Possum Development: Difference between revisions
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==System Development== | ==System Development== | ||
The marsupial neonate at birth has a variation between the degree of development of different systems. | The marsupial neonate at birth has a variation between the degree of development of different systems.{{#pmid:11999321|PMID11999321}} | ||
* well-developed - digestive, respiratory and circulatory system. | * well-developed - digestive, respiratory and circulatory system. | ||
* not well-developed - retains fetal excretory system with a fully functional mesonephric kidney and undifferentiated gonads and genitalia. | * not well-developed - retains fetal excretory system with a fully functional mesonephric kidney and undifferentiated gonads and genitalia. | ||
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===Ovarian Follicle Development=== | ===Ovarian Follicle Development=== | ||
Marsupial eggs are enclosed by a series of layers: | Marsupial eggs are enclosed by a series of layers:{{#pmid:10729728<|PMID10729728}} | ||
* zona pellucida, three zona proteins (ZPA, ZPB, ZPC) | * zona pellucida, three zona proteins (ZPA, ZPB, ZPC) | ||
*** an additional extracellular matrix coat that lines the zona pellucida also occurs in some species. | *** an additional extracellular matrix coat that lines the zona pellucida also occurs in some species. | ||
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:'''Links:''' | :'''Links:''' {{oocyte}} | ||
==Spermatozoa== | ==Spermatozoa== | ||
:'''Links:''' | :'''Links:''' {{spermatozoa}} | ||
==References== | ==References== | ||
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=== Reviews=== | === Reviews=== | ||
=== Articles=== | === Articles=== | ||
=== Books=== | === Books=== |
Revision as of 11:38, 24 April 2018
Embryology - 28 Apr 2024 Expand to Translate |
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Introduction
The possums (Phalangeridae) are a family of nocturnal semi-arboreal marsupials including the cuscuses, brushtail possums, and their close relatives.
Common brushtail possum (Trichosurus vulpecula)
Common ringtail possum (Pseudocheirus peregrines)
Australian Animal: echidna | kangaroo | koala | platypus | possum | Category:Echidna | Category:Kangaroo | Category:Koala | Category:Platypus | Category:Possum | Category:Marsupial | Category:Monotreme | Development Timetable | K12 | |||||
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Some Recent Findings
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More recent papers |
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This table allows an automated computer search of the external PubMed database using the listed "Search term" text link.
More? References | Discussion Page | Journal Searches | 2019 References | 2020 References Search term: Possum Embryology <pubmed limit=5>Possum Embryology</pubmed> |
Taxon
Taxonomy ID: 38626
Genbank common name: koala Inherited blast name: marsupials
Rank: species
Genetic code: Translation table 1 (Standard)
Mitochondrial genetic code: Translation table 2 (Vertebrate Mitochondrial)
Lineage ( full ) cellular organisms; Eukaryota; Opisthokonta; Metazoa; Eumetazoa; Bilateria; Deuterostomia; Chordata; Craniata; Vertebrata; Gnathostomata; Teleostomi; Euteleostomi; Sarcopterygii; Dipnotetrapodomorpha; Tetrapoda; Amniota; Mammalia; Theria; Metatheria; Diprotodontia
Development Overview
System Development
The marsupial neonate at birth has a variation between the degree of development of different systems.[3]
- well-developed - digestive, respiratory and circulatory system.
- not well-developed - retains fetal excretory system with a fully functional mesonephric kidney and undifferentiated gonads and genitalia.
Oocyte
Ovarian Follicle Development
Marsupial eggs are enclosed by a series of layers:PubmedParser error: Invalid PMID, please check. (PMID: < 10729728<)
- zona pellucida, three zona proteins (ZPA, ZPB, ZPC)
- an additional extracellular matrix coat that lines the zona pellucida also occurs in some species.
- mucoid coat
- outer shell coat.
- Links: oocyte
Spermatozoa
- Links: spermatozoa
References
- ↑ Keyte AL & Smith KK. (2010). Developmental origins of precocial forelimbs in marsupial neonates. Development , 137, 4283-94. PMID: 21098569 DOI.
- ↑ Haydon LJ, Juengel JL, Thomson BP & Eckery DC. (2008). Expression of mRNAs encoding oestrogen receptor (ER) alpha and ERbeta, androgen receptor and progesterone receptor during gonadal and follicular development in the marsupial brushtail possum (Trichosurus vulpecula). Reprod. Fertil. Dev. , 20, 335-49. PMID: 18402753
- ↑ Renfree MB, Pask AJ & Shaw G. (2001). Sex down under: the differentiation of sexual dimorphisms during marsupial development. Reprod. Fertil. Dev. , 13, 679-90. PMID: 11999321
Reviews
Articles
Books
Search PubMed
Search PubMed: Trichosurus vulpecula | Possum development | marsupial development
External Links
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Cite this page: Hill, M.A. (2024, April 28) Embryology Possum Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Possum_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G