Navigation Links
Ancient genetic material from caries bacterium obtained for the first time
Date:7/23/2014

Streptococcus mutans, one of the principal bacteria that cause dental caries, has increased the change in its genetic material over time, possibly coinciding with dietary change linked to the expansion of humanity. This is highlighted in a study by researchers from the Universitat Autnoma de Barcelona (UAB) and the Laboratorio Nacional de Genmica para la Biodiversidad (National Laboratory of Genomics for Biodiversity) in Mexico who, for the first time, have sequenced genetic material from this bacterium in populations from the past. Increase in genetic diversity has been produced especially in the fragment of a gene that codifies a virulence factor known as dextranase.

The research, published in Proceedings of The Royal Society B, has studied the bacterium in eleven individuals from the Bronze Age up to the twentieth century, in Europe and in both pre- and post-colonial America. The oldest case is that of an individual dating from 1200 BC, from the burial cave in Montanisell (Lleida, Catalonia); the most recent, from the UAB collection, dates from the beginning of the twentieth century.

"The relationship is well known between the increase in frequency of caries and the dietary changes that occurred in the Neolithic, or with the European discovery of America, with the large-scale introduction of sugarcane to Europe, or the Industrial Revolution, but what was not known was whether this change happened jointly with changes at a genetic level is this bacterium", explains Marc Simn, trainee researcher in the UAB Biodiversity doctorate and the article's principal author.

"We saw that, in the most recent populations, genetic diversity was greater; to us, this indicates a population-based expansion by the bacterium that may have occurred in parallel with the demographic expansion of humans. We think that this increase took place in the Neolithic. Currently, the oldest individual we have analysed is from the Bronze Age
'/>"/>

Contact: Maria Jesus Delgado
MariaJesus.Delgado@uab.cat
34-935-814-049
Universitat Autonoma de Barcelona
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Cellular gates for sodium and calcium controlled by common element of ancient origin
2. New study: Ancient Arctic sharks tolerated brackish water 50 million years ago
3. Ancient ocean currents may have changed pace and intensity of ice ages
4. Newly discovered paddle prints show how ancient sea reptiles swam
5. Modern ocean acidification is outpacing ancient upheaval, study suggests
6. Leaf chewing links insect diversity in modern and ancient forests
7. Reconstructed ancient ocean reveals secrets about the origin of life
8. Ancient DNA offers clues to how barnyard chickens came to be
9. Ancient sea-levels give new clues on ice ages
10. Scientists reconstruct ancient impact that dwarfs dinosaur-extinction blast
11. Study: Black carbon is ancient by the time it reaches seafloor
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Ancient genetic material from caries bacterium obtained for the first time
(Date:8/24/2015)... The consulting company Frost & Sullivan ... DERMALOG and its customized solutions and products for ... the Year Award". DERMALOG is particularly successful with a large ... -Cross reference: Picture is available at AP Images ( ... Thursday evening, in South Africa,s economic ...
(Date:8/20/2015)... ., Aug. 20, 2015 NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market ... has joined The Smart Card Alliance and the EMV ... Alliance and the Smart Card Alliance Latin America (SCALA) ... industry peers and thought leaders promoting adoption of smart ...
(Date:8/17/2015)... OXFORD, Conn. , Aug. 17, 2015  NXT-ID, ... a biometric authentication company focused on the growing mobile ... announces its new sales campaign for Q4 2015. The ... winning marketing team consisting of Amplitude Marketing Group ( ... Amplitude Marketing Group is a leader in retail driven ...
Breaking Biology News(10 mins):Frost & Sullivan Honors DERMALOG with Biometrics Prize for Achievements in Africa 2Frost & Sullivan Honors DERMALOG with Biometrics Prize for Achievements in Africa 3NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 2NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 3NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 4NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 2NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 3
... -- A team of researchers from The Florida State ... will study the environmental and economic impacts of the ... on shrimping in the region, home to one of ... State will serve as the lead institution for the ...
... Oct. 30 SCM Microsystems, Inc. (Nasdaq: SCMM ) ... access, secure identity and secure exchange, announced today that its ... shares authorized during yesterday,s annual meeting of stockholders. ... 61 percent of SCM,s stockholders cast their votes and a ...
... The North Pacific Ocean is now commonly referred to ... size of the continental United States covered in plastic debris. ... forages throughout the North Pacific, is quickly becoming the poster ... due to their tendency to ingest large amounts of plastic. ...
Cached Biology News:FSU, Duke partner to study impact of Gulf's 'dead zone' on shrimp fishery 2FSU, Duke partner to study impact of Gulf's 'dead zone' on shrimp fishery 3SCM Microsystems Announces Results of Annual Meeting 2Dining out in an ocean of plastic: How foraging albatrosses put plastic on the menu 2
(Date:8/28/2015)... (PRWEB) , ... August 28, 2015 , ... Since the initial launch of FireflySci Inc. ... quirky humor and excellent customer service. Images such as the Fonz in a lab ... add some flavor to the humdrum spectroscopy field. , FireflySci is proud to ...
(Date:8/27/2015)... 2015  Neogen Corporation (NASDAQ: NEOG ) announced ... United Kingdom -based Lab M Holdings, a ... diagnostic systems. Lab M was founded ... of microbial testing and diagnostic products for the global ... currently sells into more than 70 countries worldwide, and ...
(Date:8/27/2015)... Calif. , Aug. 27, 2015  Asterias Biotherapeutics, ... the emerging field of regenerative medicine, today announced that ... conferences in the month of September.  ... present at Rodman & Renshaw,s 17th Annual Global Investment ... PT at the St. Regis Hotel in ...
(Date:8/27/2015)... -- GlassesOff (OTCBB: GLSO), a visual neuroscience technology ... vision system, announced today a partnership with eight-time All-Star, ... to develop a new mobile app designed for professional ... on-court performance. Vision is the inception of every ... ball or blocking a pass. The critical impact vision speed ...
Breaking Biology Technology:Cuvette Manufacturer FireflySci Launches Back to School Deals with Complimentary Shipping On All Orders 2Neogen acquires U.K.-based Lab M Holdings 2Asterias Biotherapeutics to Present at Upcoming Investor Conferences 2Eight-Time All-Star Chris Paul and GlassesOff Partner to Develop Innovative Mobile App Designed to Improve On-Court Performance 2Eight-Time All-Star Chris Paul and GlassesOff Partner to Develop Innovative Mobile App Designed to Improve On-Court Performance 3
... 28 Entest BioMedical, Inc., a newly formed wholly-owned ... Bulletin Board: BMSN) announced today the launch of its ... to focus on new stem cell research, including a ... traumatic brain injury (TBI) using autologous adipose-derived (fat) stem ...
... ("MedMira") (TSX Venture: MIR, NASDAQ: MMIRF ), ... solutions, announced today that VWR International, LLC (VWR) has ... Chester, Pennsylvania, VWR is a global laboratory supply and ... billion. , "The U.S. is an important market for ...
... Diagnostics scientists will present results of three studies revealing ... treatment of chronic myeloid leukemia (CML) and prostate cancer ... of Clinical Oncology (ASCO), scheduled for May 29 through ... DGX ) is the world,s leading provider ...
Cached Biology Technology:New Stem Cell Web Site to Focus on Traumatic Brain Injury, Spinal Cord Injury and Diabetes 2MedMira Strengthens North American Sales Channels, Adding VWR as Distributor for the United States 2Quest Diagnostics to Present Genomic Studies Related to New Testing Techniques for Leukemia and Prostate Cancer at 2009 ASCO Meeting 2Quest Diagnostics to Present Genomic Studies Related to New Testing Techniques for Leukemia and Prostate Cancer at 2009 ASCO Meeting 3Quest Diagnostics to Present Genomic Studies Related to New Testing Techniques for Leukemia and Prostate Cancer at 2009 ASCO Meeting 4Quest Diagnostics to Present Genomic Studies Related to New Testing Techniques for Leukemia and Prostate Cancer at 2009 ASCO Meeting 5
...
...
...
... and Sartolab P20 plus,for Reliable Sterile Filtration ... attached to a,membrane pump or tube pump, ... liter of media,and aqueous solutions. The ... and an automatic de-aeration,ensures high flow rates ...
Biology Products: