Download or read book Examining Tail Development Models in the Four toed Salamander Hemidactylium Scutatum written by and published by . This book was released on 2014 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tails are common among most vertebrates. The embryonic tails of most vertebrates grow into adulthood while other vertebrates absorb them. Interestingly, some species of salamanders have the ability to add axial segments to their tails post-embryonically. In the salamander, Hemidactylium scutatum, postembryonic growth of the tail is due to the development of new caudal vertebrae, as well as the growth of pre-existing segments. The mechanisms that drive the postembryonic segmentation in salamanders are relatively unexplored and may offer insights on the molecular nature of tail development in vertebrates. I found evidence that larval and adult tail growth could be utilizing the same mechanisms for tail segmentation that are used in embryonic tail development by comparing the expression of Wnt8 and My5 in the developing tails of H. scutatum embryos, larvae, and adults. Specifically, the expression of Wnt8 in the growing tails suggests that both larval and adult H. scutatum continue to segment through the use of a molecular oscillating clock and/or a tail organizer, which induces the tail to undergo somitogenesis and, with the aid of Myf5, develop skeletal muscle in the tail.

Download or read book Notes on the Habits and Development of the Four toed Salamander Hemidactylium Scutatum Schlegel written by Sherman Chauncey Bishop and published by . This book was released on 1919 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sequence Analysis of Muscle Differentiation Genes in the Four toed Salamander Hemidactylium Scutatum written by and published by . This book was released on 2008 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Embryonic and Post embryonic HoxA13 Expression in the Four toed Salamander Hemidactylium Scutatum written by and published by . This book was released on 2016 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The process of somitogenesis occurs during embryological development and results in the definition of persisting axial segments. The four toed salamander, Hemidactylium scutatum, exhibits post-embryonic segmentation while most other vertebrates stop segmentation at the end of embryological development. HoxA13, a transcription factor expressed along the developing anteroposterior axis, plays a role in specifying caudal segmental identity, cell ingression into the pre-somitic mesoderm (PSM), and PSM truncation. HoxA13's responsibilities in influencing embryological development make it an interesting candidate for involvement in post-embryonic segment addition mechanisms. This study explores the role of HoxA13 in tail segmentation in H. scutatum embryonic, larval, and adult tail tip tissues using RT-PCR techniques. The results of this study indicate that HoxA13 is expressed throughout all life stages. Most importantly, these results suggest that HoxA13 determines segment identity during post-embryonic tail segmentation as it is expressed in the tips of H. scutatum larval and adult tails.

Download or read book Natural History of the Four toed Salamander H e m i d a c t y l i u m S c u t a t u m in West Virginia written by Sandra L. Kilpatrick and published by . This book was released on 1997 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Four toed Salamander written by and published by . This book was released on 2010 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Body Size as a Factor in the Joint Nesting Behavior of the Four toed Salamander Hemidactylium Scutatum written by and published by . This book was released on 2004 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Development of the Cortical Adrenal in the Four toed Salamander Hemidactylium Scutatum Schlegel written by Manlif Lelyn Branin and published by . This book was released on 1937 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Social Behavior and Kinship in the Four toed Salamander Hemidactylium Scutatum written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Range wide Phylogeography of the Four toed Salamander Hemidactylium Scutatum written by Timothy A. Herman and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Predation Dilution on the Nesting Behavior of the Four toed Salamander Hemidactylium Scutatum written by and published by . This book was released on 2001 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Trinucleotide Microsatellite DNA in the Genome of the Four toed Salamander Hemidactylium Scutatum written by and published by . This book was released on 1996 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of a Microsatellite DNA Locus in the Four toed Salamander Hemidactylium Scutatum written by and published by . This book was released on 1994 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diet Habitat Analysis and Microscopic Observation of the Four toed Salamander Hemidactylium Scutatum in Halifax Nova Scotia written by Harrison Mitchell Moore and published by . This book was released on 2011 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Developmental Decoupling Across Life Stages written by and published by . This book was released on 1995 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Nest Site Selection and Joint Nesting Behavior on the Embryonic Survival in Four toed Salamanders Hemidactylium Scutatum written by and published by . This book was released on 2006 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Predator Presence on Kin Discrimination in Larval Four toed Salamanders Hemidactylium Scutatum written by and published by . This book was released on 1999 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: