FlyBase Recombinant Construct Report: P{Gr66a-GAL4.1.8}

ScerGAL4^Gr66a.1.8 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. Additionally, expression is driven in laterally localized multidendritic neurons with extensive arborization. Expression is also observed in projections to the abdominal ganglion.

(Park and Kwon, 2011)

ScerGAL4^Gr66a.1.8 is expressed in gustatory neurons of the bitter-sensitive short labellar taste bristles, and in gustatory neurons of all of the intermediate labellar taste bristles.

(Weiss et al., 2011)

ScerGAL4^Gr66a.1.8 is strongly expressed in almost all of the short and intermediate taste sensilla of the labellum.

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

ScerGAL4^Gr66a.1.8 drives expression in 6 gustatory receptor neurons of the larval terminal organ, two of these having its cell body in the dorsal organ ganglion (TO-dorsolateral group). All 6 neurons co-express ScerGAL4^Gr33a.4.7. One of the neurons of the TO-dorsolateral group also expresses ScerGAL4^Gr10a.3.7 and ScerGAL4^Gr32a.3.7.PW. The other terminal organ neurons express different combinations of drivers. The first neuron expresses ScerGAL4^Gr32a.3.7.PW, ScerGAL4^{Gr28b.e.4.245}, ScerGAL4^Gr39a.a.3.4, ScerGAL4^Gr39a.b.1, ScerGAL4^Gr59d.4.1, ScerGAL4^Gr9a.6.3, ScerGAL4^Gr22e.2.5, ScerGAL4^Gr22a.4.2, ScerGAL4^Gr28b.a.3, ScerGAL4^Gr36b.0.9, ScerGAL4^Gr36c.2.5, ScerGAL4^Gr58b.1, ScerGAL4^Gr59a.1.5, ScerGAL4^Gr59c.5.5 and ScerGAL4^Gr93b.5.3. The second neuron co-expresses ScerGAL4^Gr39a.a.3.4, ScerGAL4^Gr57a.6, ScerGAL4^Gr59d.4.1, ScerGAL4^Gr47b.2 and ScerGAL4^Gr94a.3.7. The third neuron co-expresses ScerGAL4^Gr57a.6 and ScerGAL4^Gr97a.1. The fourth neuron expresses ScerGAL4^Gr39a.b.1 and ScerGAL4^Gr59d.4.1. Expression of ScerGAL4^Gr66a.1.8 is also found in two neurons of the dorsal pharyngeal sense organ (DPS or epiphysis), two neurons of the posterior pharyngeal sense organ (PPS or hypopharyngeal sense organ) and in two neurons of the ventral pharyngeal sense organ (VPS or hypophysis).

(Kwon et al., 2011)

Marker for

bitter-sensing neuron

(Israel et al., 2022)

Reflects expression of

Gr66a

(Israel et al., 2022, 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

57670

w^*; wg^Sp-1/CyO; P{Gr66a-GAL4.1.8}1/TM3, Sb¹

External Crossreferences and Linkouts ( 0 )

Synonyms and Secondary IDs (6)

Reported As

Symbol Synonym

GR66a-Gal4

(Hückesfeld et al., 2016)

Gr66a

(Israel et al., 2022, Shankar et al., 2015)

Gr66a-GAL

(Tadres et al., 2025)

Gr66a-GAL4

(Luo et al., 2024, Pandey et al., 2024, Wu et al., 2019, Delventhal et al., 2017, Joseph et al., 2017, Choi et al., 2016, Delventhal and Carlson, 2016, Ling et al., 2014, Kwon et al., 2011, Weiss et al., 2011)

Gr66a-Gal4

(Savaş et al., 2026, Mi et al., 2023, Trisal et al., 2022, Li and Montell, 2021, Mi et al., 2021, Yu et al., 2021, Dweck and Carlson, 2020, Li et al., 2020, Rass et al., 2019, Zhou et al., 2019, Kendroud et al., 2018, Mohammad et al., 2017, Linford et al., 2015, Kwon et al., 2014, Park and Kwon, 2011)

P{Gr66a-GAL4.1.8}

(FlyBase, 1992-)

Secondary FlyBase IDs

References (34)

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