[ASC-media] Corals adapting to global warming; get ready for science week stories

Niall Byrne niall at scienceinpublic.com.au
Thu Jun 25 17:18:25 PDT 2015



Corals adapting to global warming; get ready for science week stories




Dear ASC-ers,

Corals already have the genes to adapt to warmer oceans: a study published today in Science by researchers from the Australian Institute of Marine Science (AIMS) and international collaborators shows a genetic basis to temperature tolerance in coral. And it likely depends on 'mum's genes'.

Line Bay (AIMS) is available for interview by phone today or in person if you're Townsville-based on +61 (7) 4753 4179 or +61 (429) 185 497.

Full media release below<https://us1.admin.mailchimp.com/campaigns/preview-content-html?id=3166229#corals>, and you can access it along with background information, high res images and underwater footage of the reef at www.scienceinpublic.com.au/marine<http://www.scienceinpublic.com.au/marine>

National Science Week

Mark your diaries: National Science Week is coming up from August 15th - 23rd, Australia's annual celebration of science and technology. We'll be helping to promote the best stories and talent of the Week.
Here's a taste:

  *   astrophysicist, presenter of Cosmos, and 'world-recognised badass' Neil deGrasse Tyson will tour Melbourne, Brisbane, Sydney and Canberra
  *   astronaut and YouTube sensation Colonel Chris Hadfield is also touring Australia to present 'A Spaceman's View of the Planet'
  *   'Galaxy Explorer' will call on Australians to do real science from the comfort of their own homes, classifying galaxies to understand how they grow and evolve
  *   local events will bring science to the people - from wearable technology on the catwalk in Melbourne to robot soccer in Tasmania to 'Bio-Bounce', the biggest and bounciest plant cell (jumping castle) visiting Canberra.
Hundreds of events are registered, with dozens being added daily.
Organisers will register local event details online at www.scienceweek.net.au/<http://www.scienceweek.net.au/> and we'll let you know about events and stories relevant to your round/area.

Kind regards,

Niall






Corals already have the genes to adapt to warmer oceans

Townsville and Texas researchers discover a genetic basis to temperature tolerance in coral. And it likely depends on 'mum's genes'.

A team of Australian and US scientists have discovered that corals already have the genes to tolerate global warming. It may only be a matter of shuffling them to where they are most needed.

Migration and breeding may allow coral to adapt to hotter oceans, and offer a path for smarter reef conservation and restoration, according to a paper published today inScience by researchers from the Australian Institute of Marine Science (AIMS) and the University of Texas at Austin.

[https://gallery.mailchimp.com/d83751047dc5a93e0049c04bf/images/abcada0b-b9ba-4960-bc66-bd5ec995d6db.png]The team crossed individuals of branching coral Acropora millepora (pictured on right) from the far northern Great Barrier Reef with members of the same species at Orpheus Island, 540 km further south. They found that corals living in warmer waters on the north of the Great Barrier Reef pass on higher temperature tolerance to their offspring.

The study also suggests that 'Mum is best': coral larvae had up to a ten-fold increase in their chances of surviving heat stress, of which five-fold was contributed by the mother. A possible explanation was provided by genetic analysis: tolerant larvae had altered expression of genes working in mitochondria, the powerhouses of the cells that are inherited solely from mothers.

[https://gallery.mailchimp.com/d83751047dc5a93e0049c04bf/images/aaf6d1ef-2464-4e2d-a565-79d1c730c3c4.jpg]"This discovery adds to our understanding of the potential for coral on the Great Barrier Reef to cope with hotter oceans," says Dr Line Bay, an evolutionary ecologist from AIMS in Townsville and joint senior author on the paper (picture shows Line at work in the Far Northern Sector of the Great Barrier Reef).

"Averting coral extinction can begin with something as simple as exchange of coral immigrants across latitudes, which will happen naturally through larval dispersal but can be jump-started by humans moving adult corals," says Mikhail Matz, a professor of integrative biology at the University of Texas at Austin and co-lead author. "This is occasion for hope and optimism about coral reefs and the marine life that thrive there."

Potential applications include:

  *   Choosing heat-tolerant corals for artificial propagation and reef restoration
  *   Identifying reefs with heat-tolerant coral communities and protecting them so that they naturally repopulate other reefs
Before such steps are considered we need to learn much more about coral adaptability to be able to discriminate between 'winners' and 'losers' in the game of climate change. One of the first tasks would be to confirm the role of mitochondria in heat tolerance, which was suggested for the first time by this study.

This study is part of a broad body of work at AIMS into the ability of coral and coral communities to adapt to a changing climate and to cumulative impacts of stress factors such as heat, ocean acidity, sediment, and water quality.

This study was supported by funds from the US National Science Foundation and the Australian Institute of Marine Science.

For further information visit www.aims.gov.au<http://www.aims.gov.au/> and https://cns.utexas.edu<https://cns.utexas.edu/>.

For interviews:

  *   Dr Line Bay, Australian Institute of Marine Science, +61 7 47534179, +61 429185497, l.bay at aims.gov.au<mailto:l.bay at aims.gov.au>
  *   Dr Mikhail V. Matz, The University of Texas at Austin, +1 512 992 8086,matz at utexas.edu<mailto:matz at utexas.edu>
  *   Niall Byrne, Science in Public (for AIMS), niall at scienceinpublic.com.au<http://niall@scienceinpublic.com.au/>, +61 417 131 977
  *   Georgina Kenyon, AIMS, media at aims.gov.au<http://media@aims.gov.au/>, +61 7 4753 4264, +61 418 729 265
  *   Christine Sinatra, UT Austin, christine.sinatra at austin.utexas.edu<http://christine.sinatra@austin.utexas.edu/>, o. +1 512-471-4641, c. +1 512-853-0506






More about Science in Public

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Kind regards,
________

Niall Byrne

Creative Director
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