Tuesday, June 11, 2013

Bark Anole Embryos - Days 1-7

We just got in a nice shipment of live eggs, frozen eggs and adult Bark anoles from Rich Glor's lab in Rochester NY. Thanks to Anthony Geneva for preparing the shipment of Bark Anoles, or Anolis distichus, eggs. The embryos were ethically taken and range in age from Days 1-8.

Bark anole egg
Bark anole egg with the eye visible

Yolk and embryo

6 day old bark anole embryo

8 day old bark anole embryo. Head and eye.

7 day old bark anole eye, limbs and tail

8 day old bark anole embryo. Top view of the mesencephalon (future brain lobes)

 6 day old bark anole embryo

8 day old bark anole embryo

8 day old bark anole embyro. Dorsal view of the embryo
8 day old Bark anole eye
 3 day old bark anole embryo
2 day old bark anole embryo
 3 day old bark anole embryo
 3 day old bark anole embryo

 8 day old bark anole embryo. Ventral view of the forehead and eyes

 8 day old bark anole embryo

 8 day old bark anole embryo

 8 day old bark anole embryo

 8 day old bark anole embryo

 8 day old bark anole embryo

 8 day old bark anole embryo

 7 day old bark anole embryo

7 day old bark anole embryo

All embryos were treated ethically.




  


Attribution-ShareAlike CC BY-SA
This license lets others remix, tweak, and build upon your work even for commercial purposes, as long as they credit you and license their new creations under the identical terms. This license is often compared to “copyleft” free and open source software licenses. All new works based on yours will carry the same license, so any derivatives will also allow commercial use.



2 comments:

  1. Somehow the lowest '7'-day old embryo's look much more developped then the 8 day embryo's.. They look more like 7 day fetusses.
    I love these pictures. I will use your blog in the next version of my devellopment- class

    grtz

    ReplyDelete
  2. You are right about that. One outlier embryo was far more developed than the other same day embryos. I've found the development is quite variable among the embryos, even when temperature and other environmental conditions are the same. I'm not sure if this variability is more accentuated in reptile embryos than mammalian ones, but this inherent variability is why developmental staging series are difficult to make and use.

    ReplyDelete