Evolution of viviparity: what can Australian lizards tell us?

Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
M B ThompsonChristopher R Murphy

Abstract

Historically, Australia has been important in the study of, and the development of hypotheses aimed at understanding, the evolution of viviparity in amniote vertebrates. Part of the importance of Australia in the field results from a rich fauna of skinks, including one of the broadest ranges of diversity of placental structures within one geographic region. During the last decade, we have focussed our studies on one lineage, the Eugongylus group of skinks of the subfamily Lygosominae because it contains oviparous species and some that exhibit complex placentae. Our specific objective has been to attempt to understand the fundamental steps required when viviparity, and ultimately complex placentae, evolve from oviparous ancestors. We have taken a three-prong approach: (1) detailed study of the morphology and ontogeny of the placentae of key species at the light microscope level; (2) study of changes in the uterus associated with pregnancy, or the plasma membrane transformation; and (3) measures of the net exchange of nutrients across the placenta or eggshell of key species. In turn, we have found that: (1) details of the morphology and ontogeny of placentae are more complex that originally envisaged, and that the early conclusio...Continue Reading

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Citations

Dec 8, 2005·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Michael B Thompson, Brian K Speake
Jul 28, 2007·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Joanna M BiazikChristopher R Murphy
May 17, 2011·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Bridget F Murphy, Michael B Thompson
Nov 22, 2002·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Michael B Thompson, Brian K Speake
May 4, 2004·The American Naturalist·Bernard Crespi, Christina Semeniuk
Feb 19, 2009·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·James R StewartMichael B Thompson
Apr 28, 2007·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Michael B ThompsonChristopher R Murphy
Oct 5, 2011·Journal of Fish Biology·J J Zúñiga-VegaJ B Johnson
Apr 26, 2012·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Joanna M BiazikMichael B Thompson
Apr 18, 2014·Journal of Morphology·Melanie K LairdBronwyn M McAllan
Nov 6, 2004·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Brian K SpeakeMichael B Thompson
Jun 6, 2006·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Murray ThomsonMichael B Thompson
Jul 26, 2005·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Murray ThomsonMichael B Thompson
May 15, 2015·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Daniel G Blackburn
Jun 4, 2015·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Daniel G Blackburn
Apr 23, 2016·General and Comparative Endocrinology·Oliver W GriffithMichael B Thompson
Dec 21, 2016·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Melanie K LairdMichael B Thompson
Apr 19, 2007·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Marcelo N PiresDavid N Reznick
Apr 4, 2008·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Joanna M BiazikChristopher R Murphy
Dec 17, 2005·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Linda NeavesJean M P Joss

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