(A) Embryos from torY9 homozygous females display ectopic activation of the Tor receptor as indicated by the deletion of
several abdominal segments.
For mosquitoes to be viewed as undissected whole mounts, a small cut was made in the
terminal abdominal segment and specimens were rinsed by perfusion with PBS.
Or perhaps a cuckoo bee, such as Bombus suckleyi, a type of bumblebee that sports yellow hair on its
fourth abdominal segment, as opposed to the rare B. occidentalis, which has black or white hair in the same spot?
(J) A combination of other psq alleles besides psqrum also produces embryos showing terminal defects in addition to a lack of
most abdominal segments.
Although the cuticle phenotype of embryos lacking maternal rum function (from here on referred to as rum embryos) was somewhat variable and often showed deletions of one or
more abdominal segments, all embryos completely lacked terminal structures (n = 100).
Similarly, during retrograde heart contractions hemolymph is expelled from the dorsal vessel through an excurrent opening located in the
8th abdominal segment (Figure 1A)[3].
Embryos from homozygous females carrying the tor gain - of - function mutation torY9 show expanded terminal regions at the expense of central body regions, as indicated by the deletion of
several abdominal segments (Figure 2A).
The upperside ground colour of head, thorax and abdomen is khaki, excepting the pink inner edges and median line of the tegulae, posterior margin of thorax, base of abdomen, abdominal median line and
terminal abdominal segments.
psqrum embryos lack terminal structures (A8,
abdominal segment 8; FK, Filzkörper).