Bat Development: Difference between revisions
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== Introduction == | == Introduction == | ||
[[File:Bat_icon.jpg|thumb|Short-tailed fruit bat Carollia perspicillata (embryonic stage 19)<ref name="PMID15861401"><pubmed>15861401</pubmed></ref>]] | [[File:Bat_icon.jpg|thumb|300px|alt=Short-tailed fruit bat Carollia perspicillata |Short-tailed fruit bat Carollia perspicillata (embryonic stage 19)<ref name="PMID15861401"><pubmed>15861401</pubmed></ref>]] | ||
The bat (''chiroptera'') family consists of about 1,000 species throughout the world today (90 in Australia) and is not a common model of mammalian embryonic development. | The bat (''chiroptera'') family consists of about 1,000 species throughout the world today (90 in Australia) and is not a common model of mammalian embryonic development. | ||
The taxon chiroptera can also be further divided into the Megachiroptera (flying foxes) and Microchiroptera suborders. Echolocation sounds have been shown to differ in Microchiroptera (vocal cords) and Megachiroptera (tongue clicks). | The taxon chiroptera can also be further divided into the Megachiroptera (flying foxes) and Microchiroptera suborders. Echolocation sounds have been shown to differ in Microchiroptera (vocal cords) and Megachiroptera (tongue clicks). | ||
:{{Bat images}} | [[Abnormal_Development_-_Viral_Infection#Hendra_Virus|Hendra Virus]] | [[:Category:Bat|Category:Bat]] | |||
==Some Recent Findings== | ==Some Recent Findings== | ||
{| | {| | ||
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* '''Digital gene expression tag profiling of bat digits provides robust candidates contributing to wing formation''' <ref name="PMID21054883"><pubmed>21054883</pubmed></ref> "As the only truly flying mammals, bats use their unique wing - consisting of four elongated digits (digits II-V) connected by membranes - to power their flight. In addition to the elongated digits II-V, the forelimb contains one shorter digit (digit I) that is morphologically similar to the hindlimb digits. Here, we capitalized on the morphological variation among the bat forelimb digits to investigate the molecular mechanisms underlying digit elongation and wing formation." | * '''Digital gene expression tag profiling of bat digits provides robust candidates contributing to wing formation''' <ref name="PMID21054883"><pubmed>21054883</pubmed></ref> "As the only truly flying mammals, bats use their unique wing - consisting of four elongated digits (digits II-V) connected by membranes - to power their flight. In addition to the elongated digits II-V, the forelimb contains one shorter digit (digit I) that is morphologically similar to the hindlimb digits. Here, we capitalized on the morphological variation among the bat forelimb digits to investigate the molecular mechanisms underlying digit elongation and wing formation." | ||
|} | |} | ||
{| class="wikitable mw-collapsible mw-collapsed" | |||
! More recent papers | |||
|- | |||
| [[File:Mark_Hill.jpg|90px|left]] {{Most_Recent_Refs}} | |||
Search term: [http://www.ncbi.nlm.nih.gov/pubmed/?term=Fruit+Bat+Embryology ''Fruit Bat Embryology''] | |||
<pubmed limit=5>Fruit Bat Embryology</pubmed> | |||
|} | |||
==Taxon== | ==Taxon== | ||
[[File:Adult bat - rhinolophus smithersi.jpg|thumb|Bat - ''rhinolophus smithersi'']] | [[File:Adult bat - rhinolophus smithersi.jpg|thumb|Bat - ''rhinolophus smithersi'']] | ||
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==Species Comparison== | ==Species Comparison== | ||
{| | |||
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===Carollia perspicillata=== | ===Carollia perspicillata=== | ||
* (short-tailed fruit bat) Ovulation has a 24 hour variation with up to 2 days of variation in oviduct transit time, and gestation period is 113 - 120 days. | * (short-tailed fruit bat) Ovulation has a 24 hour variation with up to 2 days of variation in oviduct transit time, and gestation period is 113 - 120 days. | ||
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===Myotis thysanodes and M. lucifugus=== | ===Myotis thysanodes and M. lucifugus=== | ||
* Ovulation, fertilization, and implantation occur during the first 2 weeks of May and gestation is 50 - 60 days for both species. | * Ovulation, fertilization, and implantation occur during the first 2 weeks of May and gestation is 50 - 60 days for both species. | ||
| width=240px|<mediaplayer width='220' height='250' image="http://php.med.unsw.edu.au/embryology/images/1/15/Bat_icon.jpg">file:Bat embryo stage 19.mp4</mediaplayer> | |||
Bat embryo (stage 19) | |||
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==Embryonic Stages - Carollia perspicillata== | ==Embryonic Stages - Carollia perspicillata== | ||
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'''Search Pubmed:''' [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=bat%20development bat development] | [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=chiroptera%20development chiroptera development] | '''Search Pubmed:''' [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=bat%20development bat development] | [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=chiroptera%20development chiroptera development] | ||
==Additional Images== | |||
<gallery> | |||
File:Limb comparison cartoon 01.jpg|Image - Limb comparisons | |||
File:Limb comparison cartoon 02.jpg|Image - Limb comparison cartoon | |||
File:Bat and mouse limb comparison.jpg|Image - Bat and Mouse limbs | |||
</gallery> | |||
==External Links== | ==External Links== | ||
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{{ | {{Animals}} | ||
{{Glossary}} | |||
{{ | {{Footer}} | ||
[[Category:Bat]] | [[Category:Bat]] |
Revision as of 13:53, 16 October 2014
Embryology - 19 Apr 2024 Expand to Translate |
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Introduction
The bat (chiroptera) family consists of about 1,000 species throughout the world today (90 in Australia) and is not a common model of mammalian embryonic development.
The taxon chiroptera can also be further divided into the Megachiroptera (flying foxes) and Microchiroptera suborders. Echolocation sounds have been shown to differ in Microchiroptera (vocal cords) and Megachiroptera (tongue clicks).
- Bat Images: Craniofacial Development Carollia perspicillata Stage 10-13 | Stage 12-17 | Stage 18-23 | Miniopterus schreibersii fuliginosus Stage 13-17 | Limb Stage 13-17 | Limb Growth Stage 13-17 | Stage 18-23 | Hipposideros pratti Stage 11-22 | Hendra Virus | Category:Bat
Some Recent Findings
|
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: Fruit Bat Embryology <pubmed limit=5>Fruit Bat Embryology</pubmed> |
Taxon
Chiroptera
Genbank common name: bats
Taxonomy Id: 9397 Rank: order
Genetic code: Translation table 1 (Standard)
Mitochondrial genetic code: Translation table 2 (Vertebrate Mitochondrial)
Lineage( abbreviated ): Eukaryota; Fungi/Metazoa group; Metazoa; Eumetazoa; Bilateria; Coelomata; Deuterostomia; Chordata; Craniata; Vertebrata; Gnathostomata; Teleostomi; Euteleostomi; Sarcopterygii; Tetrapoda; Amniota; Mammalia; Theria; Eutheria; Laurasiatheria
Species Comparison
Carollia perspicillata
Myotis thysanodes and M. lucifugus
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<mediaplayer width='220' height='250' image="http://php.med.unsw.edu.au/embryology/images/1/15/Bat_icon.jpg">file:Bat embryo stage 19.mp4</mediaplayer>
Bat embryo (stage 19) |
Embryonic Stages - Carollia perspicillata
Stage |
Key features |
Somites |
Age |
Uterus diameter |
Crown-rump length |
Mass |
12 |
Forelimb buds form; tail bud forms; caudal neuropore closes; 3 pharyngeal arches. |
21-29 |
40 |
5.75 |
3.4 |
4.3 |
14 |
Retinal pigment; nasal pits; end of somitogenesis; propatagium and plagiopatagium primordia; hindlimb AER. |
36-40 |
44 |
6.95 |
5.35 |
24.6 |
15 |
Hand plate and footplate form; lens vesicle; auditory hillocks; premaxillary centers. |
46 |
8.65 |
7.45 |
56 | |
16 |
Nose-leaf primordium; pinna and tragus form; forelimb digital condensations, uropatagium primordium. |
50 |
12.06 |
8.66 |
110 | |
17 |
Tongue protruding; cervical flexure straightens; hindlimb interdigit tissue receding; eyes begin to close. |
54 |
13.45 |
9.15 |
114 | |
18 |
Free thumb; head and body smoother, rounder; eyes half-closed; postaxial flexure at wrist; calcar. |
60 |
16.32 |
12.35 |
278 | |
20 |
Distal forelimbs overlap over face; head larger; eyelids cover pigmented retina; claw primordia form. |
70 |
20.0 |
16.35 |
617 | |
22 |
Prominent, triangular nose-leaf; eyelids reopening; wing membranes corrugated; claws pigmented, hooked. |
80 |
23.03 |
20.02 |
1527 | |
24 |
Fetal period commences; eyes completely open; face and nose-leaf pigmenting. |
90 |
23.53 |
21.13 |
2097 |
(Values are mean n= 2-6, +/- standard deviation, original table contains more detailed data)
Thanks to Prof Richard Behringer and Dr Chris J. Creteko Dept. of Molecular Genetics, University of Texas M. D. Anderson Cancer Center, who provided images and stage information on the embryonic development of the Carollia perspicillata bat.
Embryonic Stages
Miniopterus schreibersii fuliginosus
Limb Development
Images of the bat embryo Miniopterus schreibersii fuliginosus at embryonic Stages 13-17.[5]
Bat - adult and fetal limbs[4]
A - Left limbs of adult Myotis ricketti. DI, DII, DIII, DIV and DV represent digits I-V of the forelimb
B, C - Left limbs of Miniopterus schreibersii fuliginosus in the Fetal Stage as an example of samples used for the Myotis ricketti libraries. Libraries Hand DI and Hand DII-V are constructed from forelimb digit I and digits II-V, respectively. Library Foot is constructed from hindlimb digits I-V.
Bar = 1 cm in A; bar = 1 mm in B and C.
Neural Development
The short-tailed fruit bat Carollia perspicillata Stage 14 embryo nervous system as identified by neurofilament antibody (brown) staining. Neurofilament is an intermediate filament protein, forming part of the neuronal cytoskeleton.
Historic Images
Abnormalities
Hendra Virus
- Hendra virus is a paramyxoviridae (ssRNA negative-strand virus) that mainly infects large fruit bats (flying foxes) which can be passed on to horses.
- The infection has occasionally been passed onto people who have been in close contact with an infected horse.
- There is evidence of fetal and placental infection in flying fox[6] and animal models.[7]
- There is currently insufficient information to determine whether there are developmental effects in humans.
- Links: NSW Public Health Sheet 2011 | Viralzone - Paramyxoviridae | Genome | Abnormal Development - Viral Infection
Rabies Virus
Rabies is a fatal encephalitis that can infect humans and is caused by lyssaviruses. Lyssavirus circulation has emerged in Southeast Asian bats.[8]
References
- ↑ 1.0 1.1 <pubmed>15861401</pubmed>
- ↑ <pubmed>21337714</pubmed>
- ↑ <pubmed>21085717</pubmed>
- ↑ 4.0 4.1 <pubmed>21054883</pubmed>
- ↑ <pubmed>20092640</pubmed>| PMC: 2824742 | BMC Dev Biol.
- ↑ <pubmed>18198149</pubmed>
- ↑ <pubmed> 10684689</pubmed>
- ↑ <pubmed>21738801</pubmed>| PLoS Negl Trop Dis.
Reviews
<pubmed>18163246</pubmed> <pubmed>18160799</pubmed> <pubmed>9293029</pubmed> <pubmed>8371094</pubmed>
Articles
<pubmed>15733311</pubmed> <pubmed>8783180</pubmed>
Search Pubmed: bat development | chiroptera development
Additional Images
External Links
External Links Notice - The dynamic nature of the internet may mean that some of these listed links may no longer function. If the link no longer works search the web with the link text or name. Links to any external commercial sites are provided for information purposes only and should never be considered an endorsement. UNSW Embryology is provided as an educational resource with no clinical information or commercial affiliation.
- University of Michigan, Museum of Zoology Animal Diversity - Order Chiroptera
- The University of Texas, Department of Molecular Genetics Richard R. Behringer Lab
- Developmental Dynamics Poster of Bat Development PDF
- The University Queensland, Vision Touch and Hearing Research Centre Prof Jack Pettigrew |
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Cite this page: Hill, M.A. (2024, April 19) Embryology Bat Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Bat_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G