Original paper
Insights into bird wing evolution and digit specification from polarizing region fate maps
Abstract
The proposal that birds descended from theropod dinosaurs with digits 2, 3 and 4 was recently given support by short-term fate maps, suggesting that the chick wing polarizing region—a group that Sonic hedgehog-expressing cells—gives rise to digit 4. Here we show using long-term fate maps that Green fluorescent protein-expressing chick wing polarizing region grafts contribute only to soft tissues along the posterior margin of digit 4, supporting...
Paper Details
Title
Insights into bird wing evolution and digit specification from polarizing region fate maps
Published Date
Aug 9, 2011
Journal
Volume
2
Issue
1
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Notes
History