International consortium announce the first complete sequencing of pear genome

Jun 06, 2012

An international pear genome consortium, comprised of seven universities and institutes, has completed the first pear genomic sequence in the world. The early access of pear genomic data is now available online (http://peargenome.njau.edu.cn). The international team includes researchers from Nanjing Agricultural University, BGI, Zhejiang Academy of Agricultural Sciences, University of Illinois at Urbana-Champaign, University of Georgia, University of Hawaii, and Tohoku University.

Pear (Pyrus spp.) is one of the major and oldest cultivated fruit trees in the temperate regions, which is likely to have originated during the Tertiary period (65 million years ago) in southwestern China. It is genetically diverse with more than 5,000 cultivars and accessions present all over the world that could be divided into two major groups, the European or "Occidental" pears and the Asiatic or "Oriental" pears.

Since pear project was initiated in April of 2010, the consortium has devoted great efforts on the de novo sequencing, assembly and annotation. The joint effort has yielded a high-quality diploid draft genome sequence for the commercially important Asiatic pear cultivar "Suli", P. bretschneideri Rehd. cv. Dangshansuli. A total of 97.1% of the estimated whole has been assembled. These assembled scaffolds have been aligned and oriented to their corresponding 17 chromosomes using a high-density genetic map.

Professor Shaoling Zhang, the chief scientist and group leader of the pear genome sequencing project at Nanjing Agricultural University, said, "The complete sequencing of the pear genome provides a solid scientific foundation for scientists to explore the complex underlying the pear fruit tree, such as the key genes that related with the taste, color, storage, resistance for diseases and insects as well as yield improvement. Moreover, the genomic sequence provides an invaluable new resource for tracing pear's ."

Professor Jun Wang, Executive Director of BGI, said, "The completion of the genome sequencing is a major step forward to understanding pear's important economic traits. We are making continuous efforts for decoding genomes of plants and animals that play a key economic role or are considered valuable food sources, as well as endangered species that have evolutionary or scientific importance. We would like to enhance the genomic research through collaborative projects with researchers worldwide for better understanding the genetics basis of plants and animals and boosting the further development of modern agriculture."

Explore further: Vermicompost leachate improves tomato seedling growth

add to favorites email to friend print save as pdf

Related Stories

Kids pear juices are recalled in Canada

Mar 12, 2008

Canadian officials are warning against consuming President's Choice- and Beech Nut-brand pear juices because of possible arsenic contamination.

Recommended for you

Vermicompost leachate improves tomato seedling growth

Nov 21, 2014

Worldwide, drought conditions, extreme temperatures, and high soil saline content all have negative effects on tomato crops. These natural processes reduce soil nutrient content and lifespan, result in reduced plant growth ...

Plant immunity comes at a price

Nov 21, 2014

Plants are under permanent attack by a multitude of pathogens. To win the battle against fungi, bacteria, viruses and other pathogens, they have developed a complex and effective immune system. And just as ...

Evolution: The genetic connivances of digits and genitals

Nov 20, 2014

During the development of mammals, the growth and organization of digits are orchestrated by Hox genes, which are activated very early in precise regions of the embryo. These "architect genes" are themselves regulated by ...

Surrogate sushi: Japan biotech for bluefin tuna

Nov 20, 2014

Of all the overfished fish in the seas, luscious, fatty bluefin tuna are among the most threatened. Marine scientist Goro Yamazaki, who is known in this seaside community as "Young Mr. Fish," is working to ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.