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Fig. 1. New alleles of cv-c. (A) The wing of a wild-type adult fly has
five longitudinal veins, and an anterior and posterior crossvein (ACV and
PCV). (B) A wing from a cv-c1/cv-c1 homozygous
fly. The PCV is completely absent (a small piece of vein tissue running
parallel to the fifth longitudinal vein is often observed) and the ACV is
detached from the fourth longitudinal vein. (C) A wing from a
cv-c1/cv-cM62 fly exhibiting a PCV phenotype
identical to cv-c1/cv-c1. (D) A wing in which
the UAS-RhoGAP88C-dsRNA construct has been expressed throughout the developing
wing disc using Bx-Gal4. The phenotypes produced are identical to
cv-c1 wings; the PCV is significantly reduced and the ACV
is detached from longitudinal vein 4.