HOME >> BIOLOGY >> NEWS
Rice genome approaches completion

A large group of scientists led by the Beijing Institute of Genomics has published in the freely-available online journal PLoS Biology a much improved, near-complete genome analysis of the indica and japonica subspecies of Oryza sativa, which are eaten in India and China, and Japan, respectively. The analysis team, led by Gane Ka-Shu Wong, provides important insights into the evolution of rice.

The key to the improvement in the genome sequence analysis is that the researchers have used the combined DNA sequence data from the two subspecies to facilitate the sequence assembly. The result is a nearly 1,000-fold increase in contiguity for the two genome sequences relative to the existing sequence data.

The researchers have used their improved genome sequence to investigate the evolutionary history of rice. Central to evolution is the development of new functions through mutation of existing genes. But when mutations occur in functional genes, the result is rarely beneficial, so it is thought that evolution is more likely to proceed first by duplicating existing genes and then experimenting on the "backup" copy of the gene.

Wong and colleagues report that there is evidence in the rice DNA sequences for a whole-genome duplication event just before the grasses diverged from other flowering plants, about 5570 million years ago. This genome duplication may have played a role in the origin of the grasses, which then spread rapidly across the world to provide important sources of food that, among other things, possibly influenced human evolution.

Analysis of the rice genomes also indicates that there is massive ongoing duplication of individual genes. These individual gene duplications provide a continuous source of raw material for gene genesis and very likely contribute to the differences between members of the grass family. Now the challenge is to use the rice sequences as a basis for detailed genetic analyse
'"/>

Contact: Paul Ocampo
pocampo@plos.org
415-624-1224
Public Library of Science
31-Jan-2005


Page: 1 2

Related biology news :

1. Unravelling new complexity in the genome
2. One species, many genomes
3. First genome-wide study of infectious disease opens new avenues for HIV treatment, vaccines
4. Charting ever-changing genomes
5. Neutral evolution has helped shape our genome
6. Sea anemone genome provides new view of our multi-celled ancestors
7. Cloning the male genome may help infertile men
8. Mutating the entire genome
9. Exploring the dark matter of the genome
10. New findings challenge established views on human genome
11. ENCODE map changes view of the human genome landscape

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Rice genome approaches completion

(Date:3/16/2015)... , March 16, 2015 ... Systems GmbH will present groundbreaking innovations in biometric ... Hanover, Germany .      (Photo: ... latest biometric innovation is well at the forefront: ... generation e-gate made in Germany ...
(Date:3/11/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/3p32qm/access_control ... Control Market by Product, Application & By Geography - ... their offering. , This report predicts that ... billion by 2020, with an estimated CAGR of 10.6%. ... products types such as contact cards & readers, contactless ...
(Date:3/10/2015)... , March 10, 2015  NXT-ID, Inc. (NASDAQ: ... the "Company"), a biometric authentication company focused on ... Wocket™ smart wallet has been named the "Number ... Modern. Rethink Modern ( http://www.rethinkmodern.com/ ) ... for your home and lifestyle that have a unique ...
Breaking Biology News(10 mins):DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 2DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 3Global Access Control (Cards & Readers, Biometrics, Controllers, Management Software) Market 2015-2020 - Analysis of the $10 Billion Market 2NXT-ID's Wocket Smart Wallet Named Number One Best Tech Gift for 2015 by Rethink Modern 2NXT-ID's Wocket Smart Wallet Named Number One Best Tech Gift for 2015 by Rethink Modern 3NXT-ID's Wocket Smart Wallet Named Number One Best Tech Gift for 2015 by Rethink Modern 4
(Date:3/27/2015)... 2015  Peter Walter wurde als Gewinner ... seine bahnbrechende Arbeit ausgewählt, die sich damit ... sowie für die Entschlüsselung der Komponenten eines ... nutzen, der mit der Ansammlung von deformierten ... Biochemie an der University of California, San ...
(Date:3/27/2015)... -- WuXi PharmaTech (Cayman) Inc. (NYSE: WX ... platform company serving the global pharmaceutical, biotechnology, and ... New Drug (IND) application for WuXi MedImmune,s novel ... accepted for review by the China Food and ... 2012, MedImmune, the global biologics research and development ...
(Date:3/26/2015)... 2015 /PRNewswire/ - SQI Diagnostics Inc. ("SQI" or the ... with certain matters, including the appointment of auditors, its ... 26, 2015 (the "Meeting") was adjourned, as previously disclosed ... 11:00 a.m. ( Toronto time). The ... that previous disclosed. The Meeting will reconvene at the ...
(Date:3/26/2015)... BOSTON , March 26, 2015 /PRNewswire/ ... ), a global clinical research organization ... signed a definitive agreement to acquire all ... India ("QSI"), a leading provider of specialized ... refers to the collection, detection, assessment, monitoring, ...
Breaking Biology Technology:Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 2Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 3Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 4Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 2Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 3SQI Diagnostics Inc. Announces Adjournment of Meeting 2PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 2PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 3PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 4
Cached News: