Zobrazeno 1 - 10
of 123
pro vyhledávání: '"John F Fallon"'
Publikováno v:
PLoS ONE, Vol 3, Iss 10, p e3325 (2008)
BACKGROUND:Comparative morphology identifies the digits of the wing of birds as 1,2 and 3, but they develop at embryological positions that become digits 2, 3 and 4 in other amniotes. A hypothesis to explain this is that a homeotic frame shift of dig
Externí odkaz:
https://doaj.org/article/fa941898600d4a408b886d65d24dd8ae
Autor:
Takayuki Suzuki, John F. Fallon
Publikováno v:
Developmental Dynamics. 250:1318-1329
Background Interdigits (IDs) determine digit identity in chick limbs. They are located between the digital rays and act as secondary signaling centers downstream of sonic hedgehog to provide positional information for determining digit identity in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a26144c17682bcf2eb50340dc2022d9c
https://doi.org/10.1002/dvdy.323
https://doi.org/10.1002/dvdy.323
Autor:
Marie Kmita, Yacine Kherdjemil, John F. Fallon, Takayuki Suzuki, Joseph J. Lancman, Sean M. Hasso, Marian A Ros, P Duc S Dong, Andrea Ferris
Publikováno v:
Developmental dynamics : an official publication of the American Association of Anatomists. 251(9)
[Background]: The phalanges are the final skeletal elements to form in the vertebrate limb and their identity is regulated by signaling at the phalanx forming region (PFR) located at the tip of the developing digit ray. Here, we seek to explore the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d4d67da8ba14c2d0e05ee3356a70b11
https://pubmed.ncbi.nlm.nih.gov/34719843
https://pubmed.ncbi.nlm.nih.gov/34719843
Publikováno v:
Developmental Dynamics. 240:1212-1222
The evolutionarily conserved, non-coding ~800 base-pair zone of polarizing activity (ZPA) regulatory sequence (ZRS) controls Shh expression in the posterior limb. We report that the chicken mutant oligozeugodactly (ozd), which lacks limb Shh expressi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a52aeac7d2e1ab900feeacba530bad98
https://doi.org/10.1002/dvdy.22634
https://doi.org/10.1002/dvdy.22634
Autor:
Sean M. Hasso, Saumen Pal, Meghan E. Boyer, Timothy M. Gomez, Justin K. Murray, Michele A. Wozniak, Jing Wu, Emery H. Bresnick, Patricia J. Keely, Samuel H. Gellman, John F. Fallon
Publikováno v:
The Journal of Cell Biology
Establishment of angiogenic circuits that orchestrate blood vessel development and remodeling requires an exquisite balance between the activities of pro- and antiangiogenic factors. However, the logic that permits complex signal integration by vascu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ae74cbf91de25eb8dbddd84dc91ce51
https://doi.org/10.1083/jcb.200603152
https://doi.org/10.1083/jcb.200603152
Publikováno v:
Current Biology. 16:371-377
Summary Modern birds do not have teeth. Rather, they develop a specialized keratinized structure, called the rhamphotheca, that covers the mandible, maxillae, and premaxillae. Although recombination studies have shown that the avian epidermis can res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47fcd79c70494b8f187261fdda3a7ca2
https://doi.org/10.1016/j.cub.2005.12.047
https://doi.org/10.1016/j.cub.2005.12.047
Publikováno v:
Developmental Biology. 288:206-220
The chick talpid2 mutant displays polydactylous digits attributed to defects of the Hedgehog (HH) signaling pathway. We examined the talpid2 neural tube and show that patterning defects in the spinal cord and the midbrain are distinct from each other
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bacb83b08a7e55b205f8fb1be8d73ba
https://doi.org/10.1016/j.ydbio.2005.09.034
https://doi.org/10.1016/j.ydbio.2005.09.034
Autor:
Alexander O. Vargas, John F. Fallon
Publikováno v:
Journal of Experimental Zoology Part B: Molecular and Developmental Evolution. :86-90
Within developmental biology, the digits of the wing of birds are considered on embryological grounds to be digits 2, 3 and 4. In contrast, within paleontology, wing digits are named 1, 2, 3 as a result of phylogenetic analysis of fossil taxa indicat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::550167d3d2c5da065347eb277b98b2a5
https://doi.org/10.1002/jez.b.21023
https://doi.org/10.1002/jez.b.21023
Autor:
Alexander O. Vargas, John F. Fallon
Publikováno v:
Journal of Experimental Zoology Part B: Molecular and Developmental Evolution. :206-219
Fossil evidence documenting the evolutionary transition from theropod dinosaurs to birds indicates unambiguously that the digits of the wing of birds are digits 1, 2, and 3. However, some embryological evidence suggests that these digits are 2, 3, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aaafe385b7fcf8effc67a030af3fdd3b
https://doi.org/10.1002/jez.b.21051
https://doi.org/10.1002/jez.b.21051
Autor:
Maria A. Ros, M F Bastida, M. Dolores Delgado, Marian Fernandez-Teran, Baolin Wang, John F. Fallon
Publikováno v:
Developmental Dynamics. 231:148-160
Removal of the posterior wing bud leads to massive apoptosis of the remaining anterior wing bud mesoderm. We show here that this finding correlates with an increase in the level of the repressor form of the Gli3 protein, due to the absence of the Son
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d27256b5ad07b8a1e68b757ccb57dc16
https://doi.org/10.1002/dvdy.20121
https://doi.org/10.1002/dvdy.20121