Synonyms for pseudemoia or Related words with pseudemoia
Examples of "pseudemoia"
Spencer is commemorated in the scientific names of two species of Australian lizards: "
spenceri" and "Varanus spenceri".
is a genus of skinks native to southeastern Australia. For similar skinks see genera "Bassiana", "Lampropholis", and "Niveoscincus".
The LPL gene is highly conserved across vertebrates. Lipoprotein lipase is involved in lipid transport in the placentae of live bearing lizards ("
Bassiana is a genus of skinks (family Scincidae). It belongs to the "Eugongylus" group; the genus "Oligosoma" appears to be a fairly close relative. An alternative name is Acritoscincus. For similar skinks see genera "
", "Lampropholis", and "Niveoscincus".
Most reptiles exhibit strict epitheliochorial placentation (e.g. "
entrecasteauxii)" however at least two examples of endotheliochorial placentation have been identified ("Mabuya"" sp." and "Trachylepis ivensi"). Unlike eutherian mammals, epitheliochorial placentation is not maintained by maternal tissue as embryos do not readily invade tissues outside of the uterus.
The southern grass skink ("
entrecasteauxii" ) is a species of skink endemic to Australia, where it is found in the south-east of the continent, as well as in Tasmania and the islands of Bass Strait. Although it occurs in a variety of habitats, it is most commonly found in open grassy woodlands.
Lampropholis, the Indo-Australian ground skinks or sunskinks, are a genus of skinks in the lizard subfamily Lygosominae. The genus "Lampropholis" belongs to a clade with the genera "Niveoscincus", "Leiolopisma" and possibly others of the "Eugongylus" group. They are found mainly in Indonesia and Australia. For similar skinks see genera "Bassiana", "
", and "Niveoscincus".
Niveoscincus is a genus of skinks (family Scincidae), commonly called snow skinks or cool-skinks and residing mainly in Tasmania or Victoria, Australia. The genus "Niveoscincus" belongs to a clade with the genera "Carlia", "Lampropholis" and possibly others of the "Eugongylus" group. For similar skinks see genera "
", "Lampropholis", and "Bassiana". These skinks have adapted to the cooler weather of southern Australia and particularly Tasmania, hence the common names.
There is no relationship between sex-determining mechanisms and whether a species bears live young or lays eggs. Temperature-dependent sex determination, which cannot function in an aquatic environment, is seen only in terrestrial viviparous reptiles. Therefore, marine viviparous species, including sea snakes and, it now appears, the mosasaurs, ichthyosaurs, and plesiosaurs of the Cretaceous, use genotypic sex determination (sex chromosomes), much as birds and mammals do. Genotypic sex determination is also found in most reptiles, including many viviparous ones (such as "
entrecasteauxii"), whilst temperature dependent sex determination is found in some viviparous species, such as the montane water skink ("Eulamprus tympanum").
Claire Weekes began her career as a research scientist, receiving her D Sc in 1930 from the University of Sydney; she was the first woman to attain that degree from the university. Working under Prof. Launcelot Harrison, she conducted research on reproduction and placentation in viviparous (live-bearing) lizards from 1925–1934; part of this period (1929–1931) was spent in England in the lab of J.P. Hill. Weekes' work led to eight published papers, including a major summary published in 1935 in the Proceedings of the Zoological Society of London. Weekes' work provided the basis an understanding of reptile placentation that lasted for nearly 50 years. More recent work has continued to build on the empirical and conceptual framework that she established. Weekes' research on the complex placentae of "
entrecasteauxii" was instrumental in the establishment of the species as a model organism for studying the evolution of pregnancy.
The southern grass skink has become a model species for reproductive biology in reptiles because it gives birth to live young and exhibits non-invasive epitheliochorial placentation. Unlike the majority of live bearing reptiles, "
" develop complex placentae, which provide a substantial amount of nutrients to the embryo through pregnancy. Pregnancy in squamates is supported by the evolution of a novel state of gene regulation. The amount of nutrients provided is dependent on the amount of food females consume during pregnancy, and, unlike other live-bearing reptiles, scarcity of food during pregnancy can cause developmental failure. When food is limiting, females will also cannibalize their offspring. Together, these results suggest that placental nutrient transport may only be a successful mode of reproduction if food is abundant throughout pregnancy, which may limit its opportunities to evolve in some reptiles. Lipid transport in this species most likely occurs through the yolk sac placenta and is facilitated in part by the production of the protein lipoprotein lipase. The first observation of an extra-uterine pregnancy in a reptile was found in this species. The extra-uterine embryo did not invade maternal tissue, suggesting fundamental differences between the nature and evolution of placentation in southern grass skinks and eutherian mammals.
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