Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. Earth Science News .




WOOD PILE
Researchers identify genetic fingerprints of endangered conifers
by Staff Writers
Bochum, Germany (SPX) Dec 03, 2013


Podocarpus lambertii: This Podocarpus lives together with numerous epiphytes in the cloud forests of the Mata Atlantica in Brazil. It is listed as near-threatened in the Red List. Image couresy RUB, Foto: Knopf.

In the tropics and subtropics, many evergreen conifers are endangered. Biologists at the Ruhr-Universitat Bochum (RUB) have collected the world's largest Podocarpaceae collection.

Together with colleagues from The New York Botanical Garden, they sequenced characteristic parts of the DNA of these conifers in order to generate a "DNA barcode" for each species.

With the help of this genetic fingerprint, unknown individuals can be assigned to the respective Podocarpaceae species, which are often very similar in appearance. Thus, individuals of endangered populations can be identified more easily. The team reports in the journal "PLOS ONE".

Many Podocarpaceae are difficult or impossible to identify
"The distribution ranges of many Podocarpaceae are very small and often inhabited by only a few scattered individuals - unlike our native European conifer forests that cover large areas," says Dr Patrick Knopf from the RUB Department of Evolution and Biodiversity of Plants.

"There are only about ten individuals left of one species native to Fiji." In order to protect the few rare representatives of the endangered species, it is necessary to identify the species first.

"In case of Podocarpaceae, it is difficult or even impossible to identify them only by their appearance," explains the RUB biologist Dr Christian Schulz. "That's why we've launched the DNA barcoding project."

Propagating and exchanging of endangered species
The researchers from Bochum collected 320 individuals from 145 Podocarpaceae species on field trips to South America, South-East Asia, Australia, New Caledonia and Fiji.

At the Botanical Garden's Pfizer Plant Research Laboratory, they worked with Garden scientist Dr. Damon Little to generate DNA barcodes for all of the individuals, which they subsequently provided on the online platform "GenBank".

In addition, they created a living Podocarpaceae collection in the Botanic Garden of the Ruhr-Universitat which promotes the protection of rare and endangered species. The Bochum team propagate the species and pass them on to other botanic gardens worldwide.

Relevance in the timber industry and cancer research
Podocarpaceae constitute the second-largest conifer family. They grow mainly in mountainous regions in the Southern hemisphere.

The timber of many of the 198 species is of great economic interest because of its excellent insect and fungus resistance. Certain substances in their leaves, moreover, are playing an increasingly important role in cancer research. The Red List of Threatened Species (IUCN) currently includes 27 Podocarpaceae species. In total, 86 species are endangered.

D.P. Little, P. Knopf, C. Schulz (2013): DNA barcode identification of Podocarpaceae - the second largest conifer family, PLOS ONE, DOI: 10.1371/journal.pone.0081008

.


Related Links
Ruhr-Universitat
Forestry News - Global and Local News, Science and Application






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





WOOD PILE
Lowering stand density reduces mortality of ponderosa pine stands
Redding CA (SPX) Nov 29, 2013
As trees grow larger in even-aged stands, competition develops among them. Competition weakens trees, as they contend for soil moisture, nutrients, and sunlight. Competition also increases trees' risk to bark beetles and diseases, and subsequently leads to a buildup of dead fuels. A recent study, led by Dr. Jianwei Zhang, research forester at the U.S. Forest Service's Pacific Southwest Res ... read more


WOOD PILE
Late treatment for many Philippine typhoon victims: WHO

Human trafficking a worry in post-typhoon Philippines: US

China graft investigation into ex-head of quake city

UN to seek more aid for Philippines typhoon displaced

WOOD PILE
Google steps up its battle for Internet 'cloud'

Use of ancient lead in modern physics experiments ignites debate

Crippled space telescope given second life, new mission

Scientists create perfect solution to iron out kinks in surfaces

WOOD PILE
Microplastics make marine worms sick

Marine reserves enhance resilience to climate change

Malaysia tribe end protest as mega-dam floods their homes

Showdown looms for lucrative tuna industry

WOOD PILE
Arctic study shows key marine food web species at risk from increasing CO2

'Noisy' glaciers sound off as they melt into ocean waters

Russian court frees last Greenpeace activist

Greenland's shrunken ice sheet: We've been here before

WOOD PILE
Benefit of bees even bigger than thought: food study

Romania sees opportunity in China's new taste for meat

Flower Power - Researchers breed new varieties of chamomile

A plant which acclimatizes with no exterior influence

WOOD PILE
NASA's HS3 Hurricane Mission Called it a Wrap for 2013

What drives aftershocks?

Heavy rains, flooding leave two dead in Cuba

Weaker than expected Atlantic hurricane season ends

WOOD PILE
Mali defence minister vows to support coup leader's trial

French army buildup in CAR unlikely to quell bloodshed

Several said dead in air raid in Sudan's Darfur: peacekeepers

Nigeria military says bombed Boko Haram camps

WOOD PILE
Evidence of funerary meal found at 13,000-year-old gravesite in Israel

Skull find shows women were sacrificed in ancient China

Study suggests inbreeding shaped course of early human evolution

Investments in Aging Biology Research will Pay Longevity Dividend




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement