Navigation Links
Massive Daphnia genome leads to understanding gene-environment interactions
Date:2/4/2011

30,907 genes, compared to approximately 25,000 in humans.

Scientists have studied Daphnia for centuries because of its importance in aquatic food webs and for its transformational responses to environmental stress. Predators signal some of the animals to produce exaggerated spines, neck-teeth or helmets in self-defense. And like the virgin nymph of Greek mythology that shares its name, Daphnia thrives in the absence of males -- by clonal reproduction, until harsh environmental conditions favor the benefits of sex.

Arguably, more is known about the ecology and stress biology of the water flea than any other animal. The genome project was conceived with an expectation that many new gene functions would be uncovered when studied in light of the animal's natural environment -- not necessarily expecting to discover many more genes.

Yet, Daphnia's genome is no ordinary genome.

"Daphnia's high gene number is largely because its genes are multiplying, by creating copies at a higher rate than other species," said project leader and CGB genomics director John Colbourne. "We estimate a rate that is three times greater than those of other invertebrates and 30 percent greater than that of human."

"One theory is that Daphnia is so good at adapting to so many environments because it has this huge catalog of genes to call upon," says Thomas. The researchers note that more than one-third of Daphnia's genes are undocumented in any other organism they are completely new to science.

At UNH, where the relatively new field of environmental genomics is at the core of the HCGS mission, the Daphnia project resulted in productive collaborations around the university. "It was a significant part of starting many science careers," says Thomas, noting that many undergraduate, graduate and visiting students participated.

Jim Haney, professor of freshwater biology, helped with cultures
'/>"/>

Contact: Beth Potier
beth.potier@unh.edu
603-862-1566
University of New Hampshire
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Massive endocytosis in cells
2. Massive gene loss linked to pathogens stealthy plant-dependent lifestyle
3. Volcano fuels massive phytoplankton bloom
4. Massive coral mortality following bleaching in Indonesia
5. GM crop produces massive gains for womens employment in India
6. DOE, ORNL officially join NSF on massive ecological study
7. Protein extremes gain relevance in massive proteomic studies
8. Massive resources now directed at sustainable animal waste technology
9. Massive Southern Ocean current discovered
10. Cool new tools let public contribute to massive interactive online biodiversity encyclopedia
11. Study highlights massive imbalances in global fertilizer use
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/31/2015)... Growing need for data security ... projects to drive India biometrics market ... report, " India Biometrics Market Forecast & Opportunities, 2020 ", ... to grow at a CAGR of over 35% during 2015 ... of extensive use of biometric technology in the government sector. ...
(Date:8/31/2015)... -- Research and Markets ( http://www.researchandmarkets.com/research/st5b3m/saudi_arabia ) has announced ... Market - Growth, Trends & Forecasts (2014-2020)" report ... Biomedical Sensors market is estimated at $0.23 billion by ... 2014-2020 The near future will bring biomedical ... each individual. These sensors can be set to trigger ...
(Date:8/28/2015)... August 28, 2015 According to ... Market by Assessment Type (Pen & Paper Based, Hosted, ... Corporate Learning, Academic Research), Vertical and Region - Global ... Training Market to grow from USD 2.4 Billion in ... Compound Annual Growth Rate (CAGR) of 25.6% from 2015 ...
Breaking Biology News(10 mins):India Biometrics Market to Grow at Over 35% Through 2020, Says TechSci Research 2India Biometrics Market to Grow at Over 35% Through 2020, Says TechSci Research 3Saudi Arabia Biomedical Sensors Market Report 2015 - Growth, Trends & Forecasts (2014-2020) 2Cognitive Assessment and Training Market Worth 7.5 Billion USD by 2020 2Cognitive Assessment and Training Market Worth 7.5 Billion USD by 2020 3Cognitive Assessment and Training Market Worth 7.5 Billion USD by 2020 4
... at the Smithsonian,s National Zoo detected a secondary rise ... panda Mei Xiang (may-SHONG) earlier this month. The results ... to believe the hormone rise indicates that it would ... birth to a cub or comes to the end ...
... 20, 2008) The future of high-intensity x-ray science ... Department of Energy,s Argonne National Laboratory have devised a ... free electron laser oscillator (X-FELO) we are proposing can ... than currently operating machines," Argonne Distinguished fellow Kwang-Je Kim ...
... as temperatures warm along the East Coast of the ... less likely they are to keep pace with the ... the Manomet Center for Conservation Sciences analyzed changes in ... birds along the coast of eastern Massachusetts since 1970. ...
Cached Biology News:A novel X-ray source could be brightest in the world 2Birds migrate earlier, but some may be left behind as the climate warms rapidly 2
(Date:8/31/2015)... ... August 31, 2015 , ... ... bring together supply chain risk management and resiliency practitioners with luminaries and thought ... best practices, and be recognized for their innovations and performance excellence. At that ...
(Date:8/31/2015)... 2015 MabVax Therapeutics Holdings, Inc. (OTCQB: MBVX) ... Company,s lead antibody, HuMab 5B1, will be garnering major ... the upcoming World Molecular Imaging Congress (WMIC) being held ... Researchers from the Department of Radiology at Memorial Sloan ... use of MabVax,s lead antibody as a PET imaging ...
(Date:8/31/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/53wxp3/israel_biomedical ) ... Sensors Market - Growth, Trends & Forecasts (2014-2020)" ... Biomedical Sensors market is estimated at $0.19 billion by ... 2014-2020 The near future will bring biomedical ... each individual. These sensors can be set to trigger ...
(Date:8/31/2015)... 2015 /PRNewswire/ - Portage Biotech Inc. ("Portage" or "the ... pleased to announce that its wholly owned subsidiary, Portage ... PPL-003, to an Investigational New Drug (IND) application for ... PPL recently completed a study in a rat model ... highly significant efficacy and a more rapid onset of ...
Breaking Biology Technology:Global Supply Chain Resiliency Council Announces Incorporation and Web Site Launch 2Global Supply Chain Resiliency Council Announces Incorporation and Web Site Launch 3MabVax Therapeutics HuMab 5B1 Antibody Is Highlighted at Upcoming World Molecular Imaging Congress in Five Separate Presentations 2MabVax Therapeutics HuMab 5B1 Antibody Is Highlighted at Upcoming World Molecular Imaging Congress in Five Separate Presentations 3MabVax Therapeutics HuMab 5B1 Antibody Is Highlighted at Upcoming World Molecular Imaging Congress in Five Separate Presentations 4Israel Biomedical Sensors Market 2015 - Growth, Trends & Forecasts to 2020 2Portage's PPL will advance its lead candidate PPL-003 to an IND for dry eye disease and uveitis 2Portage's PPL will advance its lead candidate PPL-003 to an IND for dry eye disease and uveitis 3
... , , ... Corporation (Pink Sheets: CGCP), a market leader in laser transmyocardial ... (Investigational Device Exemption) to the Food and Drug Administration to ... with refractory angina. The PHOENIX Combination Delivery System combines ...
... TAINAN, Taiwan, July 30 /PRNewswire-Asia/ -- Eli Lilly ... today that they have,reached an amicable resolution of ... ScinoPharm,s manufacture and sale of gemcitabine,hydrochloride around the ... of the settlement, Lilly has granted ScinoPharm a ...
... LAUSANNE, Switzerland and MEDFORD, Massachussets, July 30 ... companies with a focus on the development of ... Protein Technologies (MSM), a human,antibody drug discovery company ... announce the signature of an exclusive,agreement for the ...
Cached Biology Technology:Cardiogenesis Corporation Makes Pre-IDE Submission for PHOENIX Combination Delivery System 2Eli Lilly & Company and ScinoPharm Taiwan Ltd. Announce Settlement of Gemcitabine Litigation 2Debiopharm and MSM Protein Technologies Sign Agreement for Research and Development of Debio 0929, a Novel Oncology Biologic 2Debiopharm and MSM Protein Technologies Sign Agreement for Research and Development of Debio 0929, a Novel Oncology Biologic 3Debiopharm and MSM Protein Technologies Sign Agreement for Research and Development of Debio 0929, a Novel Oncology Biologic 4