9-11-09 - mesenchyme are necessary : laser ablation...

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Micromere regulatory network oral ectoderm endomesoderm secondary mesenchyme
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Sea urchin gastrulation Ingression Invagination convergent extension
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Ingression of primary mesenchyme cells
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The blatocoel is rich in ECM
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Dev Bio Toolbox: transgenics
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Primary mesenchyme cells form the larval skeleton
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1 st stage of Archenteron invagination bottle shape cells alteration to hyalin layer via chondroitin sulfate proteoglycan forms blastopore
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2 nd rd stage of archenteron invagination Convergent extension secondary
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Unformatted text preview: mesenchyme are necessary : laser ablation Bilateral symmetry in the tunicate The tunicate embryo exhibits localized pigmented cytoplasms. The yellow crescent gives rise to muscle. Fate mapping in the tunicate Bottom half Fig. 1.7 Fate map of B4.1, b4.2 cells. Note that B4.1 makes muscle & endoderm. Fate map of the tunicate embryo A4.1 makes endoderm and notochord (mesoderm) Autonomous specification in tunicates Autonomous specification continued...
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This note was uploaded on 09/29/2009 for the course BIO 349 taught by Professor Wallingford during the Spring '09 term at University of Texas.

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9-11-09 - mesenchyme are necessary : laser ablation...

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