Subscribe free to our newsletters via your




FLORA AND FAUNA
Aquatic plant has tiny genome but lots and lots of genes
by Brooks Hays
Buffalo, N.Y. (UPI) Feb 24, 2015


disclaimer: image is for illustration purposes only

Bladderworts are a genus of carnivorous plants that prefer freshwater environs or very wet soils. And as a new study finds, at least one bladderwort variety -- in terms of genomics, anyways -- does more with less.

Researchers at the University of Buffalo recently sequenced the genome of Utricularia gibba, one of the most common types of bladderworts called humped or floating bladderwort. Despite its many unique biological features, the quirky aquatic plant has a remarkably short genome.

Inside that short genome are the genetic sequences that enable its odd characteristics. Floating bladderwort forgoes roots, traps prey with vacuum pressure, sprouts small thread-like branches, puts off beautiful yellow flowers and does it all while thriving in aquatic environment.

As the bladderwort's odd lifestyle suggests -- and as the new analysis proved -- a short genome doesn't necessarily translate to a dearth of genetic material. Researchers found that despite its shrunken genome, floating bladderwort boasts more genes than a number of more common plants, including the grape, coffee or papaya plants.

The research suggests that humped bladderwort is more than just economical, it's the opposite of repetitive. It's idiosyncratic -- and especially fluctuant. And it is this variability that allowed the bladderwort to pack so much genetic code into such a small space.

"The story is that we can see that throughout its history, the bladderwort has habitually gained and shed oodles of DNA," study leader Victor Albert, a biologist at Buffalo, explained in a press release. "With a shrunken genome, we might expect to see what I would call a minimal DNA complement: a plant that has relatively few genes -- only the ones needed to make a simple plant. But that's not what we see."

But constantly deleting genes to make up for its genetic replications and adaptations, the floating bladderwort seems have become exceptionally good a ridding itself of junk DNA, sequences that have little to no genetic or biological value.

"When you have the kind of rampant DNA deletion that we see in the bladderwort, genes that are less important or redundant are easily lost," Albert said. "The genes that remain -- and their functions -- are the ones that were able to withstand this deletion pressure, so the selective advantage of having these genes must be pretty high."

"Accordingly, we found a number of genetic enhancements, like the meat-dissolving enzymes, that make Utricularia distinct from other species," Albert added.

While floating bladderwort contains only a small percentage of junk DNA, almost 90 percent of the human genome is made up of throwaway genes.

The new study was published this week in the journal Molecular Biology and Evolution.


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only


.


Related Links
Darwin Today At TerraDaily.com






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





FLORA AND FAUNA
Animals tend to evolve toward larger size over time
Stanford CA (SPX) Feb 20, 2015
Does evolution follow certain rules? If, in the words of the famed evolutionary biologist Stephen Jay Gould, one could "rewind the tape of life", would certain biological trends reemerge? Asked another way: can evolution be predicted? New research suggests that, for at least one important biological trait-body size-the answer is yes. In one of the most comprehensive studies of body s ... read more


FLORA AND FAUNA
Five wounded in second attack on aid vehicle in Myanmar

Improved fire detection with new ultra-sensitive, ultraviolet light sensor

Probe finds no fraud in World Bank Chinese loan deal

Fresh nuclear leak detected at Fukushima plant

FLORA AND FAUNA
China, Russia strengthen satellite navigation cooperation

India Interested in Russia's Glonass Satellite Navigation System

Latest Galileo satellites reach launch site

PLA drill applies China's own GPS

FLORA AND FAUNA
New insights into cellular mechanisms of information processing in brain

Can unemployment trigger personality changes?

Brain makes decisions with same method used to break WW2 Enigma code

Ancient and modern cities aren't so different

FLORA AND FAUNA
Hydrogel baits offer novel way to manage invasive ants

White sharks grow more slowly than previously thought

Amazonian bird chick mimics toxic caterpillar to avoid being eaten

Discovery: Tropical fire ants traveled the world on 16th century ships

FLORA AND FAUNA
Flu shot protects against new strain H7N9: study

New drug shields monkeys from AIDS: study

More infectious diseases emerging because of climate change

Death toll rises to 28 in Mozambique cholera epidemic

FLORA AND FAUNA
Hong Kong wishing tree draws tens of thousands of hopefuls

China man gets $189,000 for six years on death row

Big Yang Theory: Chinese year of the sheep or the goat?

China expels senior official from ruling party

FLORA AND FAUNA
Sagem-led consortium intoduces anti-piracy system

China arrests Turks, Uighurs in human smuggling plot: report

Two police to hang for murder in Malaysian corruption scandal

Nobel protester sought to draw attention to 'murdered Mexican students'

FLORA AND FAUNA
Japan household spending drops fastest in 8 years

China's Dagong cuts France's credit ratings

Alibaba staff denied traditional Chinese New Year gift by CEO

China bank loans surge in January: central bank




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news 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 All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.