spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

Right arrow Help viewing high resolution images
Right arrow Return to article
(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.


Figure 1


Fig. 1. Tribolium hunchback phenotypic series. Cuticular preparation of wild-type larvae (A,E) and hunchback-depleted larvae (B-D,F). (B) All body segments are formed but gnathal and thoracic segments are transformed to abdominal identity. The thoracic segments appear to be partially transformed, showing underdeveloped limbs (arrow). (C) Larva displaying approximately 10 segments with abdominal identity and fusion of segments (arrowhead). (D) Larva displaying the strongest phenotype. Antennae and mandible are still formed and the segments following these have abdominal identity up to the fusion point (arrowhead), after which no further segments are seen. (E,F) Comparison of the anterior region of a wild-type larva (E) and a larva with a weak phenotype (F). The latter shows a normal antenna (an) and mandibular (md) segment, while the prospective remaining segments (mx, maxilla; lb, labium; T1-T3, thoracic; A1, A2, abdominal) are transformed into segments of abdominal identity. Some leg stumps are still visible in T2 and T3, indicating that the transformation towards abdominal segments was not complete in these segments.





Right arrow Return to article