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Fig. 4. zpg is required for survival of bam `stem-cell tumors'.
Ovaries from flies of the indicated genotypes were stained with anti-Vasa
(green) and the mAb 1B1 antibody (red). zpg bam /+ bam ovaries showed
the bam phenotype with many `stem cell-like' germ cells and no egg
chambers (A). zpg bam / zpg+ flies had the zpg phenotype
with few germ cells at the tip of the ovariole (B). zpg and
bam or bgcn double mutant ovaries (C,D) had a similar
phenotype to that of zpg, with only a few germ cells located at the
tip of the ovary. However, the number of germ cells at the tip was higher than
in zpg single mutants (compare panel B with panels C,D). Scale bar in
D: 50 µm for A-D.
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