April 29, 2013?.

Presentasjon om: "April 29, 2013?."— Utskrift av presentasjonen:

1 April 29, 2013?

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5 Convergent extension

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7 Triploblastic

8 Sea Urchin ~1000 cells

9 Sea Urchin

10 Sea Urchin Vade mecum …Movies

11 Sea Urchin

12 Sea Urchin Primary mesenchyme is also called skeletogenic mesenchyme

13 Sea Urchin Receptors?

14 Sea Urchin Vade mecum …Movies

15 Sea Urchin

16 Sea Urchin – first stage of archenteron formation

17 Sea Urchin ~1000 cells

18 Sea Urchin – second stage of archenteron formation
Convergent extension

19 Sea Urchin – third stage of archenteron formation

20 Sea Urchin BMP-2/ BMP-4 Nodal

21 Sea Urchin ~1000 cells

22 Sea Urchin

23 Sea Urchin

24 Sea Urchin

25 Sea Urchin Skeletogenic micromeres: Beta Catenin
(only autonomous cells)

26 Figure 8.12(1) The Role of b-catenin in Specifying the Vegetal Cells of the Sea Urchin Embryo
Figures\Chapter08\DevBio7e08121.jpg

27 Disheveled expression in early Sea Urchin Embryos
(maternal, autonomous) Figures\Chapter08\DevBio7e08080.jpg

28 Figure 8.12(2) The Role of b-catenin in Specifying the Vegetal Cells of the Sea Urchin Embryo
LiCl treatment (probably block of GSK-3 activ.) Figures\Chapter08\DevBio7e08122.jpg

29 Figure 8.12(3) The Role of b-catenin in Specifying the Vegetal Cells of the Sea Urchin Embryo
Figures\Chapter08\DevBio7e08123.jpg

30 Figure 8.13 The Micromere Regulatory Network Proposed by Davidson and Colleagues (2002)
Figures\Chapter08\DevBio7e08130.jpg

31 Figure 8.14(1) A Model of Endoderm Specification
Figures\Chapter08\DevBio7e08141.jpg

32 Sea Urchin ~1000 cells Blastocoel Archenteron

33 Amphibian

34 Amphibian

35 Amphibian

36 Amphibian earlyZfish| http://www.youtube.com/watch?v=moL5C8SjeJU
frog: Frog gastrul/neurul: Frog Inner Gast: urchin longer:

37 Amphibian

38 Amphibian

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40 Amphibian

41 Amphibian Vade Mecum

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43 Amphibian

44 Amphibian

45 Amphibian

46 Amphibian

47 Amphibian

48 Figure 12.8(1) Movements of Cells During Secondary Neurulation in Xenopus
Figures\Chapter12\DevBio7e12081.jpg

49 Figure 12.8(2) Movements of Cells During Secondary Neurulation in Xenopus
Figures\Chapter12\DevBio7e12082.jpg

50 Amphibian

51 Amphibian