Nucleotide substitution: G?A.
Amino acid replacement: W211term.
G10271550A
G?A
W220term | trk-PA
W211term
TGG to TGA; difference between reported and annotated amino acid number is due to authors using M10 as the start Met.
Embryos derived from homozygous females show deletion of posterior structures (abdominal segment 8 and Filzkorper).
Denticle belts posterior to the seventh abdominal segment and the Filzkorper are missing in trk1 mutants.
Defective in gonad assembly.
Posterior defect is significantly suppressed, in a dose-dependent manner, by Dsor1Su1.
Interacts with RpII140wimp maternal effect.
Dorsalized embryos: all cuticle cells along the dorsoventral axis behave like dorsal cells of the wild type embryo. zen expression pattern refines at stage 5, dpp pattern does not refine at all, twi and sna are expressed during late stages of embryogenesis. Differentiated embryos lack the labrum, head skeleton is reduced in size and all structures posterior to the seventh abdominal segment are deleted.
Loss of supraoesophageal ganglion and dorsal shift in the position of the suboesophageal ganglion.
Eggs derived from homozygous females cellularise normally but become abnormal at gastrulation; the cephalic furrow is shifted forward, the posterior midgut is missing and the germband forms to the posterior end of the embryo. The embryos lack anterior head structures and structures posterior to segment A7 (the labral segment and telson).
In the anterior labral and acronal derivatives are missing. Significant reduction in size of supraoesophageal ganglion. In the posterior ectodermal and endodermal structures are affected.
Homozygous females produce embryos which have deletions of the most anterior head structures (labrum and chitinous mouth plates), and the most posterior abdominal structures (posterior midgut, telson and abdominal segment A8).
embryos from homozygous mothers lack anterior-most head structures and structures posterior to the seventh abdominal segment. At gastrulation cephalic furrow is shifted toward anterior and the germband extends all the way to the posterior end. During cellularization at the blastoderm stage a funnel of yolk free cytoplasm containing a small number of nuclei (between 10 and 30) forms at the posterior pole of the embryos extending from the egg periphery to the inner yolk mass. Analysis of germ-line clones indicates that the mutation is germ-line autonomous (Schupbach and Wieschaus, 1986).
trk1 has visible | recessive | embryonic stage phenotype, suppressible by Scer\GAL4VP16.nanos.UTR/PtthUAS.Tag:HA
tor11D, trk[+]/trk1 has embryonic segment | maternal effect phenotype, enhanceable | maternal effect by cic1/cic[+]
tor11D, trk[+]/trk1 has embryonic/first instar larval cuticle | maternal effect phenotype, enhanceable | maternal effect by cic1/cic[+]
trk1 has embryonic abdominal segment 8 | maternal effect phenotype, suppressible by RafHsp83.PD
trk1 has abdominal 8 ventral denticle belt phenotype, suppressible by Scer\GAL4VP16.nanos.UTR/PtthUAS.Tag:HA
trk1 has abdominal 9 ventral denticle belt phenotype, suppressible by Scer\GAL4VP16.nanos.UTR/PtthUAS.Tag:HA
trk1 has filzkorper phenotype, suppressible by Scer\GAL4VP16.nanos.UTR/PtthUAS.Tag:HA
cic1/cic[+], tor11D, trk1 has embryonic segment | maternal effect phenotype, suppressible | maternal effect | partially by Stat92E[+]/Stat92E06346
cic1/cic[+], tor11D, trk[+]/trk1 has embryonic/first instar larval cuticle | maternal effect phenotype, suppressible | maternal effect | partially by Stat92E[+]/Stat92E06346
trk1 has embryonic abdominal segment 8 | maternal effect phenotype, non-suppressible by RafHsp83.PD
trk[+], tor[+], trk1, tor11D is an enhancer of embryonic/first instar larval cuticle phenotype of cic1
trk1 is a suppressor of embryonic segment phenotype of tsltor.PF
tor11D, trk[+]/trk1 has embryonic/first instar larval cuticle | maternal effect phenotype
tor11D, trk[+]/trk1 has abdominal segment | maternal effect phenotype
tor[+]/tor11D, trk1 has embryonic/first instar larval cuticle phenotype
tor[+]/tor11D, trk1 has abdominal segment phenotype
phlHsp83.PD partially restores abdominal segment 8 denticle belts in embryos derived from homozygous trk1 females.
phlΔN114.Hsp83 does not rescue abdominal segment 8 denticle belts in embryos derived from homozygous trk1 females.
The missing denticle belt and Filzkorper cuticle structures are partially restored in trk1 mutants by PtthScer\UAS.cMa overexpression driven by Scer\GAL4nos.UTR.T:Hsim\VP16.
Homozygous embryos exhibit terminal patterning defects, these can be fully rescued by trk+t3004.
Germline mosaic analysis shows that trk is required in the germline.