Evolution of reptilian placentation: Development of extraembryonic membranes of the Australian scincid lizards, Bassiana duperreyi (Oviparous) and Pseudemoia entrecasteauxii (Viviparous)

Journal of Morphology
James R Stewart, Michael B Thompson

Abstract

A prominent model for the evolution of placentation among Reptilia is based on placental structure among species in the Eugongylus group of Australian lygosomatine skinks. We studied the development of the extraembryonic membranes of an oviparous species, Bassiana duperreyi, and a viviparous species, Pseudemoia entrecasteauxii, within this taxonomic group. We observed differences in the timing of development of shared features and in the structure of extraembryonic membrane epithelia in the two species. In the viviparous species, there is earlier vascularization of the yolk sâc and increased vascular support for the abembryonic yolk sac splanchnopleure. Structural differences between species result in partitioning of the egg into two distinct hemispheres and produce epithelia which appear functionally histotrophic in both the chorioallantoic membrane and the bilaminar omphalopleure of the viviparous species. We propose that the evolution of placentation in P. entrecasteauxii involved a combination of heterochrony and structural innovation. Further, because our interpretation of placental structure of this species provides new information relevant to placental function, we propose a revision of a classic model for the evolution ...Continue Reading

References

Sep 1, 1958·Stain Technology·I GRIFFITHS, M E CARTER
Aug 1, 1984·Proceedings of the National Academy of Sciences of the United States of America·D G BlackburnC A Beuchat
Jun 1, 1994·Journal of Morphology·James R Stewart, Michael B Thompson

❮ Previous
Next ❯

Citations

Sep 2, 2003·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·James R Stewart, Michael B Thompson
Sep 2, 2003·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Alexander F Flemming, Daniel G Blackburn
Sep 2, 2003·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Daniel G BlackburnJennifer L Petzold
Feb 27, 2001·Journal of Morphology·A F Flemming, W R Branch
Dec 11, 2002·Journal of Morphology·James R Stewart, Klaus R Brasch
Aug 31, 2006·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·James R StewartChristopher R Murphy
Apr 2, 2005·Journal of Morphology·Maricela VillagránJames R Stewart
Nov 18, 2008·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·James R Stewart, Michael B Thompson
Dec 25, 2008·Journal of Morphology·James R Stewart, Michael B Thompson
May 8, 2009·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Joanna M BiazikChristopher R Murphy
Jun 15, 2010·Journal of Morphology·Daniel G BlackburnKent D Dunlap
Dec 8, 2005·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Michael B Thompson, Brian K Speake
May 17, 2011·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Bridget F Murphy, Michael B Thompson
Jan 21, 2015·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Michael G Elliot, Bernard J Crespi
Aug 14, 2013·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Oliver W GriffithMichael B Thompson
Sep 24, 2019·Evolution & Development·James R Stewart, Daniel G Blackburn
Aug 2, 2001·The Journal of Experimental Zoology·M B ThompsonR J McCartney
Feb 20, 2010·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Joanna M BiazikChristopher R Murphy
Jun 4, 2015·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Daniel G Blackburn
Aug 7, 2008·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Daniel G Blackburn, Alexander F Flemming
Mar 17, 2012·Journal of Anatomy·Bridget F MurphyMichael B Thompson
May 15, 2015·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Daniel G Blackburn
Jun 10, 2015·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·James U Van DykeMichael B Thompson
Jul 5, 2016·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Young K Kim, Daniel G Blackburn
Jul 13, 2002·The Journal of Experimental Zoology·Jane E Girling
Feb 3, 2004·Journal of Morphology·James R Stewart, Michael B Thompson
Jul 24, 2001·Journal of Morphology·A Jerez, M P Ramírez-Pinilla
Jun 4, 2015·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Sarena Flewelling, Scott L Parker
Jun 10, 2015·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·James R Stewart
Apr 26, 2012·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Joanna M BiazikMichael B Thompson
Mar 16, 2017·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Kevin HendrawanMichael B Thompson

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.