Navigation Links
Scientists use microRNAs to track evolutionary history for first time
Date:9/9/2009

New Haven, Conn.The large group of segmented worms known as annelids, which includes earthworms, leeches and bristle worms, evolved millions of years ago and can be found in every corner of the world. Although annelids are one of the most abundant animal groups on the planet, scientists have struggled to understand how the different species of this biologically diverse group relate to each other in terms of their evolutionary history. Now a team of scientists from Yale University and Dartmouth College has used a groundbreaking method to untangle some of that history.

The researchers used a novel source of datathe presence and absence of different microRNA genesto investigate the evolutionary relationships of annelids. MicroRNAs are small, non-coding genes that have long been known to play an important role in developmental biology but which have never before been used to study the evolutionary relationships between organisms. The team's findings appear online September 9 in the journal Proceedings of the Royal Society B.

"These genes are excellent evolutionary markers," said lead author Erik Sperling, a graduate student in Yale's Department of Geology and Geophysics. "Once a microRNA gene is fixed in a species, it is very rarely lost. As such, organisms with similar microRNAs are closely related to one another."

Building on previous work done at Kevin Peterson's lab at Dartmouth, which demonstrated the potential of using microRNAs to decipher evolutionary history, the team applied a form of high-throughput sequencing technology at the Yale Center for Genomics and Proteomics that uses a novel strategy to reveal the microRNA complement of an organism.

They discovered that certain groups of organisms previously shown by molecular analyses to lie within the annelid family, such as mollusks and peanut worms, could not have evolved from the same branch of the evolutionary tree as the rest of the annelids. Instead, the team
'/>"/>

Contact: Suzanne Taylor Muzzin
suzanne.taylormuzzin@yale.edu
203-432-8555
Yale University
Source:Eurekalert

Page: 1 2

Related biology news :

1. UK scientists working to help cut ID theft
2. Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes
3. Comet probes reveal evidence of origin of life, scientists claim
4. Scientists link fragile X tremor/ataxia syndrome to binding protein in RNA
5. Male elephants get photo IDs from scientists
6. Scientists retrace evolution with first atomic structure of an ancient protein
7. Muscle mass: Scientists identify novel mode of transcriptional regulation during myogenesis
8. Carnegie Mellon scientists develop nanogels that enable controlled delivery of carbohydrate drugs
9. Clemson scientists shed light on molecules in living cells
10. Scientists tackle mystery mountain illness
11. T. rex quicker than Becks, say scientists
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/12/2015)... NXT-ID, Inc. (NASDAQ: NXTD ... company focused on the growing mobile commerce market, announced ... DISTRIBUTED METHOD AND SYSTEM TO IMPROVE COLLABORATIVE ... establishes NXT-ID,s position in the emerging "Internet of Things" ... for multiple devices to collaborate with one another to ...
(Date:2/5/2015)... PARK, North Carolina , 5. Februar ... 35. Jahr als spezialisiertes Logistikunternehmen und hat ... als einzige klinische Logistikfirma (Clinical Logistics Organization ... Kernbotschaft der neuen Kampagne lautet First ... Lieferungen. Foto: http://photos.prnewswire.com/prnh/20150205/173753 ...
(Date:2/5/2015)... 2015   Marvin Test Solutions , ... test solutions for military, aerospace, and manufacturing ... TS-323 GENASYS Test Platform to ... is a high-performance PXI-based system designed to ... require performance functional testing. GENASYS features a ...
Breaking Biology News(10 mins):NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 3Marken startet Kampagne mit Patienten im Mittelpunkt 2Marken startet Kampagne mit Patienten im Mittelpunkt 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 2Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 4
... 1, 2012)For eastern Pacific populations of leatherback turtles, the ... that climate change could exacerbate existing threats and nearly ... hatchlings in nests buried at hotter, drier beaches are ... according to a new study in the journal ...
... When people have similar injuries, why do some end up ... The first longitudinal brain imaging study to track participants with ... all in their heads - quite literally. A ... chronic pain develops the more two sections of the brain ...
... Like detectives seeking footprints and other clues on a ... tracks of important players in the body,s molecular landscape. ... Jolla Institute for Allergy & Immunology, has done just ... of inflammation-producing immune cells. The finding provides powerful, ...
Cached Biology News:Rising heat at the beach threatens largest sea turtles, climate change models show 2Rising heat at the beach threatens largest sea turtles, climate change models show 3Why chronic pain is all in your head 2La Jolla Institute scientist discovers key step in immune system-fueled inflammation 2La Jolla Institute scientist discovers key step in immune system-fueled inflammation 3La Jolla Institute scientist discovers key step in immune system-fueled inflammation 4
(Date:3/4/2015)... -- In an article published and posted online today, ... review the clinical aspects of diseases caused by 5 ... article, "Clinical Management of Potential Bioterrorism-Related Conditions," was published ... New England Journal of Medicine . ... Tom Inglesby—review the clinical management of conditions resulting from ...
(Date:3/4/2015)... , Mar. 04, 2015 Research and ... the addition of Jain PharmaBiotech,s new report ... their offering. This report follows ... characteristic that can be objectively measured and evaluated ... processes as well as pharmacological responses to a ...
(Date:3/4/2015)... Proove Biosciences , a commercial ... to announce the launch of their CME-accredited course ... of Pain”. , The continuing medical education program ... year. The focus of the program is to ... treatments, integrate appropriate pain management techniques, and incorporate ...
(Date:3/4/2015)... San Jose, California (PRWEB) March 04, 2015 ... Chain Reaction (PCR) represents one of the fastest growing ... among cell biologists in subcellular visualization is driving growth ... The need for deeper understanding of gene expressions will ... reagents market. Expanding applications in fields ranging from pharma, ...
Breaking Biology Technology:Latest Clinical Information On Bioterrorism Threats 2Global Biomarkers Report 2014-2024 - Technologies, Markets and Companies 2Global Biomarkers Report 2014-2024 - Technologies, Markets and Companies 3Proove Biosciences Launches CME Accredited Program with Medscape 2Proove Biosciences Launches CME Accredited Program with Medscape 3Focus on Quantifying Nucleic Acid Molecules Spurs Growth in the qPCR & dPCR Instrumentation Market, According to a New Report by Global Industry Analysts, Inc. 2Focus on Quantifying Nucleic Acid Molecules Spurs Growth in the qPCR & dPCR Instrumentation Market, According to a New Report by Global Industry Analysts, Inc. 3Focus on Quantifying Nucleic Acid Molecules Spurs Growth in the qPCR & dPCR Instrumentation Market, According to a New Report by Global Industry Analysts, Inc. 4
... UK,s National Physical Laboratory (NPL) is working to provide more ... nanotechnology which could lead to much more accurate devices ... Nobel Prize in 1986. It uses a nano-sized probe to ... finger reading Braille on an extremely small scale. The technique ...
... 20 Deloitte today released the 2010 Technology Fast ... media, telecommunications, life sciences and clean technology companies in ... fiscal year revenue growth from 2005 to 2009.  For ... on the Technology Fast 500™ than any other single ...
... Iowa, Oct. 20 Bio-Research Products announced today ... offerings a lower cost, industrial grade for application ... Dr. Bryce Cunningham, President, said that "there has ... and pharmaceutical markets which has prompted us to ...
Cached Biology Technology:Measuring the electrical properties of nano-crystals 2Deloitte Announces 2010 Technology Fast 500™ Rankings 2Deloitte Announces 2010 Technology Fast 500™ Rankings 3Deloitte Announces 2010 Technology Fast 500™ Rankings 4Bio-Research Products Introduces New Grade of Chloroperoxidase Enzyme for Industrial Applications 2
... that it uses a deep-UV deuterium bulb, which ... with a shutter (controlled via a TTL signal ... DH-2000 Deuterium Tungsten Halogen Light Source combines ... light sources in a single optical path. The ...
... pump is a dedicated cuff pump for small ... replaces manual inflation and can be used for ... mouse and rat; from single up to multi-channel ... pump has adjustable cut-off pressure in 50 mmHg ...
... depleted sera are specifically depleted of a ... the depleted protein, the alternative and classical ... therefore ideal for the detection and quantitation ... have been used to assess complement activation ...
... of light production by luciferase-cDNA transfected cell ... technique in the development of reporter gene ... as an indicator for the transcription of ... enzyme is due to advantages such as ...
Biology Products: