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:6/24/2016)... ... June 24, 2016 , ... Those who have experienced traumatic ... many turn to unhealthy avenues, such as drug or alcohol abuse, as a coping ... released tools for healthy coping following a traumatic event. , Trauma sufferers tend to ...
(Date:6/24/2016)... ... 24, 2016 , ... The Pulmonary Hypertension Association (PHA) learned ... receive two significant new grants to support its work to advance research and ... by recognizing patients, medical professionals and scientists for their work in fighting pulmonary ...
(Date:6/24/2016)... Diego, CA (PRWEB) , ... June 24, 2016 , ... ... with the American Cancer Society and the Road To Recovery® program to drive cancer ... to seniors and other adults to ensure the highest quality of life and ongoing ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... at the Clinical Decision Making in Emergency Medicine conference in Ponte Vedra Beach, ... journal articles published in Emergency Medicine Practice and Pediatric Emergency Medicine ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... ... is actively feeding the Frederick area economy by obtaining investment capital for emerging ... the past 2½ years that have already resulted in more than a million ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... HILLS, Calif. , June 23, 2016 Any ... the many challenges of the current process. Many of them ... because of the technical difficulties and high laboratory costs involved. ... have to offer it at such a high cost that ... afford it. Dr. Parsa Zadeh , founder ...
(Date:6/23/2016)... , June 23, 2016 ... CAPR ), a biotechnology company focused on the ... announced that patient enrollment in its ongoing randomized ... has exceeded 50% of its 24-patient target. Capricor ... the third quarter of 2016, and to report ...
(Date:6/23/2016)... -- Astellas today announced the establishment of Astellas Farma Colombia (AFC), a new affiliate with operations headquartered in ... . ... ... ... Astellas is ...
Breaking Medicine Technology: