Navigation Links
Animal with the most genes? A tiny crustacean
Date:2/3/2011

high rate of gene duplication, which produces a steady pool of new genes that have different expressions can facilitate the preservation of some gene-copies by natural selection."

Like most theories for how new genes evolve, their common fate is to wither by disabling mutations. For a new gene to persist, its function must give an advantage to the organism -- and the earlier the better for the gene to avoid bad mutations. In Daphnia's case, there seems to be a sufficiently large pool of young gene copies that some will be expressed in novel circumstances, and by chance be compatible with expression patterns of interacting genes required to perform its new function.

"At first glance, amplified gene families in Daphnia are more likely to be functionally related than not," said Michael Lynch, coauthor and distinguished professor of biology at IU Bloomington. "This suggests that gene functions via duplication often evolve in cooperation with other genes in the genome. We are not yet prepared to generalize our findings until we broaden our investigation to include more Daphnia lineages having different population histories. However, it's quite clear that this genome project opens up enormous opportunities that are not readily accomplished using other models with poorly understood -- and not terribly accessible -- ecologies."

So what other reasons might Daphnia have so many genes compared to other animals? The coauthors of the Science paper begin addressing that issue as well as others related to the genomic architecture and evolution of the species.

"We don't yet have final answers," Pfrender said. "The sequenced isolate did originate from a naturally inbred population, which may contribute to some features of this genome -- and Daphnia's partial asexuality may have a hand to play."

Another possibility, Colbourne said, is that "since the majority of duplicated and unknown genes are sens
'/>"/>

Contact: David Bricker
brickerd@indiana.edu
812-856-9035
Indiana University
Source:Eurekalert  

Page: 1 2 3 4 5 6

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. Researchers find animal with ability to survive climate change
3. Researchers note differences between people and animals on calorie restriction
4. Earliest animal footprints ever found -- discovered in Nevada
5. Details of evolutionary transition from fish to land animals revealed
6. Drug-embedded microparticles bolster heart function in animal studies
7. Swamping bad cells with good in ALS animal models helps sustain breathing
8. Moderate use averts failure of type 2 diabetes drugs in animal model
9. Grapes may aid a bunch of heart risk factors, animal study finds
10. Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25
11. Discovery of giant roaming deep sea protist provides new perspective on animal evolution
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Animal with the most genes? A tiny crustacean
(Date:7/24/2014)... of 3.5 billion years of evolutionary trial and error, ... it may be reaching a tipping point. , In ... data published in Science , an international team ... animals is contributing to what appears to be the ... event. , Since 1500, more than 320 terrestrial vertebrates ...
(Date:7/24/2014)... own microbial terroir, meaning the microbial populations found on ... product, creating the final flavor according to research published ... Environmental Microbiology . This is the first time investigators ... , Many sake makers inoculate with both bacteria ... the University of California, Davis, but he and his ...
(Date:7/24/2014)... 2014(BRONX, NY)Researchers at Albert Einstein College of Medicine ... The Michael J. Fox Foundation for Parkinson,s Research to ... Parkinson,s disease. This drug discovery project will test chemical ... of developing a drug that acts on an underlying ... for Parkinson,s help many people manage their symptoms, we ...
Breaking Biology News(10 mins):Stanford biologist warns of early stages of Earth's 6th mass extinction event 2Stanford biologist warns of early stages of Earth's 6th mass extinction event 3The microbes make the sake brewery 2Albert Einstein College of Medicine receives grant from the Michael J. Fox Foundation to fund drug discovery project targeting Parkinson's 2Albert Einstein College of Medicine receives grant from the Michael J. Fox Foundation to fund drug discovery project targeting Parkinson's 3
... there is a serious influenza outbreak will do little to ... findings of a study conducted at the UK Health Protection ... Sometimes a new type of influeza virus appears that causes ... case for flu. This happened, for example, in 1918, when ...
... defined the collective genome of the human gut, or colon. ... make up a motley "microbiome" that allows humans to digest ... fiber. , In a study published in the June ... for Genomic Research (TIGR) and their colleagues describe and analyze ...
... spend $21 billion for HIV/AIDS research, treatment, prevention, and ... study published in the July 1 issue of The ... it is--and more so than previously thought. , The ... , MD, MSc and colleagues at Massachusetts General Hospital ...
Cached Biology News:Air travel and pandemic flu 2Gut reaction: Researchers define the colon's genome 2Gut reaction: Researchers define the colon's genome 3New study calculates millions of years saved in lives of AIDS patients 2
(Date:7/24/2014)... 24, 2014  CorMedix Inc. (NYSE MKT: CRMD), ... therapeutic products for the prevention and treatment of ... notice on July 18, 2014 from the NYSE ... the CorMedix plan to regain compliance with continued ... the NYSE-MKT is continuing the Company,s listing and ...
(Date:7/24/2014)... Mich. , July 24, 2014  Neogen Corporation ... that future forecasts of its potential revenue from new ... call to investors and analysts on July 22, 2014, ... by analysts regarding this research. "It was ... questions about the potential of a new type of ...
(Date:7/24/2014)... 24, 2014 The first part of ... in First in Human Studies” will cover comprehensive clinical ... decisions. , With increasing R&D costs and declining industry ... to maximize the knowledge collected in early Phase I/IIa ... success in late stage development. , Next, the presenters ...
(Date:7/24/2014)... , July 24, 2014   Cypher Genomics, ... the appointment of Adam Simpson as ... provides rapid and comprehensive annotation and interpretation of ... reporting. "Cypher,s technology has the potential ... by enhancing diagnostic accuracy, optimizing therapeutic approaches and ...
Breaking Biology Technology:CorMedix, Inc. Granted Extension of NYSE-MKT Listing 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 3Neogen comments on SenesTech 2Best Practices for Optimizing Dose Escalation in First in Human Studies, New Webinar August 6th Hosted by Xtalks 2Cypher Genomics Announces the Appointment of Adam Simpson as President and COO to Advance Transformative Genome Interpretation Technology 2Cypher Genomics Announces the Appointment of Adam Simpson as President and COO to Advance Transformative Genome Interpretation Technology 3
... ORANGE, N.J., Oct. 18, 2011 Kessler Foundation announced ... Research Center as Director of the Human Performance and ... 2012. "The addition of Dr. Yue is ... physical and cognitive research aimed at improving rehabilitation for ...
... 18, 2011 /PRNewswire-Asia/ -- China Botanic Pharmaceutical Inc. (NYSE ... "Company"), a developer, manufacturer and distributor of botanical products, ... announced that the board increased the number of directors ... annual board meeting and appointed Mr. Zack Zibing Pan ...
... Oct. 18, 2011 Immune Design Corp. (IDC) announced ... the company as its new Chief Business Officer.  In ... years of pharmaceutical and biotechnology industry experience to lead ... advancing pipeline of novel therapeutic vaccines and immunotherapies for ...
Cached Biology Technology:Kessler Foundation Appoints New Director of Human Performance and Engineering Laboratory 2Kessler Foundation Appoints New Director of Human Performance and Engineering Laboratory 3China Botanic Appoints Zack Zibing Pan as an Independent Director and Chairman of its Audit Committee 2China Botanic Appoints Zack Zibing Pan as an Independent Director and Chairman of its Audit Committee 3Immune Design Corp. Appoints Guy F. Cipriani as Chief Business Officer 2
... TOPO Cloning Kits for Sequencing allow 5-minute cloning ... contain TOPO Cloning vectors with primer sites located ... PCR product insertion site. This minimizes the amount ... before reaching the sequence of your insert.vectors are ...
Blot Paper 7 x 8.5cm semi-dry western blots (order number RB-400)...
The product contains 10 ml Dynabeads Epoxy (4.5 m). Supplied at 4 x 10 8 beads/ml...
Request Info...
Biology Products: