Difference between revisions of "Coral restoration"

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(Section 1 Genetics)
(Section 1 Genetics)
 
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Include some current research, with at least one image.<br><br>
 
Include some current research, with at least one image.<br><br>
 
Hybridization creates new gene combinations and increases genetic diversity, which can possibly enhance adaptation under new environmental conditions. The fitness of a hybrid relative to the parental species can depend on the gene effect. If the gene effect is additive or over-dominant, the fitness of the hybrid is higher than one or both parents. There has been previous research to suggest that interspecific hybrid corals, particularly of Acropora, have had higher fitness than purebred corals and, in the lab, have shown resilience under elevated temperatures.  
 
Hybridization creates new gene combinations and increases genetic diversity, which can possibly enhance adaptation under new environmental conditions. The fitness of a hybrid relative to the parental species can depend on the gene effect. If the gene effect is additive or over-dominant, the fitness of the hybrid is higher than one or both parents. There has been previous research to suggest that interspecific hybrid corals, particularly of Acropora, have had higher fitness than purebred corals and, in the lab, have shown resilience under elevated temperatures.  
Research conducted recently at AIMS used seven parental species of Acropora to ask whether hybrid Acropora larvae had enhanced survivorship and settlement success compared to the purebreed larvae under ambient and elevated temperatures. There are barriers to fertilization however, called prezygotic barriers. This study in particular noted gametic incompatibility and temporal isolation as possible barriers preventing interspecific hybridization in the wild. In temporal isolation of coral, two populations cannot interbreed because they release their gametes at different times, i.e. ‘early spawners’ and ‘late spawners’. In this study, gametic incompatibility was a stronger barrier than temporal isolation and this strength varied between species pairs and the hybrid cross direction. Survival of the hybrid offspring groups was higher or equal to the purebreed offspring, although fertilization rates were lower. Hybrid offspring were also able to settle normally under elevated temperatures. Overall, hybrid offspring demonstrated resilience that could be useful in adapting to climate change. Further research is needed to assess the reproductive success of future hybrid generations. <ref>https://www.nature.com/articles/s41598-019-41190-5</ref>
+
Research conducted recently at AIMS used seven parental species of Acropora to ask whether hybrid Acropora larvae had enhanced survivorship and settlement success compared to the purebreed larvae under ambient and elevated temperatures. There are barriers to fertilization however, called prezygotic barriers. This study in particular noted gametic incompatibility and temporal isolation as possible barriers preventing interspecific hybridization in the wild. In temporal isolation of coral, two populations cannot interbreed because they release their gametes at different times, i.e. ‘early spawners’ and ‘late spawners’. In this study, gametic incompatibility was a stronger barrier than temporal isolation and this strength varied between species pairs and the hybrid cross direction. Survival of the hybrid offspring groups was higher or equal to the purebreed offspring, although fertilization rates were lower. Hybrid offspring were also able to settle normally under elevated temperatures. Overall, hybrid offspring demonstrated resilience that could be useful in adapting to climate change. Further research is needed to assess the reproductive success of future hybrid generations. <ref>https://www.nature.com/articles/s41598-019-41190-5 Chan, W.Y., Peplow, L.M. & Oppen, M.J.H. Interspecific gamete compatibility and hybrid larval fitness in reef-building corals: Implications for coral reef restoration. Sci Rep 9, 4757 (2019) doi:10.1038/s41598-019-41190-5</ref>
  
  

Latest revision as of 13:34, 8 November 2019

Introduction

Select a topic about genetics or evolution in a specific organism or ecosystem.
The topic must include one section about microbes (bacteria, viruses, fungi, or protists). This is easy because all organisms and ecosystems have microbes.

This page was created by Bella Stevens. I want to focus on coral restoration, particularly possible genetic applications and coral adaptation. In the microbe section I would discuss the role of
Symbiodinium, unicellular algae symbiotic with coral, in restoration.

Compose a title for your page.
Type your exact title in the Search window, then press Go. The MicrobeWiki will invite you to create a new page with this title.

Open the BIOL 116 Class 2019 template page in "edit."
Copy ALL the text from the edit window.
Then go to YOUR OWN page; edit tab. PASTE into your own page, and edit.


At right is a sample image insertion. It works for any image uploaded anywhere to MicrobeWiki. The insertion code consists of:
Double brackets: [[
Filename: PHIL_1181_lores.jpg
Thumbnail status: |thumb|
Pixel size: |300px|
Placement on page: |right|
Legend/credit: Electron micrograph of the Ebola Zaire virus. This was the first photo ever taken of the virus, on 10/13/1976. By Dr. F.A. Murphy, now at U.C. Davis, then at the CDC.
Closed double brackets: ]]

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Subscript: H2O
Superscript: Fe3+




Section 1 Genetics

Include some current research, with at least one image.

Hybridization creates new gene combinations and increases genetic diversity, which can possibly enhance adaptation under new environmental conditions. The fitness of a hybrid relative to the parental species can depend on the gene effect. If the gene effect is additive or over-dominant, the fitness of the hybrid is higher than one or both parents. There has been previous research to suggest that interspecific hybrid corals, particularly of Acropora, have had higher fitness than purebred corals and, in the lab, have shown resilience under elevated temperatures. Research conducted recently at AIMS used seven parental species of Acropora to ask whether hybrid Acropora larvae had enhanced survivorship and settlement success compared to the purebreed larvae under ambient and elevated temperatures. There are barriers to fertilization however, called prezygotic barriers. This study in particular noted gametic incompatibility and temporal isolation as possible barriers preventing interspecific hybridization in the wild. In temporal isolation of coral, two populations cannot interbreed because they release their gametes at different times, i.e. ‘early spawners’ and ‘late spawners’. In this study, gametic incompatibility was a stronger barrier than temporal isolation and this strength varied between species pairs and the hybrid cross direction. Survival of the hybrid offspring groups was higher or equal to the purebreed offspring, although fertilization rates were lower. Hybrid offspring were also able to settle normally under elevated temperatures. Overall, hybrid offspring demonstrated resilience that could be useful in adapting to climate change. Further research is needed to assess the reproductive success of future hybrid generations. [1]


Sample citations: [2] [3]

A citation code consists of a hyperlinked reference within "ref" begin and end codes.

Section 2 Microbiome

Include some current research, with a second image.

Conclusion

Overall text length should be at least 1,000 words (before counting references), with at least 2 images. Include at least 5 references under Reference section.


References

  1. https://www.nature.com/articles/s41598-019-41190-5 Chan, W.Y., Peplow, L.M. & Oppen, M.J.H. Interspecific gamete compatibility and hybrid larval fitness in reef-building corals: Implications for coral reef restoration. Sci Rep 9, 4757 (2019) doi:10.1038/s41598-019-41190-5
  2. Hodgkin, J. and Partridge, F.A. "Caenorhabditis elegans meets microsporidia: the nematode killers from Paris." 2008. PLoS Biology 6:2634-2637.
  3. Bartlett et al.: Oncolytic viruses as therapeutic cancer vaccines. Molecular Cancer 2013 12:103.


Edited by [Bella Stevens], student of Joan Slonczewski for BIOL 116 Information in Living Systems, 2019, Kenyon College.