGAL4Gr39b.4.4, ScerGAL4Gr39a.d.1.7, ScerGAL4Gr93c.3.8 and ScerGAL4Gr93d.2.4. Larval gustatory receptor neuron of the hypopharyngeal organ PP3 where it is coexpressed with ScerGAL4Gr33a.4.7, ScerGAL4Gr66a.1.8, ScerGAL4Gr28a.PT, ScerGAL4Gr22b.5.8, ScerGAL4Gr39a.a.3.4, ScerGAL4Gr39b.4.4, ScerGAL4Gr39a.d.1.7, ScerGAL4Gr93c.3.8 and ScerGAL4Gr93d.2.4.

(Choi et al., 2016)

ScerGAL4Gr32a.3.7.PW drives expression in adult abdominal multidendritic neurons with with dorsal processes extending along the left-right axis, as well as in multidendritic neurons with lateral processes extending anteroposteriorly; these major processes have several protruding dendrites. Expression is also observed in projections to the abdominal ganglion. ScerGAL4Gr32a.3.7.PW also drives expression in neurons innervating the male reproductive organs, mostly innervating the accessory gland; and in neurons innervating the female reproductive organs, mostly innervating the common oviduct, lateral oviducts, or ovaries.

(Park and Kwon, 2011)

ScerGAL4Gr32a.3.7.PW is expressed in the gustatory neurons of all of the bitter-sensitive short labellar taste bristles, and the gustatory neurons of all of the intermediate labellar taste bristles.

(Weiss et al., 2011)

ScerGAL4Gr32a.3.7.PW is expressed in all of the short and intermediate bitter-sensitive sensilla of the labellum.

(Weiss et al., 2011, Weiss et al., 2011)

ScerGAL4Gr32a.3.7.PW drives expression in two gustatory receptor neurons of the larval terminal organ, one of these having its cell body in the dorsal organ ganglion (TO-dorsolateral group). The neuron of the TO-dorsolateral group also expresses ScerGAL4Gr33a.4.7, ScerGAL4Gr66a.1.8 and ScerGAL4Gr10a.3.7. The other terminal organ neuron co-expresses ScerGAL4Gr33a.4.7, ScerGAL4Gr66a.1.8, ScerGAL4Gr28b.e.4.245, ScerGAL4Gr39a.a.3.4, ScerGAL4Gr39a.b.1, ScerGAL4Gr59d.4.1, ScerGAL4Gr9a.6.3, ScerGAL4Gr22e.2.5, ScerGAL4Gr22a.4.2, ScerGAL4Gr28b.a.3, ScerGAL4Gr36b.0.9, ScerGAL4Gr36c.2.5, ScerGAL4Gr58b.1, ScerGAL4Gr59a.1.5, ScerGAL4Gr59c.5.5 and ScerGAL4Gr93b.5.3. Expression of ScerGAL4Gr32a.3.7.PW is also found in two neurons of the dorsal pharyngeal sense organ (DPS or epiphysis) and in two neurons of the posterior pharyngeal sense organ (PPS or hypopharyngeal sense organ).

(Kwon et al., 2011)
 
Marker for
bitter-sensing neuron
(Israel et al., 2022)
Reflects expression of
Gr32a
(Israel et al., 2022, Clowney et al., 2015, Ling et al., 2014, Kwon et al., 2011, Park and Kwon, 2011, Weiss et al., 2011, Weiss et al., 2011)
Reporter construct used in assay
Progenitors and Descendants
progenitor(s)
descendant(s)
Comments
Stocks (1)
Stocks containing insertion(s) of this recombinant construct
Bloomington
57622
w*; wgSp-1/CyO; P{Gr32a-GAL4.3.7.PW}1L
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (5)
References (23)