Insights into bird wing evolution and digit specification from polarizing region fate maps

Analysis of mutants with altered shh activity and posterior digit loss supports a biphasic model for shh function as a morphogen and mitogen

(2011) Jianjian Zhu et al.   DEVELOPMENTAL DYNAMICS

Embryological Evidence Identifies Wing Digits in Birds as Digits 1, 2, and 3

(2011) K. Tamura et al.   SCIENCE

A Basal Dinosaur from the Dawn of the Dinosaur Era in Southwestern Pangaea

(2011) R. N. Martinez et al.   SCIENCE

Distinct Sonic Hedgehog signaling dynamics specify floor plate and ventral neuronal progenitors in the vertebrate neural tube

(2010) V. Ribes et al.   GENES & DEVELOPMENT

A Jurassic ceratosaur from China helps clarify avian digital homologies

(2009) Xing Xu et al.   NATURE

A Complete Skeleton of a Late Triassic Saurischian and the Early Evolution of Dinosaurs

(2009) S. J. Nesbitt et al.   SCIENCE

Uncoupling Sonic Hedgehog Control of Pattern and Expansion of the Developing Limb Bud

(2008) Jianjian Zhu et al.   DEVELOPMENTAL CELL

Integration of growth and specification in chick wing digit-patterning

(2008) Matthew Towers et al.   NATURE

DEVELOPMENTAL BIOLOGY: Grasping Limb Patterning

(2008) C. J. Tabin et al.   SCIENCE