BIO411-2011-08-Drosophila

BIO411-2011-08-Drosophila - Axis Specification in...

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Axis Specification in Drosophila I Bio 411 2010
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Life cycle of Drosophila early oogenesis mid oogenesis newly laid egg syncytial bastoderm cellular bastoderm extended germband late stage embryo
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Early development Initial stages of cleavage and axis specification occur in a syncytial blastoderm with synchronous mitoses QuickTimeª and a H.264 decompressor are needed to see this picture.
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Early development Cellularization of blastoderm occurs by ~4 hpf during cleavage cycle 14 QuickTimeª and a Photo - JPEG decompressor are needed to see this picture. QuickTimeª and a Photo - JPEG decompressor are needed to see this picture.
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Blastoderm fate map and initiation of gastulation transverse section lateral view germ cells dorsal ventral anterior p o s t e r i gastrulation initiated by invagination of ventral blastoderm QuickTimeª and a Sorenson Video 3 decompressor are needed to see this picture. QuickTimeª Planar RGB d are needed to s
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Gastrulation movements ventral furrow formation germ band extension and retraction organogenesis, segmentation, imaginal disc segregation when germ band extended gastrulation movements occur during ~20 min
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Gastrulation movements ventral dorsal lateral
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Larval and adult development 1st instar larva: cuticle prep showing normal denticle belts containing rows of bristles (setae) adult larva pupa
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Forward genetic screens for embryonic patterning mutants wt mutant 1. mutagenize adults with chemical mutagen or ionizing radiation 2.
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This note was uploaded on 01/24/2012 for the course BIOL 411 taught by Professor Staff during the Fall '08 term at University of Washington.

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BIO411-2011-08-Drosophila - Axis Specification in...

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