Navigation Links
The most genes in an animal? Tiny crustacean holds the record
Date:2/8/2011

Scientists have discovered that the animal with the most genes--about 31,000--is the near-microscopic freshwater crustacean Daphnia pulex, or water flea.

By comparison, humans have about 23,000 genes. Daphnia is the first crustacean to have its genome sequenced.

The water flea's genome is described in a Science paper published this week by members of the Daphnia Genomics Consortium, an international network of scientists led by the Center for Genomics and Bioinformatics (CGB) at Indiana University (IU) Bloomington and the U.S. Department of Energy's Joint Genome Institute.

"Daphnia's high gene number is largely because its genes are multiplying, 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 humans."

"This analysis of the Daphnia genome significantly advances our understanding of how an organism's genome interacts with its environment both to influence genome structure and to confer ecological and evolutionary success," says Saran Twombly, program director in the National Science Foundation (NSF)'s Division of Environmental Biology, which funded the research.

"This gene-environment interplay has, to date, been studied in model organisms under artificial, laboratory conditions," says Twombly.

"Because the ecology of Daphnia pulex is well-known, and the organism occurs abundantly in the wild, this analysis provides unprecedented insights into the feedback between genes and environment in a real and ever-changing environment."

Daphnia's genome is no ordinary genome.

What reasons might Daphnia have so many genes compared to other animals?

A possibility, Colbourne said, is that "since the majority of duplicated and unknown genes are sensitive to environmental conditions, their accumu
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Genes of the immune system are associated with increased risk of mental illness
2. Johns Hopkins researchers capture jumping genes
3. Animal with the most genes? A tiny crustacean
4. Seeking social genes
5. Wheat resistance genes failing, new approach needed to stop flies
6. TGen and Genomic Health Inc. discover genes affecting cancer drug
7. Technique allows researchers to identify key maize genes for increased yield
8. New user-friendly resource connects human genes to biological functions
9. CHOP-led study detects dozens of genes for adult height
10. Longevinex exerts greater influence over genes than resveratrol
11. Green genes in yeast may boost biofuel production by increasing stress tolerance
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The most genes in an animal? Tiny crustacean holds the record
(Date:7/25/2014)... Birla, associate professor of biomedical engineering at the ... on tissue engineering and artificial organ development., "Introduction ... comprehensive guide to entering into the field of ... professor of biomedical engineering at UH, served as ... that while there are other published books on ...
(Date:7/25/2014)... New research at the University of Adelaide has opened the ... resistance to powdery mildew. , In Australia, annual barley production ... year. Powdery mildew is one of the most important diseases ... team have discovered the composition of special growths on the ... the fungus into the leaf. , The research, by the ...
(Date:7/25/2014)... Spina bifda (SB) is a complex congenital central ... incomplete closing of the neural tubes during the ... spasticity, urinary and fecal incontinence and neurocognitive retardation. ... their quality of life. Researchers at Ankara Physical ... investigate the functional performance in children with SB, ...
Breaking Biology News(10 mins):University of Houston researcher publishes textbook on tissue engineering 2New hope for powdery mildew resistant barley 2
... Rochelle, NY, September 4, 2012The use of RNA in ... the development of new therapeutic compounds. Key technical challenges ... the use of RNA molecules in nanotechnology approaches are ... Therapeutics , a peer-reviewed journal from Mary Ann ...
... WHOI geologist Liviu Giosan first reconstructed the history of how ... a puzzle. In the delta,s early stages of development, ... the delta expanded onto the Black Sea shelf in the ... rather than seeing the decline in sediment storage that he ...
... the rules for publication of scientific zoological names ... meet the requirements of the stringent <A target="_blank" ... 4th of September, the International Commission ... an amendment that considers a publication in a ...
Cached Biology News:Human impact felt on Black Sea long before industrial era 2Human impact felt on Black Sea long before industrial era 3Human impact felt on Black Sea long before industrial era 4Zoologists are no longer restricted to publish new species on paper 2
(Date:7/28/2014)... BRISBANE, Calif. , July 28, 2014  InterMune, ... it will release its second quarter 2014 financial results ... August 6, 2014. A live conference call and webcast will ... that same day. Interested investors and others ... (U.S.) or +1 212-231-2900 (international), conference ID#21728775. A replay of ...
(Date:7/26/2014)... Canada Endoscopy Visualization Systems Market Outlook ... Canada Endoscopy Visualization Systems market. The report provides ... units) and average prices (in US dollars) within ... Endoscopy Visualization Systems and Low-End Endoscopy Visualization Systems. ... , The report also provides company shares and ...
(Date:7/25/2014)... from the University of Leicester has furthered our ... potential to create new materials using nanosized ,building ... in the prestigious academic journal Physical Review ... examine in rich detail the structure and internal ... acetylene molecule and a single helium atom. , ...
(Date:7/25/2014)... (PRWEB) July 25, 2014 The Conferee ... for Topics for Conferee Networking. These two-hour sessions provide ... to meet and resolve problems, discuss new techniques, or ... deadline to submit a topic for consideration is August ... pittcon.org . The Conferee Networking committee will review the ...
Breaking Biology Technology:InterMune to Release Second Quarter Financial Results on August 6 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 3Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 4Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 5Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 3Pittcon 2015 Announces Call for Topics for Conferee Networking Sessions 2
... 2012   Veracyte, Inc ., a molecular diagnostics ... today announced that Palmetto GBA, a national contractor ... the company,s Afirma Gene Expression Classifier for use ... genomic test is now accessible to 40 million ...
... Biotherapeutics (OTC.BB: NWBO) (NW Bio) today announced that it successfully ... open and recruiting by the end of Q4, 2011, in ... for Glioblastoma multiforme (GBM), the most lethal form of brain ... had set for the two preceding quarters (Q2 and Q3, ...
... LAWRENCE, Mass., Jan. 9, 2012 NxStage Medical, Inc. (Nasdaq: ... products, today announced that its Medisystems in-center business and B. ... under which Medisystems will supply B. Braun with its Streamline ... Braun Dialog ® and Dialog +® hemodialysis systems, ...
Cached Biology Technology:Veracyte Announces Medicare Coverage for Its Afirma® Gene Expression Classifier for Improved Thyroid Nodule Diagnosis 2Veracyte Announces Medicare Coverage for Its Afirma® Gene Expression Classifier for Improved Thyroid Nodule Diagnosis 3NW Bio Reaches 25 Clinical Trial Sites Open and Recruiting By the End of Q4, 2011 2NW Bio Reaches 25 Clinical Trial Sites Open and Recruiting By the End of Q4, 2011 3NW Bio Reaches 25 Clinical Trial Sites Open and Recruiting By the End of Q4, 2011 4NxStage Extends Agreement to Supply Streamline Bloodlines, MasterGuard and Buttonhole Needle Technology to B. Braun 2NxStage Extends Agreement to Supply Streamline Bloodlines, MasterGuard and Buttonhole Needle Technology to B. Braun 3
...
... Calmodulin Sepharose 4B, ... single-step purification of ... proteins.Purification of calmodulin-regulated ... eukaryotic cells. Category: ...
... The PinPoint™ Vector Sequencing Primer is ... PinPoint™ Xa Vectors (Cat.# V2031, V2051, V2061). ... Xa site at nucleotides 325343, approximately 4050 ... region and can be used to determine ...
Medium for cryopreserving subcutaneous or omental preadipocytes...
Biology Products: