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:12/17/2014)... 16, 2014 Valencell, a leader in performance ... technology to industry leaders such as Intel, Jabra, Atlas, ... biometric wearable products. These products will be showcased at ... Las Vegas . "Our partners ... and robust – with the clinical data to back ...
(Date:12/11/2014)... 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has announced the addition ... Region 2015-2019"  report to their offering. ... is advances in technology. With continuous advances in ... to the latest standard that meets the needs ...
(Date:12/10/2014)... -- You,ve been here before: you desperately need to sign ... site key or the answer to your secret question. What,s ... Today, Hoyos Labs , a digital infrastructure ... put an end to the frustration that comes with usernames, ... leverages a user,s smartphone to acquire his or her biometrics ...
Breaking Biology News(10 mins):Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... it." The saying could apply especially to the brain ... studies have shown that keeping the mind active, exercising ... dementia in Alzheimer,s disease. Now, a new ... Center for Neurologic Diseases in the BWH Department of ...
... 5.8 million Americans suffer from heart failure, a currently ... Medicine,s (TUSM) Center for Translational Medicine have discovered a ... the development of new drugs to treat and possibly ... failure are not very effective," explained lead investigator Walter ...
... A team of European scientists from the University Medical Center ... Cellular Stress Responses in Aging-Associated Diseases (CECAD) at the ... closer to understanding the root cause of age-related dementia. In ... age-related dementia is likely the result of a declining ability ...
Cached Biology News:Use it or lose it 2Temple researchers discover key to heart failure, new therapies on horizon 2Temple researchers discover key to heart failure, new therapies on horizon 3Age-related dementia may begin with neurons' inability to dispose of unwanted proteins 2
(Date:12/24/2014)... December 23, 2014 Earlier this year ... L. Sherley, director of the Adult Stem Cell Technology ... often overlooked and under appreciated unique property of adult ... Distributed Stem Cells: Misunderstood in the Past, Important for ... congress participants. He gave the address at the ...
(Date:12/24/2014)... Dallas, Texas (PRWEB) December 23, 2014 ... on methyl mercaptan such as its definition, ... also presents product specification, manufacturing process, and ... regions, technology and applications. The analysis also ... survey, marketing channels, industry development trend and ...
(Date:12/24/2014)... BEIJING , Dec. 23, 2014 ... or the "Company"), a leading fully integrated plasma-based ... today announced that its majority-owned subsidiary, Shandong Taibang ... Practices ("GMP") certification from the China Food and ... factor production facility. As previously disclosed in the ...
(Date:12/24/2014)...  Rock Creek Pharmaceuticals, Inc., (NASDAQ: RCPI ... Trial Application (CTA) with the United Kingdom,s ... regulatory approval to initiate clinical trials for the continued ... Contingent on the Company receiving CTA regulatory approval, the ... assess the safety, tolerability and dose escalation of Anatabine ...
Breaking Biology Technology:Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4Worldwide Methyl Mercaptan Market 2015-2020 Forecasts on Development & Trends Now Available at ReportsnReports.com 2China Biologic Receives GMP Certification for New Coagulation Factor Facility 2China Biologic Receives GMP Certification for New Coagulation Factor Facility 3Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 2Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 3
... Nfocus device development team.PALO ALTO, Calif., April 30 ... today the appointment of accomplished regulatory executive Robert O,Holla ... President of Regulatory Affairs. "Bob O,Holla brings an unmatched ... , having served 18 of his last 30 years ...
... April 30 Idenix Pharmaceuticals, Inc. (Nasdaq: IDIX ... of drugs for the treatment of human viral diseases, today ... 31, 2009. At March 31, 2009, Idenix,s cash, cash equivalents ... , , ...
... Resonant Medical, an innovator in 3D ultrasound image-guided ... Stephen Whisenhunt to the position of Vice President ... the Company,s growing global sales team and manage ... years of radiation oncology industry experience to the ...
Cached Biology Technology:Nfocus Neuromedical Appoints Robert O'Holla to Head Regulatory 2Idenix Pharmaceuticals Reports First Quarter Financial Results 2Idenix Pharmaceuticals Reports First Quarter Financial Results 3Idenix Pharmaceuticals Reports First Quarter Financial Results 4Idenix Pharmaceuticals Reports First Quarter Financial Results 5Idenix Pharmaceuticals Reports First Quarter Financial Results 6Resonant Medical Expands Sales Organization with Appointment of Vice President of Global Sales and Marketing 2
... CLS number is a ... to easily match Cornings ... no availability yet, please ... Sigma-Aldrich number (Z71,381-3) or ...
... This CLS number is ... to easily match Cornings product ... yet, please order under the ... contact customer service for assistance. ...
... Anti-YAP Polyclonal Antibody ... purified rabbit polyclonal antibody. Detects 70 ... in Western blotting and immunohistochemistry. ... proliferation Storage: ...
... Stain for Mass Spectrometry Applications ,In ... (MS) has emerged as a powerful protein ... 2-D gels is now an important intermediate ... leads ultimately to identification of specific proteins ...
Biology Products: