HOME >> BIOLOGY >> NEWS
Improving crops without genetic modification natural variation holds the key

Traditional plant breeders improve the quality and yield of crops by crossing plants with desired traits to create a new, hopefully improved, hybrid strain. But traditional breeding is limited by the available gene pool of a cultivated plant species and eventually hits a wall--reshuffling the same genetic variation can boost yield only so much. With the advent of biotechnology, plant scientists were buoyed by the prospect of improving plants through genetic modification. But aside from a few successes with introducing single-gene herbicide- and pest-resistant traits, most plant traits have proved too complex to repay the incorporation of a single transgene--that is, a gene taken from a different species--with the hoped-for response. Biotech-based investigations and applications in plant science have also been hampered by consumer reaction against genetically modified organisms.

Faced with these limitations, Amit Gur and Dani Zamir of The Hebrew University of Jerusalem tried another approach--a back-to-nature approach. "Natural biodiversity is an unexploited sustainable resource that can enrich the genetic basis of cultivated plants," they explain in the report.

First Gur and Zamir identified genomic regions in wild tomato species that affect yield, by creating a population of hybrid crosses of a wild tomato species and a cultivated tomato species; each line had a single genomic region from the wild tomato inserted into the cultivated plant. They then combined three independent yield enhancing genomic regions from the wild species into the new plant line. Plants were grown over three seasons, during which they were exposed to different environments, including drought. By combining traditional breeding techniques with genetic marker analysis, the authors identified a number of wild tomato genomic regions that dramatically increased yield.

Their results demonstrate that an approach based on biodiversity--which takes advantage of the rich genet
'"/>

Contact: Paul Ocampo
pocampo@plos.org
1-415-624-1224
Public Library of Science
23-Aug-2004


Page: 1 2

Related biology news :

1. Improving the bodys homeland security against TB
2. Improving fertilizer efficiency
3. Improving bone implant technology
4. Improving water use in growing corn possible, study shows
5. Improving preventative care for coronary bypass patients
6. New England Water Is Improving But Problems Remain, Says New USGS Report
7. Improving Salmon Management
8. NASA Exhibit, Experts To Be In Baltimore Focusing On Space Research Improving Earth-Based Health Care
9. Pennsylvanias R&D Climate Improving
10. Domesticated tree crops may be the future of forestry
11. Disease threatens cucumbers, pumpkins, and other vine crops

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/1/2020)... ... July 01, 2020 , ... ... had completed the purchase of Teva-Takeda Pharmaceuticals’ packaging facility in Minakuchi, located in ... Japanese clinical supply facility located in Kakegawa, the new 60,000-square-foot facility will provide ...
(Date:6/28/2020)... (PRWEB) , ... June 25, 2020 , ... In an ... on innovations in accelerated Point of Care Testing solutions (POCT). Check local listings for ... are collected at medical offices and are shipped to labs throughout the country. Results ...
(Date:6/23/2020)... ... June 23, 2020 , ... First Aid ... Ltd, a UK supplier and manufacturer of innovative portable renewable energy equipment, have ... the fight against the COVID-19 pandemic in Zambia. , One of Renovagen’s FAST ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... ... August 12, 2020 , ... ... (EMMA International), a global leader in FDA compliance consulting has been named on ... private companies. The list represents a unique look at the most successful companies ...
(Date:7/31/2020)... ... 29, 2020 , ... G-CON Manufacturing, the leader in off-site ... FOR LIFE.” The adoption of this taglines comes at a time of tremendous ... to provide patients with urgently needed vaccines and other lifesaving pharmaceutical treatments. G-CON’s ...
(Date:7/31/2020)... (PRWEB) , ... July 29, 2020 , ... ... 200 of the top radiation centers in 16 countries, has reached its 20th ... SDX® is now in routine use at top universities including University of Pennsylvania, ...
(Date:7/18/2020)... ... July 16, 2020 , ... ... aid in the early detection and prevention of high-burden diseases, and Centric Consulting, ... hospitals and healthcare organizations to utilize existing data in order to identify and ...
Breaking Biology Technology:
Cached News: