Talk:Seahorse Development
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Cite this page: Hill, M.A. (2024, April 19) Embryology Seahorse Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Talk:Seahorse_Development |
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Note - This sub-heading shows an automated computer PubMed search using the listed sub-heading term. References appear in this list based upon the date of the actual page viewing. Therefore the list of references do not reflect any editorial selection of material based on content or relevance. In comparison, references listed on the content page and discussion page (under the publication year sub-headings) do include editorial selection based upon relevance and availability. (More? Pubmed Most Recent)
Syngnathidae Development
<pubmed limit=5>Syngnathidae Development</pubmed>
Seahorse Development
<pubmed limit=5>Seahorse Development</pubmed>
Pipefish Development
<pubmed limit=5>Pipefish Development</pubmed>
Seadragon Development
<pubmed limit=5>Seadragon Development</pubmed>
Common Name - Seahorse
| Country | Species |
|---|---|
| Cuba | Hippocampus erectus |
| Malaysia | Hippocampus erectus |
| Malaysia | Hippocampus histrix |
| Malaysia | Hippocampus kuda |
| Malaysia | Hippocampus spinosissimus |
| Malaysia | Hippocampus barbouri |
| Malaysia | Hippocampus comes |
| Azores Islands | Hippocampus histrix |
| Puerto Rico | Hippocampus reidi |
| St Helena | Hippocampus erectus |
| United Kingdom | Hippocampus guttulatus |
Table data from Fishbase.[1]
2013
2012
Standardised classification of pre-release development in male-brooding pipefish, seahorses, and seadragons (Family Syngnathidae)
BMC Dev Biol. 2012 Dec 29;12:39. doi: 10.1186/1471-213X-12-39.
Sommer S, Whittington CM, Wilson AB. Source Institute of Evolutionary Biology and Environmental Studies, University of Zürich, Winterthurerstrasse 190, Zürich, CH-8057, Switzerland. stefan.sommer@ieu.uzh.ch.
Abstract
BACKGROUND: Members of the family Syngnathidae share a unique reproductive mode termed male pregnancy. Males carry eggs in specialised brooding structures for several weeks and release free-swimming offspring. Here we describe a systematic investigation of pre-release development in syngnathid fishes, reviewing available data for 17 species distributed across the family. This work is complemented by in-depth examinations of the straight-nosed pipefish Nerophis ophidion, the black-striped pipefish Syngnathus abaster, and the potbellied seahorse Hippocampus abdominalis.
RESULTS: We propose a standardised classification of early syngnathid development that extends from the activation of the egg to the release of newborn. The classification consists of four developmental periods - early embryogenesis, eye development, snout formation, and juvenile - which are further divided into 11 stages. Stages are characterised by morphological traits that are easily visible in live and preserved specimens using incident-light microscopy.
CONCLUSIONS: Our classification is derived from examinations of species representing the full range of brooding-structure complexity found in the Syngnathidae, including tail-brooding as well as trunk-brooding species, which represent independent evolutionary lineages. We chose conspicuous common traits as diagnostic features of stages to allow for rapid and consistent staging of embryos and larvae across the entire family. In view of the growing interest in the biology of the Syngnathidae, we believe that the classification proposed here will prove useful for a wide range of studies on the unique reproductive biology of these male-brooding fish.
2007
Male pregnancy in seahorses and pipefish: beyond the mammalian model
Bioessays. 2007 Sep;29(9):884-96.
Stölting KN, Wilson AB. Source Zoological Museum, University of Zürich, Switzerland.
Abstract
Pregnancy has been traditionally defined as the period during which developing embryos are incubated in the body after egg-sperm union. Despite strong similarities between viviparity in mammals and other vertebrate groups, researchers have historically been reluctant to use the term pregnancy for non-mammals in recognition of the highly developed form of viviparity in eutherians. Syngnathid fishes (seahorses and pipefishes) have a unique reproductive system, where the male incubates developing embryos in a specialized brooding structure in which they are aerated, osmoregulated, protected and likely provisioned during their development. Recent insights into physiological, morphological and genetic changes associated with syngnathid reproduction provide compelling evidence that male incubation in these species is a highly specialized form of reproduction akin to other forms of viviparity. Here, we review these recent advances, highlighting similarities and differences between seahorse and mammalian pregnancy. Understanding the changes associated with the parallel evolution of male pregnancy in the two major syngnathid lineages will help to identify key innovations that facilitated the development of this unique form of reproduction and, through comparison with other forms of live bearing, may allow the identification of a common set of characteristics shared by all viviparous organisms.
PMID 17691105
2001
Male pregnancy in seahorses and pipefishes (family Syngnathidae): rapid diversification of paternal brood pouch morphology inferred from a molecular phylogeny
J Hered. 2001 Mar-Apr;92(2):159-66.
Wilson AB, Vincent A, Ahnesjö I, Meyer A. Source Department of Biology, University of Konstanz, Germany.
Abstract
In contrast to the majority of vertebrate species, primary male parental care is common in fishes and encompasses a remarkable diversity of adaptations. Seahorses and pipefishes (Family Syngnathidae) exhibit some of the most specialized forms of paternal care in animals and so are ideally suited to the study of the evolution of male parental care. During mating, female syngnathids transfer eggs to specialized morphological structures that are located on either the abdomen or tail of the male. The male provides all postfertilization parental care and has morphological and physiological adaptations to osmoregulate, aerate, and even nourish the developing embryos. While all syngnathid species are adapted for paternal care, the brooding structure with which this is accomplished varies between species, from simple ventral gluing areas to much more complex structures such as the completely enclosed pouches of the seahorses. Our combined cytochrome b-, 12S rDNA-, and 16S rDNA-based molecular phylogeny of syngnathid fishes demonstrates that rapid diversification of male brooding structures has been associated with the major evolutionary radiation of the group, suggesting that development and diversification of structures involved in paternal care may have been key evolutionary innovations of the Syngnathidae. Molecular analyses also highlight geographical centers of biodiversity and suggest interoceanic migration of Syngnathus pipefishes from their center of origin in the Pacific.
PMID 11396574
