Dmel\P{PZ}fru3 Insertion
| General Information | |||
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| Symbol | Dmel\P{PZ}fru3 | Species | D. melanogaster |
| Name | FlyBase ID | FBti0003599 | |
| Feature type | transposable_element_insertion_site | ||
| Description | |||
| Inserted element | P{PZ} | Expression data | |
| Affected gene(s) | Ecol\lacZ, fru | Viability / fertility | |
| Causes allele(s) | Ecol\lacZfru-3, fru3 | Stock availability | 1 publicly available |
| LINE ID | ms(3)06411 | ||
| Genomic Location | |||
| Chromosomal location | 3R ( 91A7-91B3 ) | Sequence location | |
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| FB2012_01 | |||
| FB2011_10 | |||
| All updates | Click here to see a list of all updates to this record from FB2010_08 and on. | ||
Detailed Mapping Data
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| Chromosome (arm) | |||
| Sequence Location | |||
| Orientation | |||
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Cytological location
(computed by FlyBase) |
91A7-91B3 ( near gene of known cytology )
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Cytological location
(reported) |
91B1-91B8 (in situ hybridization reported)
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Comments concerning
location |
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Sequence Data
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| Flanking sequence | |||
Inserted Element
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| Construct | P{PZ} | ||
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Location-dependent
role |
lacZ enhancer trap
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| Size | 14.545Kb | ||
| Associated alleles | |||
| Molecular map |
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Affected Gene(s)
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Insertion may
affect gene |
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Alleles and Phenotypes
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| Causes alleles | |||
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Lethality
References
viable
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Sterility
References
male semi-sterile | recessive
male sterile
male sterile | partially
male sterile | recessive
semi-fertile
semi-fertile | male
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Phenotype Manifest In
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male abdominal 5 muscle
male accessory gland
vas deferens
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Detailed Description
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Statement
Reference
fru[3] mutant males display active intermale courtship. When subjected to daily ethanol exposure, the courtship level of fru[3] males is decreased on the first exposure and then remains unchanged on subsequent exposure. the intermale courtship level
of fru[3] males is significantly lower than that of CS control males on the third exposure.
The Muscle of Lawrence fails to differentiate in 90% of fru[3] homozygous mutants, with the remaining 10% exhibiting only a vestigial muscle of Lawrence.
Flies transheterozygous for fru[ΔC] and fru[3] exhibit approximately 33% fertility compared to wild-type. They do not experience reduced viability. These flies also exhibit
reduced courting of females while displaying higher levels of intermale courtship and chaining. The muscle of Lawrence fails
to differentiate in 90% of cases, with the remaining 10% exhibiting only a vestigial muscle of Lawrence.
fru[ΔC]/fru[3] transheterozygotes exhibit a reduced number of male serotonergic neurons and improper patterning. The dorsal serotonergic
abdominal giant neurons (dSAbg) exhibits approximately 18%, and the ventral serotonergic abdominal giant neurons (vSAbg) approximately
6% of the normal complement of serotonergic neurons. At least one or the other of these clusters is absent in a significant
portion of these males; the vSAbg is undetectable in approximately 70%, whereas approximately 22% exhibit no dSAbg. In animals
lacking the vSAbg, the remaining dSAbg neurons innervate the vas deferens, accessory glands, and ejaculatory duct. Similarly,
in animals with no dSAbg, the same target organs are innervated by neurons of the vSAbg. In animals with only one cluster,
while the innervation of the vas deferens is wild-type in pattern, the innervations are less dense. Similar observations are
found for the accessory glands and ejaculatory duct. Unlike wild-type males, 90% of accessory glands are not fully innervated
and a further 5% have no innervation. This phenotype is repeated with the vas deferens. These males experience a 8.5% decrease
in fru[M]-labelled neurons compared to wild-type.
During a 6hr observation, fru[ΔC]/fru[3] males do not mate, whereas approximately 50% of fru[ΔC]/fru[3] males expressing fru[MC.Scer\UAS.cSa] do. These males are slower to initiate mating, although the duration of copulation is similar to that of wild-type males.
A small number of control flies (i.e. fru[MC.Scer\UAS.cSa]/+ ; fru[ΔC]/fru[3]) manage to mate within the same time as the \'rescued\' males, probably due to \'leakage\' of the transgene, although mating
durations are still significantly longer than those of wild-type males.
Expression of fru[MA.Scer\UAS.cSa], fru[MB.Scer\UAS.cSa], or fru[MC.Scer\UAS.cSa], under the control of Scer\GAL4[fru.16] in a fru[3]/fru[3] background does not restore male fertility. However, expression of fru[MC.Scer\UAS.cSa] in a fru[3]/fru[ΔC] background (in which fru[MA] and fru[MB], but not the fru[MC] transcript are present) increases the percentage of fertile males from 33 to 78% of wild-type levels. Extension of mating
length beyond normal duration in fru[3]/fru[3] mutants is rescued by expression of fru[MC.Scer\UAS.cSa] via Scer\GAL4[fru.16].
Expression of fru[MA.Scer\UAS.cSa] or fru[MB.Scer\UAS.cSa] under the control of Scer\GAL4[fru.16] fails to rescue fertility levels in fru[3]/fru[ΔC] mutants.
Expression of fru[MC.Scer\UAS.cSa] under the control of Scer\GAL4[fru.16] in fru[3] homozygotes and fru[3]/fru[ΔC] transheterozygotes rescues the formation of the muscle of Lawrence in the male and induces formation of muscle of Lawrence-like
features and neuromuscular junctions in the female. This also rescues formation of the dorsal serotonergic abdominal giant
neuron cluster. In some cases, the ventral serotonergic abdominal giant neuron cluster is also rescued.
Expression of either fru[MA.Scer\UAS.cSa] or fru[MB.Scer\UAS.cSa] under the control of Scer\GAL4[fru.16], in fru[3] homozygotes and fru[3]/fru[ΔC] transheterozygotes fails to rescue the formation of the muscle of Lawrence in the male and fails to induce formation of muscle
of Lawrence-like features and neuromuscular junctions in the female.
Expression of fru[MA.Scer\UAS.cSa] under the control of Scer\GAL4[fru.16] does not significantly rescue differentiation of the male serotonergic neurons in fru[ΔC]/fru[3] mutants.
Expression of fru[MB.Scer\UAS.cSa] under the control of Scer\GAL4[fru.16] in fru[ΔC]/fru[3] mutants induces differentiation of neurons in the dorsal serotonergic abdominal giant neurons, with up to five neurons (half
the wild-type number) developing per animal. Rescue in the ventral serotonergic abdominal giant neurons is not observed.
Extension of mating length beyond normal duration in fru[ΔC]/fru[3] males is rescued by targeted expression of fru[MC.Scer\UAS.cSa] via Scer\GAL4[fru.16].
Expression of Agam\fru[MC.Scer\UAS] under the control of Scer\GAL4[fru.16], in a fru[3]/fru[ΔC] background (in which fru[MA] and fru[MB], but not the fru[MC] transcript are present) increases the percentage of fertile males from 33 to 65% of wild-type levels.
Expression of Agam\fru[MC.Scer\UAS] under the control of Scer\GAL4[fru.16], in a fru[3]/fru[ΔC] background (in which fru[MA] and fru[MB], but not the fru[MC] transcript are present) rescues the formation of the muscle of Lawrence in the male.
Expression of Agam\fru[MC.Scer\UAS] under the control of Scer\GAL4[fru.16] in fru[ΔC]/fru[3] mutants induces differentiation of neurons in both male serotonergic abdominal giant neuron clusters.
Expression of Agam\fru[MC.Scer\UAS] under the control of Scer\GAL4[fru.16] is sufficient to suppress the Muscle of Lawrence(MOL)-less phenotype of fru[3] mutant males and to induce formation of a MOL-like muscle in females.
The addition of to1/to1 to fru3/+ leads to a significant reduction in courtship index. Although reduced courtship is not abolished, Mutant males are capable
of all stages of courtship, but perform less frequently. This reduction is not caused by a reduction in general activity.
The addition of the fru carrying Tp(3;Y)A81 or Tp(3;Y)L58 rescues this enhancement phenotype.
23% of fru0-1/fru3 males are fertile. Male-female courtship as measured by courtship index (CI) or wing extension index (WEI) is almost completely
abolished in fru3/fruw9, fru3/Df(3R)fruw24, fru3/fruw27 or fru3/fru4-40 males. fru3/fru4-40 males show significant male-male courtship as measured by CI. fru3/fruw9, fru3/fruw12, fru3/Df(3R)fruw24 or fru3/fru4-40 males show substantial chaining. fru3/Df(3R)fruw24, fru3/fruw27 and fru3/fru4-40 males do not produce a courtship song even though they show a small amount of wing extension.
Expression of 5-HT in serotonergic-abdominal ganglion neurons in adult males is absent.
fru1/fru3 males mated individually to a single virgin female show vigorous courtship behaviour, comparable to that of wild-type males.
High levels of abdominal bending are seen in the males that show courtship behaviour. However, the proportion of males that
mate is reduced compared to wild type; 30% of the transheterozygous males court but do not mate. The fertility of the males
(as assayed by the ability of the mated females to produce progeny) is reduced compared to wild-type males. The transheterozygous
males show longer than normal mating-initiation latencies compared to heterozygous controls. Mating duration is also longer
than normal and shows a far more scattered distribution than that of wild-type males.
The number of progeny (number of resulting pupae) obtained from a fertile mating between a fru1/fru3 male and a wild-type female are not slightly but significantly fewer compared with wild type.
An appreciable fraction of matings by fru1/fru3 males lead to subnormal quantities of sperm being transferred to the female.
Homozygous males show high levels of head-to-head interactions compared to wild-type males. Most of these would-be aggressive
actions involve bringing their heads together but not escalating the interactions into the rising-up and boxing motions that
are displayed by wild-type males. The level of head-to-head interactions shows a temporal dependency; when males are grouped
together on the day they eclose they do not show significantly higher than normal head-to-head interactions, but the frequency
of head-to-head interactions shows a marked increase beginning on day 2 and peaking on days 4-5. Mutant males aged individually
for 5-7 days and then grouped together show low levels of head-to-head interactions 1 day after being grouped together, but
show an increase in the frequency of head-to-head interactions by days 4-5. These flies (which were aged individually) show
lower levels of head-to-head interactions compared to mutant males that have been aged for essentially the same number of
days, but in the presence of other males since eclosion, indicating a social component in the phenotype. Mutant males show
some chaining behaviour. Chaining also show temporal dependence, with the frequency of chaining showing a marked increase
beginning on day 2 and peaking on days 4-5.
Males are less stimulated to court females than fru1 or fru0-1 and display less chaining behaviour than fru1 males. Some males that exhibit courtship do exhibit tapping behaviour (tapping of the female with the forelegs). No courtship
song pulse is generated, even though they perform rare and unsustained wing extensions. The anomalous wing usage exhibited
is not due to a general thoracic etiology, such as a defect in neuromuscular morphology or physiology. Homozygous and transheterozygous
males with fru4 exhibit complete behavioural sterility, failure to attempt copulation. Males, when presented with both sexes simultaneously,
will show a courtship bias toward males. Chaining behaviour exhibited by males is displayed mostly on the food surface. Courtship
song is not required for, nor is particularly correlated with, chain formation. The behaviour of fru3/fru4 males is very similar to that of either homozygote. Males lack the Muscle of Lawrence (MOL). Subnormal levels of courtship
are not related to any drop in activity or viability. Mutant females are courted by wild-type males at normal levels.
Males lack the muscle of Lawrence.
Males court indiscriminately, fail to copulate and have muscle of Lawrence defects. Males show very little wing extension
and the wing displays generate no song pulse signals (courtship specific as flight is normal). fru3/fruw12 males barely court at all but show normal locomotor activity. Mutant combination shows some male-male chaining. Early and
late steps of courtship are disrupted.
Males court males and females but fail to mate. Male specific abdominal muscle is reduced.
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Expression Data
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| Reporter Expression | |||
| Additional Information | |||
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Statement
Reference
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| Marker for | |||
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Reflects
expression of |
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External Images
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| FlyView (LinkOut) | |||
Data on Genetic Line
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| Line ID |
ms(3)06411
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| Origin as a multiple insertion line | |||
Progenitor(s) within the Genome
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Related Aberration or Balancer
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| Aberration | |||
| Balancer | |||
Stocks
( 1 )
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| Bloomington | |||
Linkouts
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Synonyms & Secondary IDs
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| Reported As | |||
| Symbol Synonym |
P{PZ}fru3
P{ry+t7.2=PZ}fru3
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| Secondary FlyBase IDs | |||
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References
( 23 )
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Recent research papers (0)
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| All research papers listed in FlyBase were published before 2010 | |||
Recent Updates
