Amino acid replacement: W7term.
G6372797A
G?A
W7term | PpV-PA; W7term | PpV-PB; W7term | PpV-PC; W7term | PpV-PD
W7term
Nonsense mutation (TGG to TAG) at Trp codon.
PpVX9 germline clones exhibit nurse cell degeneration at stages 9-10 of oogenesis, although follicle cell clones do not show changes in cell number, as compared to control clones.
Eggs derived from PpVX9 germline clones have apparently normal shape and size but about half of them stop development at the preblastoderm stage, with mitotic defects and mitotic arrest: the nuclei number frequently deviates from the power basis 2; nuclear envelopes lack the LaminDm0 marker, and there are multiple unusually large nuclei. The surviving syncytial embryos frequently undergo an extra nuclear division cycle, despite of unperturbed cell cycle length and decreased nuclei number and density; there is frequent chromosome mis-segregation and chromosome bridges; aborted cytokinesis events, with the resulting nuclei not fully decondensing and undergoing nuclear fall-out in the following interphase; astral microtubules are frequently undetected or less prominent than controls, despite normal spindle assembly/disassembly; there are no defects in centrosome duplication and positioning, centromere number and nuclear envelope dynamics. Part of the surviving embryos fail to extend the germband, although there are no A-P patterning defects. Some embryos survive beyond the blastoderm stage until the end of embryogenesis, form normal cuticle, but fail to hatch.
The progeny of PpVX9 heterozygous mothers and control fathers exhibit some mortality during the embryonic, larval and Pupal stages, as compared to controls.
PpVX9 somatic clones in the wing are observed as frequently as control clones.
PpVX9, trblEP1119 has abnormal size | oogenesis phenotype
PpVX9, trblEP1119 has increased cell number | germline clone | oogenesis phenotype
PpVX9, trblEP1119 has egg chamber phenotype
PpVX9, trblEP1119 has nurse cell | oogenesis phenotype
PpVX9, trblEP1119 has nucleus | oogenesis phenotype
PpVX9 germline clonal egg chambers in trblEP1119 females display multiple defects including disorganized egg chambers and egg chambers with an increased number of nurse cells.