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Dissertations / Theses on the topic 'Eutherians'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Hore, Timothy Alexander, and timothy hore@anu edu au. "THE EVOLUTION OF GENOMIC IMPRINTING AND X CHROMOSOME INACTIVATION IN MAMMALS." The Australian National University. Research School of Biological Sciences, 2008. http://thesis.anu.edu.au./public/adt-ANU20081216.152553.

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Genomic imprinting is responsible for monoallelic gene expression that depends on the sex of the parent from which the alleles (one active, one silent) were inherited. X-chromosome inactivation is also a form of monoallelic gene expression. One of the two X chromosomes is transcriptionally silenced in the somatic cells of females, effectively equalising gene dosage with males who have only one X chromosome that is not complemented by a gene poor Y chromosome. X chromosome inactivation is random in eutherian mammals, but imprinted in marsupials, and in the extraembryonic membranes of some place

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2

Cox, P. G. "Functional morphology of the orbital region of eutherian mammals." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598097.

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After an initial chapter introducing the orbital region and surveying the literature, Chapter Two addresses the scope of the variation in orbital construction with a comprehensive description of the orbits of placental mammals, order by order. This information is used to score 23 morphological characters from the orbital region in representatives from as many eutherian families as possible. These character states are then plotted on to existing phylogenies of the Eutheria in order to study the evolution of orbital characters throughout the group. This elucidates which characters are more plast

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3

Dudley, Jessica Suzanne. "Uterine changes during mammalian pregnancy and the evolution of placentation." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18802.

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Reproduction is a complex phenomenon that is fundamental to all living things. There is a plethora of strategies that animals utilise to reproduce. The uterine epithelium of viviparous mammals undergoes vast remodelling to accommodate the developing embryo. There are several levels of placental invasion in mammals that develop a placenta, based on the number of cell layers that separate the developing fetus and maternal blood stream. This thesis investigated whether there are common molecular changes to the uterine surface during pregnancy in Theria. I compared uterine remodelling across sever

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4

Zhang, Xuzhe. "Eutherian-specific gene TRIML2 attenuates inflammation in the evolution of placentation." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1573576401238203.

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5

Weinstein, Deborah Lynn. "Phylogeny and Relationships of Taeniodonta, an Enigmatic Order of Eutherian Mammals (Paleogene, North America)." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1248301491.

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6

Klutzny, Simone. "Phylogenetic implications of the regio orbito-temporalis in embryonic mammals." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324355.

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7

Julien-Laferriere, Didier. "Utilisation de l'espace et des ressources alimentaires chez Caluromys philander (Marsupialia, Didelphidae) : comparaison avec Potos Flavus (Eutheria, Procyonidae)." Paris 13, 1989. http://www.theses.fr/1989PA131011.

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Les modalités d'utilisation de l'espace et des ressources alimentaires ont été étudiées chez Caluromys philander (Marsupialia, Didelphidae) en forêt primaire de Guyane française, en comparaison avec Potos Flavus (Eutheria, Procyonidae). L'organisation du domaine vital est analysée chez C. Philander. On montre que cette espèce est opportuniste et qu'il existe une influence du sexe, du stade reproducteur des femelles, ainsi que de la disponibilité des ressources alimentaires, sur certains caractères du domaine vital et du comportement des individus. Les régimes alimentaires des deux mammifères,

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8

Sloan, Angela M. "Atypical molecular evolution of afrotherian and xenarthran [beta]-globin cluster genes with insights into the [beta]-globin cluster gene organization of stem eutherians." 2005. http://hdl.handle.net/1993/20868.

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9

Hore, Tim. "The Evolution of Genomic Imprinting and X Chromosome Inactivation in Mammals." Phd thesis, 2008. http://hdl.handle.net/1885/49309.

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Genomic imprinting is responsible for monoallelic gene expression that depends on the sex of the parent from which the alleles (one active, one silent) were inherited. X-chromosome inactivation is also a form of monoallelic gene expression. One of the two X chromosomes is transcriptionally silenced in the somatic cells of females, effectively equalising gene dosage with males who have only one X chromosome that is not complemented by a gene poor Y chromosome. X chromosome inactivation is random in eutherian mammals, but imprinted in marsupials, and in the extraembryonic membranes of some place

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10

Schraven, Andrea L. "Transcriptomic analysis of the gray short-tailed opossum (Monodelphis domestica) B-cell genes." Thesis, 2019. http://hdl.handle.net/1959.7/uws:56732.

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Marsupials and eutherians are mammals that differ in their physiological traits, predominately their reproductive and developmental strategies; eutherians give birth to well-developed young, while marsupials are born highly altricial after a much shorter gestation. These developmental traits result in differences in the development of the immune system of eutherian and marsupial species. B-cells are key to humoral immunity, are found in multiple lymphoid organs, and have the unique ability to mediate the production of antigen-specific antibodies in the presence of pathogens. Marsupial B-cell i

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11

Yen, Ziny. "Comparative studies of X inactivation within Eutheria." Thesis, 2005. http://hdl.handle.net/2429/16914.

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X chromosome inactivation has not been well studied in mammals other than humans and mice. In both species, the inactive X expresses the XIST/Xist (X-inactivation specific transcript) non-coding R N A that is crucial for dosage compensation in females. Although both species belong to the same mammalian subclass, Eutheria, they show significant differences in imprinting patterns, negative regulation of XIST/Xist, and extent of silencing on the inactive X chromosome. Furthermore, the mechanism by which the Xist transcript coats and silences the X in cis is unknown. This study focuses on X-

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12

GLEN, Alistair S. "Ecology of the Spotted Tail Quoll (Dasyurus maculatus) and its interactions with eutherian predators." Thesis, 2005. http://hdl.handle.net/2123/1172.

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13

Young, Lauren Jill, University of Western Sydney, of Science Technology and Environment College, and of Science Food and Horticulture School. "Cellular immune responses of marsupials : family Macropodidae." 2002. http://handle.uws.edu.au:8081/1959.7/12869.

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This thesis describes a comprehensive study of the cellular responses of a number of endangered marsupial species with a principal focus on the tammar wallaby (Macropus eugenii) as a model macropod species. The development of in vitro experimental assays for the assessment of immune responses in this model species are described, which provided a set of benchmarks for comparisons with other members of the Macropodidae and with eutherian mammals. Once this data was collected and protocols were established, the study was extended to include investigations of the immune responses in opportunistic

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14

Young, Lauren J. "Cellular immune responses of marsupials : family Macropodidae." Thesis, 2002. http://handle.uws.edu.au:8081/1959.7/12869.

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This thesis describes a comprehensive study of the cellular responses of a number of endangered marsupial species with a principal focus on the tammar wallaby (Macropus eugenii) as a model macropod species. The development of in vitro experimental assays for the assessment of immune responses in this model species are described, which provided a set of benchmarks for comparisons with other members of the Macropodidae and with eutherian mammals. Once this data was collected and protocols were established, the study was extended to include investigations of the immune responses in opportunistic

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15

Ekdale, Eric Gregory. "Variation within the bony labyrinth of mammals." 2009. http://hdl.handle.net/2152/7862.

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The morphological diversity of the external and internal surfaces of the petrosal bone, which contains the structures of the inner ear, across a broad range of therian mammals is documented, and patterns of variation across taxa are identified. One pattern of variation is the result of ontogenetic changes in the ear region, as described for the external surface morphology of a sample of isolated petrosal bones referred to Proboscidea from Pleistocene deposits in central Texas. The morphology of the aquaeductus Fallopii for passage of the greater petrosal branch of the facial nerve supports an

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16

Montgomery, Janet, J. A. Evans, and T. Neighbour. "Sr Isotope Evidence for Population Movement Within the Hebridean Norse Community of NW Scotland." 2009. http://hdl.handle.net/10454/2790.

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No<br>The excavation at Cnip, Isle of Lewis, Scotland of the largest, and only known family cemetery from the early Norse period in the Hehrides, provided a unique opportunity to use Sr isotope analysis to examine the origins of people who may have been Norwegian Vikings. Sr isotope analysis permits direct investigation of a person's place of origin rather than indirectly through acquired cultural and artefactual affiliations. Sr isotope data suggest that the Norse group at Cnip was of mixed origins. The majority were consistent with indigenous origins but two individuals, of middle-age and di

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17

Lee-Thorp, Julia A., Ruiter D. De, B. Passey, and M. B. Sponheimer. "Isotopic Evidence for Dietary Variability in the Early Hominin Paranthropus robustus." 2006. http://hdl.handle.net/10454/4065.

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No<br>Traditional methods of dietary reconstruction do not allow the investigation of dietary variability within the lifetimes of individual hominins. However, laser ablation stable isotope analysis reveals that the ¿13C values of Paranthropus robustus individuals often changed seasonally and interannually. These data suggest that Paranthropus was not a dietary specialist and that by about 1.8 million years ago, savanna-based foods such as grasses or sedges or animals eating these foods made up an important but highly variable part of its diet.

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18

Wiesemüller, Bernhard. "Phylogenetische Untersuchungen an Schädeln der Neuweltaffen (Platyrrhini)." Doctoral thesis, 2005. http://hdl.handle.net/11858/00-1735-0000-0006-ACD0-F.

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19

Osterholz, Martin. "Molecular evolution of primates - featuring mobile elements." Doctoral thesis, 2008. http://hdl.handle.net/11858/00-1735-0000-0006-AD38-E.

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20

Merker, Stefan. "Vom Aussterben bedroht oder anpassungsfähig? - Der Koboldmaki Tarsius dianae in den Regenwäldern Sulawesis." Doctoral thesis, 2003. http://hdl.handle.net/11858/00-1735-0000-0006-AE7C-E.

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21

Womelsdorf, Thilo. "The Influence of Spatial Attention on Neuronal Receptive Field Structure within Macaque Area MT." Doctoral thesis, 2004. http://hdl.handle.net/11858/00-1735-0000-0006-AC46-7.

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