Navigation Links
Designer Strawberries

Researchers at the Virginia Bioinformatics Institute (VBI) and the Department of Horticulture in the College of Agriculture and Life Sciences at Virginia Tech have developed a new procedure for the efficient transfer// of specific DNA sequences into the genome of strawberry. The method takes advantage of Agrobacterium's circular DNA molecule (T-DNA) to deliver DNA to the plant. By helping researchers establish the function of large numbers of strawberry genes, this method could, in the long term, be extremely useful in enhancing the nutritional value of these plants as well as the amount of health-enhancing antioxidants that they may contain.

Jerzy Nowak, professor and head of the Department of Horticulture at Virginia Tech, commented: "Over the years, scientists have worked hard to find a system that would enable the efficient transformation of strawberry. However, these efforts have fallen short of the requirements to support large-scale studies of gene function in fruit crops." He added: "What sets this work apart is the concerted approach adopted by the researchers to combine different parameters that boost the efficiency by which foreign DNA is introduced into this economically important crop."

Herb S. Aldwinckle, professor in the Department of Plant Pathology at Cornell University, Geneva, New York, who has developed highly efficient techniques for transforming apple, remarked: "The commercial strawberry familiar to most consumers is octoploid, which means that it contains eight sets of chromosomes. By using a close relative that has two sets of chromosomes and a significantly smaller genome, the researchers have found a particular type of alpine strawberry that is very amenable to transformation." He added: "The transformation rate achieved is the result of innovation and great attention to experimental detail." Due to the small size of its genome, short reproductive cycle and small plant size, F. vesca is an ideal model system for gen omics in commercial strawberry. The rapid growth of new shoots, the high number of seeds generated and the ease in which new plants may be established, make this plant an ideal candidate as a platform for large-scale studies to elucidate gene function.

The new protocol involves taking strawberry plant tissue from its original site and transferring it to an artificial medium for growth or maintenance. Here unfolded leaves, known as trifoliate leaves, are able to grow. When collected at 6-7 weeks after seed germination, these leaves are highly amenable to gene transfer using A. tumefaciens. Since they glow green under fluorescent light due to the presence of Green Fluorescent Protein (GFP), transformed strawberry plants may be easily identified by visual inspection. This is the first time that GFP has been used in strawberry as a visually selectable marker.

Commenting on the research, VBI Professor Vladimir Shulaev, one of the authors of the study, remarked: "The development of this protocol for strawberry represents a key milestone for researchers interested in improving strawberry and other fruit crops through genomics." He added: "We are now in a position to generate a collection of mutants that will serve as an invaluable tool not only for discovering new genes in the Rosaceae family but also for establishing the functions of these genes through high-throughput screening methods."

The electronic preprint of this article entitled "High-efficiency transformation of the diploid strawberry (Fragaria vesca) for functional genomics" (Planta, 2005, Dec 1:1-12) is available online at www.springerlink.com/openurl.asp?genre=article&id=doi:10.1007/s00425-005-0170-3 [Epub ahead of print].

The work was funded by a Virginia Tech ASPIRES grant (A Support Program for Innovative Research Strategies). Virginia Bioinformatics Institute (VBI) at Virginia Tech has a research platform centered on understanding the "disease triangle" of host-p athogen-environment interactions in plants, humans and other animals. By successfully channeling innovation into transdisciplinary approaches that combine information technology and biology, researchers at VBI are addressing some of today's key challenges in the biomedical, environmental and plant sciences.

Ranked 11th in agricultural research expenditures by the National Science Foundation, Virginia Tech's College of Agriculture and Life Sciences offers students the opportunity to learn from some of the world's leading agricultural scientists. The college's comprehensive curriculum gives students a balanced education that ranges from food and fiber production to economics to human health. The college is a national leader in incorporating technology, biotechnology, computer applications, and other recent scientific advances into its teaching program.

Contact: Barry Whyte whyte@vbi.vt.edu 540-231-1767 Virginia Tech
'"/>




Related medicine news :

1. Designer baby for British couple
2. New !! “Designer” Gene Theray
3. Designer Rats Reveal Possible Heart Disease Genes
4. Designer Babies- To Create Or Not To Create!
5. Indian Designers show lot of Talent
6. A Couple To Create A Designer Baby As A “Saviour Sibling
7. Designer babies
8. Many Couples Opting For "Designer Babies"
9. Can Designer Cities Keep Citizens Physically Fit?
10. Red Color Causes The Allergic Reaction To Strawberries
11. Eating Strawberries may boost memory
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/11/2016)... ... , ... PharmMD CEO Robert Yeager announced today ... contract negotiations, corporate strategy and healthcare data law. Additional responsibilities will include healthcare ... breaches for the Part D Star Rating improvement and Medication Therapy Management firm. ...
(Date:2/11/2016)... NY (PRWEB) , ... February 11, 2016 , ... ... enhanced and updated its hallmark resource, Infusion Therapy Standards of Practice, to include ... in vein illumination with an estimated 85% share of the market, facilitates adherence ...
(Date:2/11/2016)... ... 11, 2016 , ... The annual list showcases the 20 Most Promising SharePoint ... dedication and commitment to the SharePoint ecosystem. A panel of experts and members ... is to recognize and promote technology entrepreneurship. , The survey was made at ...
(Date:2/11/2016)... ... February 11, 2016 , ... ... ergoFET force gauges used in physical therapy, occupational therapy and sports medicine clinics, ... resistance cord exercise and therapy, introduces its new microFET Digital Pinch Gauge. ...
(Date:2/11/2016)... ... February 11, 2016 , ... ... in significantly higher rates of several common cancer screenings, especially among women. Cancer ... outcomes and survival rates. , The study,“What Does Medicaid Expansion Mean for ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... de 2016  A Proliant Biologicals anuncia, com ... bovina (BSA -- Bovine Serum Albumin ) ... Norte da Nova Zelândia, em Feilding. ... da Proliant nos EUA, localizada em ... dos equipamentos foram feitos de forma a reproduzir ...
(Date:2/11/2016)... , Ill. and INDIANAPOLIS , Feb. ... for many young people, but for those with type ... only do these students juggle class schedules, assignments and ... living with type 1 diabetes. On top of that, ... time. Diabetes Scholars Foundation (Foundation) Lilly ...
(Date:2/11/2016)... , February 11, 2016 ... release of a new research report, titled "Sports Medicine Devices ... Forecast, 2013 - 2019". According to the report, the global ... 4.40% CAGR from 2013 to 2019, growing from a value ... --> --> The global ...
Breaking Medicine Technology: