Research Background Statement
Monotremes have a reproductive system that appears unique as seen some mammals and reptilian. Also, monotremes have a chromosomal system that is unique in sex determination. Duck-billed platypus is one of the monotremes classified under egg-laying mammals. Genetics research in monotremes offers answers about genomic imprinting, dosage compensation, and sex determination in mammals.
The Hypothesis of the Research
Cultured platypus has low rate of survival in the areas that experiences high temperatures. Platypus has DMRT1, DMRT2 and DMRT3 genes which are used in genetics.
Studies have shown that temperature and culture medium affects the cultures of the monotreme platypus. Monotremes have a sex chromosome complex that lacks homologue (Bick, 1967). The culture of such organism has high sensitivity to both culture medium and temperature. Genetics studies have shown that the platypus has a specific ten sex chromosome as 5Y, 5Y. The Chromosomes occur in an alternating manner as X-Y translocation string in the case of male meiosis. The absence of a platypus SRY homologue leads to DMRT1 being responsible for sex determination gene (Sekido& Lovell-Badge, 2009).
Researchers have found out that medium of culture affects the culture of platypus amongst other monotremes. DMRT1 gene occurs next in other genes as DMRT2 and DMRT3 within a common conserved domain. An organization of DMRT1 followed by DMRT3 and then DMRT2 coming last is the commonly used in genetics (Kondo, et al., 2006). The genomic sequence in distantly and diverse species offers the application of comparison of genomics in the identification of how temperature and medium affect culture in such animals. Specifically, temperature affects the culture of the platypus as seen in the variation of the outcomes noted in different regions of the world. Results from previous studies have shown that regions with high temperatures have led to low survival chances of the cultured platypus (("Influence of Temperature and Congener Presence on Habitat Preference and Fish Predation in Blue ( Paralithodes Platypus Brandt, 1850 ) and Red ( P. Camtschaticus Tilesius, 1815) King Crabs (Anomura: Lithodidae) | Journal of Crustacean Biology | Oxford Academic," 2016)). The identification of unpaired platypus chromosomes during culture shows how temperature and medium affect the culture of the platypus.
References
Bick, Y. A. E. (1967). Cytological studies of marsupial and monotreme cells in tissue culture (Doctoral dissertation, University of Tasmania).
Influence of Temperature and Congener Presence on Habitat Preference and Fish Predation in Blue ( Paralithodes Platypus Brandt, 1850 ) and Red ( P. Camtschaticus Tilesius, 1815) King Crabs (Anomura: Lithodidae) | Journal of Crustacean Biology | Oxford Academic. (2016, January 1). Retrieved from https://academic.oup.com/jcb/article/36/1/12/2194831
Sekido, R., & Lovell-Badge, R. (2009). Sex determination and SRY: down to a wink and a nudge?. Trends in Genetics, 25(1), 19-29.
Kondo, M., Hornung, U., Nanda, I., Imai, S., Sasaki, T., Shimizu, A., ...&Schartl, M. (2006). Genomic organization of the sex-determining and adjacent regions of the sex chromosomes of medaka. Genome research, 16(7), 815-826.
Cite this page
Cytological Studies of Marsupial and Monotreme Cells in Tissue Culture. (2022, Jun 19). Retrieved from https://proessays.net/essays/cytological-studies-of-marsupial-and-monotreme-cells-in-tissue-culture
If you are the original author of this essay and no longer wish to have it published on the ProEssays website, please click below to request its removal:
- The Kidney Role in Homeostasis - Paper Example
- Essay Sample on Food Web
- Argumentative Essay: Animal Testing Should Be Forbidden
- Preserving Human Dignity: Human Reproductive Cloning
- Essay Sample on Mountain Formation: Orogeny, Volcanism & Tectonics
- Essay Example on 82% Decline in Wild Mammal Biomass: What Endangers Species?
- Paper Sample on Discrimination Training: Impact on Stimulus Simplification in Humans & Animals