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Artículos de revistas sobre el tema "Tammar wallaby"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 21 de febrero de 2023

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1

Lentle, R. G., I. D. Hume, K. J. Stafford, M. Kennedy, B. P. Springett, and S. Haslett. "Observations on fresh forage intake, ingesta particle size and nutrient digestibility in four species of macropod." Australian Journal of Zoology 51, no. 6 (2003): 627. http://dx.doi.org/10.1071/zo02032.

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The particle-size distributions of the ingesta of the sacciform forestomach in free-ranging animals of a grazing macropod species [Macropus eugenii (tammar wallaby)], a grazer/browser [Macropus parma (parma wallaby)], a browser/grazer [Petrogale penicillata (brush-tailed rock-wallaby)] and a browser [Wallabia bicolor (swamp wallaby)] from Kawau Island, New Zealand, were compared with those of captive animals maintained on a standing ryegrass (Lolium perenne) sward. Nutrient digestibility was also measured in tammar and parma wallabies fed ryegrass or browse, i.e. fresh mahoe (Melicytus ramiflo

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2

Lentle, R. G., K. J. Stafford, M. A. Potter, B. P. Springett, and S. Haslett. "Temporal patterns of drinking in the tammar wallaby (Macropus eugenii Desmarest)." Australian Journal of Zoology 47, no. 1 (1999): 67. http://dx.doi.org/10.1071/zo98035.

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The temporal association between drinking and feeding in four captive tammar wallabies (Macropus eugenii Desmarest) maintained on various foods is examined. Tammars maintained on cubed carrots never drank. In tammars fed pellets food-associated drinking took place and 77.5% (7.4, s.e.) of drinking episodes commenced within 60 s of the beginning or end of a feeding event. Drinking events occurred singly, were of short duration and increased in frequency but not duration, when low-quality pellets were fed. Food- associated drinking in the tammar may result from the induction of drinking episodes

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3

O'Neill, RJ Waugh, MDB Eldridge, R. Toder, MA Ferguson-Smith, P. C. O'Brien, and JAM Graves. "Chromosome evolution in kangaroos (Marsupialia: Macropodidae): Cross species chromosome painting between the tammar wallaby and rock wallaby spp. with the 2n = 22 ancestral macropodid karyotype." Genome 42, no. 3 (June 1, 1999): 525–30. http://dx.doi.org/10.1139/g98-159.

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Marsupial mammals show extraordinary karyotype stability, with 2n = 14 considered ancestral. However, macropodid marsupials (kangaroos and wallabies) exhibit a considerable variety of karyotypes, with a hypothesised ancestral karyotype of 2n = 22. Speciation and karyotypic diversity in rock wallabies (Petrogale) is exceptional. We used cross species chromosome painting to examine the chromosome evolution between the tammar wallaby (2n = 16) and three 2n = 22 rock wallaby species groups with the putative ancestral karyotype. Hybridization of chromosome paints prepared from flow sorted chromosom

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4

Lentle, R. G., I. D. Hume, K. J. Stafford, M. Kennedy, B. P. Springett, and S. Haslett. "Differences in renal and alimentary water conservation account for differences in the distribution of tammar and parma wallabies on Kawau Island, New Zealand." Australian Journal of Zoology 51, no. 4 (2003): 371. http://dx.doi.org/10.1071/zo02074.

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Surveys of two wallaby species on Kawau Island, New Zealand, indicated that their distribution was stable so as to permit niche partitioning. Multivariate analysis of environmental factors associated with the relative distribution of tammar and parma wallabies suggested that their distribution may be influenced by the availability of fresh water. Tammar wallabies have greater renal size, mass and relative medullary area than parma wallabies and thus may have greater renal water-conserving capabilities. The tammar colon is significantly longer than that of the parma wallaby and the water conten

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5

Munn, Adam J., Peter Banks, and Ian D. Hume. "Digestive plasticity of the small intestine and the fermentative hindgut in a marsupial herbivore, the tammar wallaby (Macropus eugenii)." Australian Journal of Zoology 54, no. 4 (2006): 287. http://dx.doi.org/10.1071/zo06004.

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We investigated the effects of a ground, pelleted diet versus natural forage on the gross morphology of the gastrointestinal tract of a medium-sized (5–7 kg body mass) macropodid marsupial, the tammar wallaby (Macropus eugenii). The empty wet mass (g) of the small intestine of tammar wallabies maintained on a pelleted diet for 6 weeks was 22% greater than that of animals maintained on natural forage, once body mass was taken into account by ANCOVA. Similarly, the body-mass-adjusted length of the tammar wallaby caecum and proximal colon combined was 25% longer in animals maintained on the pelle

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6

Spindler, Rebecca E., Marilyn B. Renfree, Geoffrey Shaw, and David K. Gardner. "Reactivating Tammar Wallaby Blastocysts Oxidize Glucose1." Biology of Reproduction 58, no. 6 (June 1, 1998): 1425–31. http://dx.doi.org/10.1095/biolreprod58.6.1425.

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7

Kay, D. J., and A. L. Kitchener. "Immune response of the tammar wallaby (Macropus eugenii) to sperm antigens." Reproduction, Fertility and Development 15, no. 8 (2003): 429. http://dx.doi.org/10.1071/rd03009.

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In the present study, male and female tammar wallabies were immunised with whole tammar wallaby sperm in adjuvant. An assay for sperm antibodies using a live sperm ELISA has been developed to detect sperm surface antigens and used to validate an assay using a 3-[(3-cholamidopropyl) dimethylammonio]-1 propanesulfonate (CHAPS) membrane extract of whole tammar wallaby sperm. The tests were used to monitor the immune response to whole sperm in both male and female tammar wallabies. Antisera with a limited array of specificities were generated, with those locating to the midpiece region of the sper

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8

Sankovic, Natasha, Wayne Bawden, John Martyn, Jennifer A. M. Graves, and Kurt Zuelke. "Construction of a marsupial bacterial artificial chromosome library from the model Australian marsupial, the tammar wallaby (Macropus eugenii)." Australian Journal of Zoology 53, no. 6 (2005): 389. http://dx.doi.org/10.1071/zo05033.

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With the accelerating recognition of the power of comparative genomics, there is now enormous interest in sequencing the genomes of a broad range of species. Marsupials diverged at an important evolutionary time. The model Australian marsupial, the tammar wallaby (Macropus eugenii), has long been a resource for biological and genetic studies of marsupials, and the availability of a bacterial artificial chromosome (BAC) library will be a valuable resource in these studies. A tammar wallaby BAC library was constructed using pRazorBAC vector. It contains 55 296 clones with an average insert size

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9

Lentle, R. G., K. J. Stafford, Y. Hemar, P. Aseruvujanon, D. J. Mellor, and P. J. Moughan. "Changes in the physical properties of stomach digesta during fasting in tammar wallabies (Macropus eugenii eugenii)." Australian Journal of Zoology 55, no. 6 (2007): 383. http://dx.doi.org/10.1071/zo07055.

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We compared changes in the particle size profiles, permeability and elastic shear modulus of digesta in the forestomach and rumen of fasting tammar wallabies (Macropus eugenii eugenii) and fistulated sheep respectively that had been fed chopped lucerne hay. The wet mass of digesta in the tammar wallaby stomach declined curvilinearly over 24 h. The relative proportion of particles >2 mm in size in tammar wallaby digesta increased significantly and that of particles <2 mm in size decreased significantly after 12 h of fasting. This contrasted with the sheep rumen digesta, in which the relat

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10

Gamat, M., M. B. Renfree, A. J. Pask, and G. Shaw. "230. Megalin, RAP and Nkx3.1 expression in the developing reproductive tract of a marsupial, the tammar wallaby." Reproduction, Fertility and Development 20, no. 9 (2008): 30. http://dx.doi.org/10.1071/srb08abs230.

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Androgens induce the differentiation of the urogenital sinus (UGS) to form a prostate. An early marker of this response is upregulation of the transcription factor Nkx3.1 in the urogenital epithelium in the precursors of prostatic buds. In tammars, prostate differentiation begins ~3 weeks after birth and after the time the testis starts to secrete androgens, and 2 weeks after androgen stimulated Wolffian duct differentiation. The reason for this delay in prostate differentiation is unexplained. Androgen receptors are present in the UGS, and the potent androgen, androstanediol, induces prostati

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11

Magarey, Genevieve M., and Karen E. Mate. "Timing and ultrastructure of events following intracytoplasmic sperm injection in a marsupial, the tammar wallaby (Macropus eugenii)." Reproduction, Fertility and Development 15, no. 7 (2003): 397. http://dx.doi.org/10.1071/rd03033.

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The aim of the present study was to determine the timing of oocyte activation, sperm decondensation and pronucleus formation after intracytoplasmic sperm injection (ICSI) in the tammar wallaby and to determine the fate of sperm structures at an ultrastructural level. Metaphase II-stage tammar wallaby oocytes were injected with spermatozoa and cultured for 1 (n = 15), 2 (n = 24), 4 (n = 30), 6 (n = 14), 8 (n = 32), 10 (n = 25), 12 (n = 29) or 19 h (n = 12). Oocytes were assessed using light, fluorescence and electron microscopy. The timing of oocyte activation and sperm decondensation after ICS

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12

D Patterson, S., K. Bell, and WE Poole. "Tammar Wallaby Plasma Protease Inhibitory (Pi) Proteins." Australian Journal of Biological Sciences 40, no. 4 (1987): 355. http://dx.doi.org/10.1071/bi9870355.

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Electrophoretic examination (isoelectric focusing and polyacrylamide gel electrophoresis) of 157 plasmas from a Kangaroo Island population of tammar wallabies (Macropus eugenii) resulted in the identification of five putative condominant protease inhibitor alleles, F, I, M, P and S, which exhibited microheterogeneity due to variable terminal sialic acid content. The frequencies of the five alleles in this popUlation were 0.041(F), 0.682(1), 0.194(M), 0.073(P) and O.OIO(S). The proteins had isoelectric points in the pH range 3.94-4.38, Mr of 60 500 to 66 000 and were identified as protease inhi

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13

Schneider, Nanette Y., Terence P. Fletcher, Geoff Shaw, and Marilyn B. Renfree. "The vomeronasal organ of the tammar wallaby." Journal of Anatomy 213, no. 2 (August 2008): 93–105. http://dx.doi.org/10.1111/j.1469-7580.2008.00933.x.

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14

Young, L. J., and E. M. Deane. "Culture and Stimulation of Tammar Wallaby Lymphocytes." Veterinary Research Communications 31, no. 6 (January 23, 2007): 685–701. http://dx.doi.org/10.1007/s11259-007-0057-9.

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15

McFarlane, James R., Carl D. Rudd, Lynda M. Foulds, Terry P. Fletcher, and Marilyn B. Renfree. "Isolation and partial characterization of tammar wallaby luteinizing hormone and development of a radioimmunoassay." Reproduction, Fertility and Development 9, no. 4 (1997): 475. http://dx.doi.org/10.1071/r96089.

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Tammar wallaby (Macropus eugenii) luteinizing hormone (LH) was purified from pituitaries collected from wild and captive populations by salt sequential precipitation, ion exchange chromatography and gel filtration. Pituitary tissue (5 g) yielded 1·8 mg of purified wallaby luteinizing hormone (ME-14B), as verified by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). A heterologous radioimmunoassay has been developed for measurement of LH in plasma of marsupials using a monoclonal antibody raised against bovine LH (518B7). This assay system was able to measure basal LH concen

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16

Collet, C., R. Joseph, and K. Nicholas. "Molecular characterization and in-vitro hormonal requirements for expression of two casein genes from a marsupial." Journal of Molecular Endocrinology 8, no. 1 (February 1992): 13–20. http://dx.doi.org/10.1677/jme.0.0080013.

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ABSTRACT Two marsupial casein genes have been isolated from a tammar wallaby (Macropus eugenii) mammary gland cDNA library. Comparisons of the tammar α- and β-casein genes with their eutherian homologues reveal extensive divergence at the levels of nucleotide and amino acid sequences. Regions of similarity between the tammar and eutherian Ca2+-sensitive caseins are restricted to the major phosphorylation sites and the signal peptides. Quantification of casein mRNA levels in hormone-stimulated mammary gland explants from tammars in late pregnancy suggests that maximal induction of the β-casein

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17

Lentle, R. G., I. D. Hume, K. J. Stafford, M. Kennedy, S. Haslett, and B. P. Springett. "Comparisons of indices of molar progression and dental function of brush-tailed rock-wallabies (Petrogale penicillata) with tammar (Macropus eugenii) and parma (Macropus parma) wallabies." Australian Journal of Zoology 51, no. 3 (2003): 259. http://dx.doi.org/10.1071/zo02007.

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We measured parameters of molar progression and dental function in the brush-tailed rock-wallaby (Petrogale pencilliata) (a browser/grazer) and compared them with data from the tammar wallaby (Macropus eugenii) (a grazer) and the parma wallaby (Macropus parma) (a grazer/browser).Although the mean value of the molar index (MI) was higher in rock-wallabies than in parma and tammar wallabies the mean rate of increase of log(MI) with log(body mass) was similar in the three species. Reported differences between these species in their rates of molar progression with age may therefore result from dif

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18

Jungnickel, M. K., and L. A. Hinds. "Hormonal profiles in the tammar wallaby, Macropus eugenii, following FSH/LH superovulation." Reproduction, Fertility and Development 12, no. 8 (2000): 457. http://dx.doi.org/10.1071/rd99037.

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This study investigated the effect of superovulation with exogenous porcine FSH/LH on the normal hormonal milieu of the tammar wallaby (Macropus eugenii). During seasonal and lactational quiescence, groups of 6 females were treated with either multiple doses of porcine follicle-stimulating hormone (FSH) (8 6 mg i.m., 12 h apart) followed by a single subcutaneous injection of 4 mg porcine luteinizing hormone (LH) on Day 5 or saline. Blood samples were collected throughout each 10-day experimental period and each female was examined twice daily for signs of a recent copulation. On Day 9, females

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19

Mate, Karen E., and Janine M. Buist. "Timing and regulatory aspects of oocyte maturation in vitro in the tammar wallaby (Macropus eugenii)." Reproduction, Fertility and Development 11, no. 5 (1999): 247. http://dx.doi.org/10.1071/rd99069.

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Oocytes from a marsupial, the tammar wallaby (Macropus eugenii), resemble those of eutherian mammals in their ability to resume meiosis in vitro when cultured under suitable conditions. Culture for 42–48 h in Eagle’s minimum essential medium (EMEM) supplemented with 10% fetal calf serum, and 10 g mL –1 porcine luteinizing hormone (pLH) was required in order for oocytes, collected from the large antral follicles (> 2 mm diameter) of tammar wallabies (primed with 6 mg of porcine follicle stimulating hormone twice daily for four days), to proceed to metaphase II (MII) of meiosis. Under these c

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20

Ishihara, Teruhito, Oliver W. Griffith, Gerard A. Tarulli, and Marilyn B. Renfree. "Male germline development in the tammar wallaby, Macropus eugenii." Reproduction 161, no. 3 (March 2021): 333–41. http://dx.doi.org/10.1530/rep-20-0634.

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Male germ cells undergo two consecutive processes – pre-spermatogenesis and spermatogenesis – to generate mature sperm. In eutherian mammals, epigenetic information such as DNA methylation is dynamically reprogrammed during pre-spermatogenesis, before and during mitotic arrest. In mice, by the time germ cells resume mitosis, the majority of DNA methylation is reprogrammed. The tammar wallaby has a similar pattern of germ cell global DNA methylation reprogramming to that of the mouse during early pre-spermatogenesis. However, early male germline development in the tammar or in any marsupial has

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21

Young, Lauren J., Jessica Gurr, Katrina Morris, Sabine Flenady, and Katherine Belov. "Molecular characterisation of Interleukin-2 in two Australian marsupials (the tammar wallaby, Notamacropus eugenii, and the Tasmanian devil, Sarcophilus harrisii) facilitates the development of marsupial-specific immunological reagents." Australian Mammalogy 41, no. 1 (2019): 39. http://dx.doi.org/10.1071/am17027.

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Interleukin-2 (IL-2) is an important regulator of cellular immunity in mammals. For many years, our inability to identify the expression of this cytokine in marsupials hindered our capacity to progress studies in metatherian immunology. Here, we report the use of molecular techniques to characterise the IL-2 gene for the tammar wallaby (Notamacropus eugenii) and the Tasmanian devil (Sarcophilus harrisii), which allowed the prediction of the structure and probable functions of the IL-2 proteins of these species. Deduced marsupial IL-2 proteins show considerable sequence identity to each other a

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22

Rose, R. W., J. A. A. Horak, A. D. Shetewi, and S. M. Jones. "Pregnancy in a marsupial, the Tasmanian pademelon (Thylogale billardierii)." Reproduction, Fertility and Development 11, no. 3 (1999): 175. http://dx.doi.org/10.1071/rd99058.

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The Tasmanian pademelon, Thylogale billardierii, is a medium-sized wallaby that adapts well to captivity and, unlike the well-studied tammar wallaby, is capable of breeding all year round. It may, there-fore, be a useful model species for research into the reproductive biology of macropod marsupials. This paper presents necessary background data on histological changes in the reproductive organs and the rate of embryonic growth during gestation in T. billardierii. After Day 4 RPY (removal of young from the pouch) the gravid and non-gravid uteri differ significantly in some histological paramet

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23

Lentle, R. G., I. D. Hume, K. J. Stafford, M. Kennedy, S. Haslett, and B. P. Springett. "Molar progression and tooth wear in tammar (Macropus eugenii) and parma (Macropus parma) wallabies." Australian Journal of Zoology 51, no. 2 (2003): 137. http://dx.doi.org/10.1071/zo02008.

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We investigated the functional significance of molar progression and the influence of diet on the usefulness of molar progression as an index of age in two macropodid marsupials, the tammar wallaby (Macropus eugenii), a grazing species, and the parma wallaby (Macropus parma), a browser/grazer, by exploring the relationships between the index of molar progression and several skull and tooth parameters. We also tested allometric models that related molar progression and aspects of tooth morphology to body mass. Results support the notion that molar progression in these closely related macropods

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24

Molinia, FC, and JC Rodger. "Pellet-freezing spermatozoa of two marsupials: the tammar wallaby, Macropus eugenii, and the brushtail possum, Trichosurus vulpecula." Reproduction, Fertility and Development 8, no. 4 (1996): 681. http://dx.doi.org/10.1071/rd9960681.

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A protocol was developed for pellet-freezing spermatozoa of the tammar wallaby and the brushtail possum. Seren was collected by electro-ejaculation and wallaby spermatozoa were washed by 'swim-up' into phosphate-buffered saline (PBS), whereas possum spermatozoa were not washed. Wallaby spermatozoa were screened for toxicity in diluents containing a range of cryoprotectants (0-10%): dimethyl sulfoxide (DMSO), ethylene glycol and propanediol. Possum spermatozoa were tolerant of diluents containing 17.5% glycerol. Wallaby and possum spermatozoa were diluted 1:1 with the most promising cryoprotect

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25

Baudinette, R. V., G. K. Snyder, and P. B. Frappell. "Energetic cost of locomotion in the tammar wallaby." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 262, no. 5 (May 1, 1992): R771—R778. http://dx.doi.org/10.1152/ajpregu.1992.262.5.r771.

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Rates of oxygen consumption and blood lactate levels were measured in tammar wallabies (Macropus eugenii) trained to hop on a treadmill. In addition, the work required to overcome wind resistance during forward locomotion was measured in a wind tunnel. Up to approximately 2.0 m/s, rates of oxygen consumption increased linearly with speed and were not significantly different from rates of oxygen consumption for a quadruped of similar body mass. Between 2.0 and 9.4 m/s, rates of oxygen consumption were independent of hopping speed, and between 3.9 and 7.9 m/s, the range over which samples were o

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26

Blumstein, Daniel T., Janice C. Daniel, Jodie G. Ardron, and Christopher S. Evans. "Does Feeding Competition Influence Tammar Wallaby Time Allocation?" Ethology 108, no. 11 (November 2002): 937–45. http://dx.doi.org/10.1046/j.1439-0310.2002.00823.x.

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27

DEANE, E. M., K. BASDEN, L. BURNETT, A. PROOS, and D. W. COOPER. "Serum analytes in the Tammar wallaby, Macropus eugenii." Australian Veterinary Journal 75, no. 2 (February 1997): 141–42. http://dx.doi.org/10.1111/j.1751-0813.1997.tb14177.x.

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28

Cone-Wesson, Barbara K., Kenneth G. Hill, and Guang-Bin Liu. "Auditory brainstem response in tammar wallaby (Macropus eugenii)." Hearing Research 105, no. 1-2 (March 1997): 119–29. http://dx.doi.org/10.1016/s0378-5955(96)00199-2.

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29

Hickford, D., S. Frankenberg, and M. B. Renfree. "Performing Surgery on Tammar Wallaby (Macropus eugenii) Adults." Cold Spring Harbor Protocols 2009, no. 12 (December 1, 2009): pdb.prot5333. http://dx.doi.org/10.1101/pdb.prot5333.

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30

Hickford, D., S. Frankenberg, and M. B. Renfree. "Surgery on Tammar Wallaby (Macropus eugenii) Pouch Young." Cold Spring Harbor Protocols 2009, no. 12 (December 1, 2009): pdb.prot5334. http://dx.doi.org/10.1101/pdb.prot5334.

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31

Hickford, D., S. Frankenberg, and M. B. Renfree. "Culturing Tammar Wallaby (Macropus eugenii) Pouch Young Gonads." Cold Spring Harbor Protocols 2009, no. 12 (December 1, 2009): pdb.prot5336. http://dx.doi.org/10.1101/pdb.prot5336.

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32

Nicholas, K. R., та C. H. Tyndale-Biscoe. "Prolactin-dependent accumulation of α-lactalbumin in mammary gland explants from the pregnant tammar wallaby (Macropus eugenii)". Journal of Endocrinology 106, № 3 (вересень 1985): 337–42. http://dx.doi.org/10.1677/joe.0.1060337.

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ABSTRACT The minimal hormonal requirements for the in-vitro accumulation of α-lactalbumin have been investigated in a marsupial, the tammar (Macropus eugenii). Mammary gland explants from 24-day pregnant tammars cultured in medium containing bovine insulin, cortisol and ovine prolactin showed a progressive increase in accumulation of α-lactalbumin during 4 days of incubation. No increment was observed if prolactin was omitted from the medium. However, a similar rate of increase was observed after 3 days of culture in medium containing prolactin alone. This induction of α-lactalbumin was maxima

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33

Lentle, R. G., I. D. Hume, K. J. Stafford, M. Kennedy, S. Haslett, and B. P. Springett. "Comparison of tooth morphology and wear patterns in four species of wallabies." Australian Journal of Zoology 51, no. 1 (2003): 61. http://dx.doi.org/10.1071/zo01078.

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Tooth morphology of two browsing macropods (brush-tailed rock-wallabies and swamp wallabies), one grazing species (tammar wallaby) and one mixed feeder (parma wallaby) are compared. The dental action of a single tammar wallaby was studied by cinefluoroscopy. Cinefluoroscopy showed independent rotation of each hemi-jaw on occlusion in the tammar, and the disposition of molar striae suggest a similar pattern of jaw movement in all four species. There was a close relationship between incisor and molar action in both grazing and browsing species. Initial occlusion of the anterior facets of the inc

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34

Frankenberg, S., A. J. Pask, and M. B. Renfree. "259. Pluripotency genes in a marsupial, the tammar wallaby." Reproduction, Fertility and Development 20, no. 9 (2008): 59. http://dx.doi.org/10.1071/srb08abs259.

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Markers of pluripotency and early differentiation in the early embryo have been extensively characterised in eutherian species, most notably the mouse. By comparison, mechanisms controlling pluripotency and early lineage specification have received surprisingly little attention in marsupials, which represent the second major infraclass of mammals. Early marsupial embryogenesis exhibits overt morphological differences to that of eutherians, however the underlying developmental mechanisms may be conserved. In order to characterise early marsupial development at the molecular level, we have ident

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35

Hendry, KA, KJ Simpson, KR Nicholas, and CJ Wilde. "Autocrine inhibition of milk secretion in the lactating tammar wallaby (Macropus eugenii)." Journal of Molecular Endocrinology 21, no. 2 (October 1, 1998): 169–77. http://dx.doi.org/10.1677/jme.0.0210169.

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The lactating tammar wallaby progressively alters the rate of secretion and composition of its milk to provide appropriate nutrition for the developing offspring, whose needs are signalled by changes in the pattern and efficiency of its sucking. Tammars are also capable of asynchronous concurrent lactation, when the mother provides a dilute milk for a newborn young permanently attached to the teat (phase 2A of lactation), and a concentrated milk from an adjacent mammary gland for a young-at-heel (phase 3). The relationship between suckling behaviour and milk secretion, and the ability of adjac

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36

Hickford, D., A. Pask, G. Shaw, and M. B. Renfree. "264. Primordial germ cell specification in a marsupial, the tammar wallaby." Reproduction, Fertility and Development 20, no. 9 (2008): 64. http://dx.doi.org/10.1071/srb08abs264.

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Primordial germ cells (PGCs) are the precursors of the gametes. In the mouse, PGCs are specified within the proximal epiblast in response to signals from the extraembryonic membranes during early gastrulation. Epiblast cells competent to form PGCs express Ifitm3. A subset of these cells then express Blimp1, a marker of PGC precursors. Once lineage-restricted, PGCs express Stella. Germ cells entering the gonads express VASA protein, which is a component of the germ plasm in animals in which germ cells are specified by the inheritance of maternal determinatives. Almost all of the research on mam

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37

Lentle, R. G., I. D. Hume, K. J. Stafford, M. Kennedy, B. P. Springett, R. Browne, and S. Haslett. "Temporal aspects of feeding events in tammar (Macropus eugenii) and parma (Macropus parma) wallabies. I. Food acquisition and oral processing." Australian Journal of Zoology 52, no. 1 (2004): 81. http://dx.doi.org/10.1071/zo02043.

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We studied parameters that influence the efficiency of food acquisition and oral processing in the tammar wallaby (a grazer) and the parma wallaby (a grazer/browser), both in captivity and under free range on Kawau Island, New Zealand.In captivity, both species spent less time feeding per gram of dry matter intake when browsing than when grazing, and there were no significant differences between the species with respect to the rates of feeding per gram of dry matter intake of a given food. However, under free-ranging conditions, tammar wallabies spent longer feeding than did parma wallabies, s

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38

Hinds, LA, TP Fletcher, and JC Rodger. "Hormones of oestrus and ovulation and their manipulation in marsupials." Reproduction, Fertility and Development 8, no. 4 (1996): 661. http://dx.doi.org/10.1071/rd9960661.

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Oestrus and ovulation occur spontaneously in the majority of marsupials, with behavioural oestrus usually occurring 1-2 days before ovulation. The hormone changes that occur at this time have been described in the most detail for the monovular tammar wallaby Macropus eugenii. The respective roles of the Graafian follicle, corpus luteum and the pituitary in the events leading up to oestrus and ovulation in this species are also reviewed. Recently, various protocols have been developed for superovulation of marsupials, including Australian species, such as the brush-tailed possum, fat-tailed dun

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39

Collet, C., R. Joseph, and K. Nicholas. "Cloning, cDNA analysis and prolactin-dependent expression of a marsupial alpha-lactalbumin." Reproduction, Fertility and Development 2, no. 6 (1990): 693. http://dx.doi.org/10.1071/rd9900693.

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The gene for alpha-lactalbumin has been cloned from a tammar wallaby (Macropus eugenii) mammary gland cDNA library. Tammar alpha-lactalbumin has approximately 50 and 30% homology to the alpha-lactalbumins of eutherians at the levels of nucleotide and protein sequence respectively. Comparison of the inferred tammar polypeptide sequence with the sequence of the eutherian proteins reveals extensive divergence at almost all of the non-essential amino acid residues. However, the hydropathy plots of the tammar protein are almost identical to those of eutherian alpha-lactalbumins, suggesting that pro

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40

Lentle, R. G., K. J. Stafford, M. A. Potter, B. P. Springett, and S. Haslett. "Ingesta particle size, food handling and ingestion in the tammar wallaby (Macropus eugenii Desmarest)." Australian Journal of Zoology 47, no. 1 (1999): 75. http://dx.doi.org/10.1071/zo98038.

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The particle size distribution of stomach contents from 25 tammar wallabies (Macropus eugenii Desmarest) shot in the Okataina State Forest and adjoining farmland near Rotorua, New Zealand, were determined. There was a greater percentage of finer, and a smaller percentage of larger, particles than reported in the stomach contents of larger macropods. The chewing and biting activities of four free-ranging tammars fitted with radio-microphone collars were monitored. Chewing rates (chews per minute) were similar to those of other small herbivorous vertebrates. There were significantly lower rates

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41

Arthur, H., K. Bell, and D. W. Cooper. "Plasma protein polymorphisms in the tammar wallaby, Macropus eugenii." Australian Journal of Zoology 46, no. 2 (1998): 193. http://dx.doi.org/10.1071/zo97047.

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Five populations of the Australian tammar wallaby, Macropus eugenii, from Kangaroo Island, South Australia, and Garden, Abrolhos and Middle Islands and Perup, Western Australia, were examined for plasma protein polymorphisms. Select Kangaroo/Garden Island hybrids and backcross progeny were also included in the study. Vitamin D binding protein (GC), albumin (ALB), transferrin (TF), protease inhibitor (PI), haemopexin (HX), haptoglobin (HP) and immunoglobulin G (IgG) were identified by polyacrylamide gel electrophoresis, pH 7.9, isoelectric focusing, pH 4.2–4.9, and immunoblotting with rabbit an

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42

Whitworth, D. J., Geoffrey Shaw, and M. B. Renfree. "Müllerian duct regression in a marsupial, the tammar wallaby." Anatomy and Embryology 196, no. 1 (June 26, 1997): 39–46. http://dx.doi.org/10.1007/s004290050078.

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43

Borchers, Clare, Geoff Shaw, Doug Eckery, Marilyn Renfree, and David Robertson. "67. Inhibin in the male tammar wallaby, Macropus eugenii." Reproduction, Fertility and Development 15, no. 9 (2003): 67. http://dx.doi.org/10.1071/srb03ab67.

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44

Leihy, M. W., G. Shaw, J. D. Wilson, and M. B. Renfree. "Development of the Penile Urethra in the Tammar Wallaby." Sexual Development 5, no. 5 (2011): 241–49. http://dx.doi.org/10.1159/000334053.

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45

Hickford, D., S. Frankenberg, and M. B. Renfree. "Culturing Tammar Wallaby (Macropus eugenii) Peri-gastrulation Stage Embryos." Cold Spring Harbor Protocols 2009, no. 12 (December 1, 2009): pdb.prot5337. http://dx.doi.org/10.1101/pdb.prot5337.

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46

Hickford, D., S. Frankenberg, and M. B. Renfree. "Immunohistochemical Staining of Sectioned Tammar Wallaby (Macropus eugenii) Tissue." Cold Spring Harbor Protocols 2009, no. 12 (December 1, 2009): pdb.prot5338. http://dx.doi.org/10.1101/pdb.prot5338.

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47

Herbert, C. A., T. E. Trigg, M. B. Renfree, G. Shaw, D. C. Eckery, and D. W. Cooper. "Long-term effects of deslorelin implants on reproduction in the female tammar wallaby (Macropus eugenii)." Reproduction 129, no. 3 (March 2005): 361–69. http://dx.doi.org/10.1530/rep.1.00432.

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The contraceptive and endocrine effects of long-term treatment with implants containing the GnRH agonist deslorelin were investigated in female tammar wallabies (Macropus eugenii). Fertility was successfully inhibited for 515 ± 87 days after treatment with a 5 mg deslorelin implant (n= 7), while control animals gave birth to their first young 159 ± 47 days after placebo implant administration (n= 8). The duration of contraception was highly variable, ranging from 344 to 761 days. The strict reproductive seasonality in the tammar wallaby was maintained once the implant had expired. This inhibit

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48

Basden, K., D. W. Cooper, and E. M. Deane. "Development of the lymphoid tissues of the tammar wallaby Macropus eugenii." Reproduction, Fertility and Development 9, no. 2 (1997): 243. http://dx.doi.org/10.1071/r96032.

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A study has been made of the development of four lymphoid tissues from birth to maturity in the tammar wallaby Macropus eugenii —the cervical and thoracic thymus, lymph nodes and gut-associated lymphoid tissue (GALT). The development of these tissues in the tammar wallaby is similar to that in two other marsupials, the quokka Setonix brachyurus and the Virginian opossum Didelphis virginiana. Lymphocytes were first detected in the cervical thymus of the tammar at Day 2 post partum and in the thoracic thymus at Day 6. They were subsequently detected in lymph nodes at Day 4 and in the spleen by D

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49

Saunders, Norman R., Katarzyna M. Dziegielewska, Sophie C. Whish, Lyn A. Hinds, Benjamin J. Wheaton, Yifan Huang, Steve Henry, and Mark D. Habgood. "A bipedal mammalian model for spinal cord injury research: The tammar wallaby." F1000Research 6 (June 15, 2017): 921. http://dx.doi.org/10.12688/f1000research.11712.1.

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Background: Most animal studies of spinal cord injury are conducted in quadrupeds, usually rodents. It is unclear to what extent functional results from such studies can be translated to bipedal species such as humans because bipedal and quadrupedal locomotion involve very different patterns of spinal control of muscle coordination. Bipedalism requires upright trunk stability and coordinated postural muscle control; it has been suggested that peripheral sensory input is less important in humans than quadrupeds for recovery of locomotion following spinal injury. Methods: We used an Australian m

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50

Cheung, Timothy C., and John P. Hearn. "Molecular cloning and tissue expression of the gonadotrophin-releasing hormone receptor in the tammar wallaby (Macropus eugenii)." Reproduction, Fertility and Development 14, no. 3 (2002): 157. http://dx.doi.org/10.1071/rd01124.

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Gonadotrophin-releasing hormone (GnRH) plays a pivotal role in the endocrine control of both reproduction and embryonic development. This first study of the marsupial GnRH receptor (GnRH-R) gene in the tammar wallaby provides information on the complex molecular events that regulate hypothalamic-pituitary- gonadal function in marsupials, and allows a comparison with eutherian mammals. Two identical wallaby GnRH-R cDNA clones were obtained, one isolated from cDNA generated from the testis of a 79-day-old pouch young and the other from the pituitary of an adult. Wallaby GnRH-R is composed of 328

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