Navigation Links
Pond-dwelling powerhouse's genome points to its biofuel potential
Date:2/19/2014

in many environments, unlike biofuel-producing microbes, duckweed plants are large enough to harvest easily.

S. polyrhiza turns out to have one of the smallest known plant genomes, at about 158 million base pairs and fewer than 20,000 protein-encoding genes. That's 27 percent fewer than Arabidopsis thaliana which, until recently, was believed to be the smallest plant genome and nearly half as many as rice plants.

"The most surprising find was insight into the molecular basis for genes involved in maturation a forever-young lifestyle," said senior author Joachim Messing, director of the Waksman Institute of Microbiology at Rutgers University.

S. polyrhiza leaves resemble cotyledons, embryonic leaves inside plant seeds that become the first leaves after germination. But where other plants develop other kinds of leaves as they mature, S. polyrhiza's never progresses and continuously produces cotyledon leaves. This prolonging of juvenile traits is called "neoteny." S. polyrhiza had fewer genes to promote and more genes to repress the switch from juvenile to mature growth.

"Because of the reduction in neoteny, there is an arrest in development and differentiation of organs. So this arrest allowed us to uncover regulatory networks that are required for differentiation and development," Messing said.

Also intriguing to the research team were which genes were preserved over time and which were not. Many of the genes responsible for cellulose and lignin production in land dwelling plants were missing, and there were fewer copies of those that were present. Genes for another compound related to cell walls called "expansins" which are involved with cell wall and root growth were also reduced.

Genes for starch production, on the other hand, were retained and are probably used for creating starch-filled turions, specialized buds produced by aquatic plants for overwintering, enabling them
'/>"/>

Contact: David Gilbert
degilbert@lbl.gov
925-296-5643
DOE/Joint Genome Institute
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Exercise targets cellular powerhouses to improve heart function
2. Genomes of Richard III and his proven relative to be sequenced
3. Genome editing goes hi-fi
4. Scientists invent advanced approach to identify new drug candidates from genome sequence
5. New method developed for ranking disease-causal mutations within whole genome sequences
6. New insight into an emerging genome-editing tool
7. Neanderthal lineages excavated from modern human genomes
8. Now Available -- Genome Stability: DNA Repair and Recombination by James E. Haber
9. UC Davis Purchases Irys System From BioNano Genomics To Advance Genome Mapping And Assembly Of Wheat Relative
10. Elephant shark genome provides new insights into bone formation and adaptive immunity in humans
11. First shark genome decoded
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Pond-dwelling powerhouse's genome points to its biofuel potential
(Date:8/21/2014)... fungus linked to dandruff, eczema and other itchy, flaky ... further global reachesincluding Hawaiian coral reefs and the extreme ... A review in the scientific journal PLOS Pathogens ... fungi of the genus Malassezia in light ... from around the world. , University of Hawai,i at ...
(Date:8/21/2014)... improving the food intake, health and quality of life ... three projects at the University of Waterloo receiving close ... of Health Research (CIHR). , Professor Heather Keller, ... and a Schlegel research chair in nutrition and aging, ... many Canadians living in long-term care homes are poorly ...
(Date:8/21/2014)... a finding that has implications for life in other ... the solar system, LSU Associate Professor of Biological Sciences ... Science Foundation, or NSF, this week published a paper ... that lies 800 meters (2600 feet) beneath the surface ... ecosystems.", Given that more than 400 subglacial lakes and ...
Breaking Biology News(10 mins):From dandruff to deep sea vents, an ecologically hyper-diverse fungus 2Grants will fund landmark aging research at Waterloo 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 3800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 4
... novel science 50 years ago when the American Society for ... drawing 844 researchers. This year over 7,000 scientists from ... in Philadelphia on Dec. 11 to 15 for ASCB,s 50th ... and disease through research on the cell, ASCB,s conferences are ...
... July 22 BIO-key International, Inc. (OTC Bulletin ...  today announced the company will be unveiling its first ... enterprises with the ability to capture and transmit fingerprint ... authentication of smartphone, laptop, tablet and desktop users on ...
... Massachusetts Medical School (UMMS) believe they may have found a ... of the retina that ultimately results in blindness. One ... by the death of photoreceptor cells and affects 1 in ... young adulthood as night blindness or a loss of peripheral ...
Cached Biology News:Cell biology society celebrates 50th 2BIO-key® to Unveil Enterprise Ready Biometric Identity Platform for Smartphones at the Burton Group Catalyst Conference 2BIO-key® to Unveil Enterprise Ready Biometric Identity Platform for Smartphones at the Burton Group Catalyst Conference 3BIO-key® to Unveil Enterprise Ready Biometric Identity Platform for Smartphones at the Burton Group Catalyst Conference 4BIO-key® to Unveil Enterprise Ready Biometric Identity Platform for Smartphones at the Burton Group Catalyst Conference 5BIO-key® to Unveil Enterprise Ready Biometric Identity Platform for Smartphones at the Burton Group Catalyst Conference 6BIO-key® to Unveil Enterprise Ready Biometric Identity Platform for Smartphones at the Burton Group Catalyst Conference 7BIO-key® to Unveil Enterprise Ready Biometric Identity Platform for Smartphones at the Burton Group Catalyst Conference 8Valproic acid shown to halt vision loss in patients with retinitis pigmentosa 2Valproic acid shown to halt vision loss in patients with retinitis pigmentosa 3
(Date:8/21/2014)... Rochelle, N.Y. (PRWEB) August 21, 2014 ... is the first private college in the Mid-Hudson Region ... College will now begin accepting applications from qualified “high-technology” ... , “We are very pleased to have been selected ... support Governor Cuomo’s transformative initiative to stimulate economic development ...
(Date:8/21/2014)... Aug. 21, 2014 OTC Markets ... Inc., a biotechnology company, on its approval to ... traded on OTCQX®, the best marketplace for established ... Group. Logo - http://photos.prnewswire.com/prnh/20110118/MM31963LOGO ... successful execution of its growth strategy and achievement ...
(Date:8/21/2014)... 21, 2014 Pursuit Solutions ( ... technology and services for Life Sciences sales and ... Use of New Commercial Sales Models” by Peter ... , The article examines some innovative models used ... being tested in the pharmaceutical market. Robinson grades ...
(Date:8/21/2014)... (PRWEB) August 21, 2014 ... has been recognized as one of the nation’s ... 5000 magazine for the 2nd consecutive year. Inc. ... 33rd annual Inc. 500|5000, an exclusive ranking of ... the most comprehensive look at the most important ...
Breaking Biology Technology:The College of New Rochelle Becomes First Private College in Mid-Hudson Region to Earn START-UP NY Designation 2The College of New Rochelle Becomes First Private College in Mid-Hudson Region to Earn START-UP NY Designation 3OTC Markets Group Congratulates Immune Pharmaceuticals on NASDAQ Listing 2Pursuit's Peter Robinson Publishes "Grading Pharma's Use of New Commercial Sales Models" 2SoundConnect Returns on Inc. 5000 List of Fastest Growing Companies 2SoundConnect Returns on Inc. 5000 List of Fastest Growing Companies 3
... Scribner isnt worried about attracting good workers to Procter & ... invest in the machinery, equipment and technology used by those ... facilities that produce Charmin and Bounty and Puffs have increased ... said Scribner, manager of the companys Green Bay plant. The ...
... direct-mail marketing, Middleton-based Customer Potential Management Group ... provider unexpected returns: Forty-six patients for a new ... net profit. CPM is a provider of relationship ... in variable digital imaging and predictive segmentation to ...
... GE Healthcare today announced a commitment of more than ... Cardiology through the ACC Foundation to fund and support ... of the three-year, $530,000 contribution will be to offer financial ... their training. , ,This awards program is an investment in ...
Cached Biology Technology:To attract investment, convince manufacturers that regulatory reform is real 2To attract investment, convince manufacturers that regulatory reform is real 3
... Bio (for heat-labile and very volatile solvents) ... specific applications of molecular biology and biochemistry ... samples. The RC systems can be expanded ... a wide selection of rotors (eliminating sample ...
... unit ideal for use in laboratories with low ... set at 12 rpm , Temperature control ... capacity of four 35 x 150mm bottles, eight ... , Consistent, repeatable results achieved with microprocessor ...
... is the latest edition to the famous ... an extra large diameter exhaust port for ... panel allows precise setting and control of ... handling large quantities and samples , ...
... SPD101B is a no-frills, basic SpeedVac concentrator ... economically priced, this unit still features a ... digitial display of time and heat. It ... and accepts a wide variety of different ...
Biology Products: