HOME ABOUT CONTACT AVAILABLE ISSUES SUBSCRIBE MEDIA & ADS CONFERENCE CALENDAR
LATEST UPDATES » Volume 20, No. 6, June 2016 – Medical Devices & Healthcare Technology       » Seizing Opportunity in Asia-Pacific's Complex and Rapidly Changing Medical Device Market       » IoT in Healthcare       » High Performance Computing Cluster (HPC), Pearcey, a Result of CSIRO-Dell Partnership       » SONY Expanding Footprint in Medical Field       » Biosensors Announces Strategic Agreement with Cardinal Health       » Gene Decides How Young We Look      
EYE in CHINA
Whole genome sequencing of wild rice reveals the mechanisms underlying Oryza genome evolution
In a collaborative study published in Nature Communications, researchers from Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, BGI-Shenzhen, and University of Arizona have completed the genome sequencing of wild rice Oryza brachyantha. This work provides new insights for researchers to understand the function and evolution of Oryza genomes.

The genus Oryza is an idea model system for studying plant comparative genomics, evolutionary biology and functional biology. There are two cultivated rice and more than twenty wild rice species. Among them, the wild relatives can provide invaluable genomic resources for rice improvement. As the most diverged wild relative of O. sativa (rice), O. Brachyantha has resistance against many rice pathogens and various stress environments. It was also proved to have the most compact genome in the genus Oryza, suggesting the genome may not experience many changes after the divergence of Oryza species.

In this study, researchers generated a high-quality reference genome sequence of O. brachyantha (~261Mb), and 96% genome sequences are anchored on 12 chromosomes based upon BAC-based physical map. After the comprehensive analysis, they found that the compact genome of O. brachyantha was caused by the silencing of LTR (Long terminal Repeats) retrotransposons and massive internal deletions of ancient elements.

Compared with the rice genome, the team found that many gene families were expanded in rice, where tandem duplications and gene movements mediated by double-strand break repair are responsible for the amplification of these genes. Researchers also observed that segmental and tandem duplications, further expanded by transposable element insertions, contributed to transition from euchromatin to heterochromatin in the rice genome, reflecting the dynamic nature of the Oryza genomes.

Quanfei Huang, Project Manager from BGI, said “This work revealed many important genomic mechanisms underlying Oryza genome, such as the genome size variation, gene movement and transition of euchromatin to heterochromatin. In the near future, I believe there will be more genomes of Oryza species to be cracked, enabling the genus Oryza be an unparalleled system for functional and evolutionary studies in plants.”

Click here for the complete issue.

NEWS CRUNCH  
news Gather China & World Pharmaceutical Entrepreneurs, Create a New Chapter of Chinese Pharma Industry
news Mundipharma's New Betadine® Facility to Meet Regional Healthcare Challenges
news STRATASYS launches World's First Full-ColoUr Multi-material 3D PRINTER - THE J750 - In Singapore
PR NEWSWIRE  
Asia Pacific Biotech News
EDITORS' CHOICE  

Healthcare Technology Outlook 2020 - Technology uptake
COLUMNS  
APBN Editorial Calendar 2016
January:
Guest Editorial - Biotechnology In Korea
February:
Guest Editorial - Biomedical Research Governance
March:
Guest Editorial - Life-Saving Opportunities: A Guide to Regenerative Medicine
April:
Leading-Edge ONCOLOGY
May:
Healthcare Systems & Policies in Asia
June:
Medical Devices & Healthcare Technology
July:
Water Technology and Management
August:
Novel Technologies for Antibody Drug Discovery in Japan
September:
Infectious Diseases
October:
Medical Tourism
November:
Biomedical Imaging Technology
December:
Food Technology
Editorial calendar is subjected to changes.
– Editor: Carmen, Jia Wen Loh
MAGAZINE TAGS
About Us
Events
Available issues
Editorial Board
Letters to Editor
Instructions to Authors
Advertise with Us
CONTACT
World Scientific Publishing Co. Pte. Ltd.
5 Toh Tuck Link, Singapore 596224
Tel: 65-6466-5775
Fax: 65-6467-7667
» For Editorial Enquiries:
   biotech_edit@wspc.com or Ms Carmen
» For Subscriptions, Advertisements &
   Media Partnerships Enquiries:
   biotech_ad@wspc.com or Mr Edward
Copyright© 2016 World Scientific Publishing Co Pte Ltd  •  Privacy Policy