Navigation Links
Single gene dramatically boosts yield, sweetness in tomato hybrids, CSHL-Israeli study finds
Date:3/28/2010

Cold Spring Harbor, N.Y. Giving tomato breeders and ketchup fans something to cheer about, a Cold Spring Harbor Laboratory (CSHL) scientist and his colleagues at the Hebrew University in Israel have identified a gene that pushes hybrid tomato plants to spectacularly increase yield. The yield-boosting power of this gene, which controls when plants make flowers, works in different varieties of tomato, and crucially, across a range of environmental conditions.

"This discovery has potential to have a significant impact on both the billion-dollar tomato industry, as well as agricultural practices designed to get the most yield from other flowering crops," says CSHL's Zach Lippman, Ph.D., one of the three authors on the study, which appears in the journal Nature Genetics online on March 28th. The study is co-authored by Israeli scientists Uri Krieger and Professor Dani Zamir.

The team made the discovery while hunting for genes that boost hybrid vigor, a revolutionary breeding principle that spurred the production of blockbuster hybrid crops like corn and rice a century ago. Hybrid vigor, also known as heterosis, is the miraculous phenomenon by which intercrossing two varieties of plants produces more vigorous hybrid offspring with higher yields. First observed by Charles Darwin in 1876, heterosis was rediscovered by CSHL corn geneticist George Shull 30 years later, but how heterosis works has remained a mystery.

Shull's studies suggested that harmful, vigor-killing gene mutations that accumulate naturally in every generation are exposed by inbreeding, but hidden by crossbreeding. "But there is still no consensus as to what causes heterosis," says Lippman. "Another theory for heterosis, supported by our discovery, postulates that improved vigor stems from only a single gene an effect called "superdominance" or "overdominance."

To find overdominant genes, the team developed a novel approach by turning to a vast tomato "mutant lib
'/>"/>

Contact: Hema Bashyam
bashyam@cshl.edu
516-367-6822
Cold Spring Harbor Laboratory
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Behavior of single protein observed in unprecedented detail by Stanford chemists
2. New sensor array detects single molecules for the first time
3. Can a single layer of cells control a leafs size?
4. Method of the future uses single-cell imaging to identify gene interactions
5. A single atom controls motility required for bacterial infection
6. Saving the single cysteine: New antioxidant system found
7. Olympus introduces the VisiGlide, a single-use guidewire
8. Single-stranded DNA-binding protein is dynamic, critical to DNA repair
9. New nanochemistry technique encases single molecules in microdroplets
10. Single host gene may hold key to treating both ebola and anthrax infections
11. Single thawed embryo transfer after PGD does not affect pregnancy rates
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... Society shows that no-take zones in Belize can ... lobster, conch, and fish recover from overfishing, but ... The reporttitled "Review of the Benefits of No-Take ... no-take areas around the world. The report was ... in marine protected areas and fisheries management. The ...
(Date:7/11/2014)... OAK RIDGE, Tenn., July 11, 2014--Researchers at the ... received eight R&D 100 awards, presented by R&D ... innovations. , "These awards recognize the tremendous ... Energy Ernest Moniz. "Research and development at the ... its energy challenges and pursue the scientific and ...
(Date:7/11/2014)... in eastern New South Wales, Australia when NASA,s Aqua ... UTC on July 11 (12:35 p.m. local time/11:35 p.m. ... New South Wales (NSW), the Moderate Resolution Imaging Spectroradiometer ... region and spotted smoke (light brown) from various fires. ... outlined in red. , The New South Wales, Australia ...
Breaking Biology News(10 mins):Belize's lobster, conch, and fish populations rebuild in no-take zones 2ORNL wins eight R&D 100s 2ORNL wins eight R&D 100s 3ORNL wins eight R&D 100s 4
... In response to a complaint by People for ... has launched an inquiry into the actions of the ... the REACH chemical-testing program, which is expected to consume ... in July 2012, alleges that the European Chemicals Agency ...
... Colo., USA - Geology content posted online 4 through 25 ... observations of erupting geysers in Russia and from the age ... detailed information about each article are listed below. ... Earth ,3. Sagaing fault, Indo-Burmese wedge ,4. Anthropogenic lead ,5. ...
... Lakewood High School Team 1 won the Colorado High School ... National Science Bowl in Washington D.C., Apr. 25-29, where they ... students from 70 high schools. The U.S. Department of ... a way to encourage high school students to explore math ...
Cached Biology News:REACH news: European ombudsman takes up PETA complaint 2GEOLOGY starts 2013 with 25 new articles posted online ahead of print 2GEOLOGY starts 2013 with 25 new articles posted online ahead of print 3GEOLOGY starts 2013 with 25 new articles posted online ahead of print 4GEOLOGY starts 2013 with 25 new articles posted online ahead of print 5GEOLOGY starts 2013 with 25 new articles posted online ahead of print 6GEOLOGY starts 2013 with 25 new articles posted online ahead of print 7GEOLOGY starts 2013 with 25 new articles posted online ahead of print 8GEOLOGY starts 2013 with 25 new articles posted online ahead of print 9GEOLOGY starts 2013 with 25 new articles posted online ahead of print 10GEOLOGY starts 2013 with 25 new articles posted online ahead of print 11GEOLOGY starts 2013 with 25 new articles posted online ahead of print 12GEOLOGY starts 2013 with 25 new articles posted online ahead of print 13GEOLOGY starts 2013 with 25 new articles posted online ahead of print 14GEOLOGY starts 2013 with 25 new articles posted online ahead of print 15GEOLOGY starts 2013 with 25 new articles posted online ahead of print 16GEOLOGY starts 2013 with 25 new articles posted online ahead of print 17GEOLOGY starts 2013 with 25 new articles posted online ahead of print 18GEOLOGY starts 2013 with 25 new articles posted online ahead of print 19GEOLOGY starts 2013 with 25 new articles posted online ahead of print 20GEOLOGY starts 2013 with 25 new articles posted online ahead of print 21
(Date:7/10/2014)... (PRWEB) July 10, 2014 Terascala, the ... announced that Alan Swahn, a former vice president of ... team as vice president of marketing. Terascala’s software when ... and NetApp create the highest performance and most reliable ... appointed to guide Terascala’s channel expansion and broaden its ...
(Date:7/10/2014)... 10, 2014 Senior supply chain management ... associations, addressed the challenges of “Reducing Cost, Lead Time, ... through strategic sourcing. Describing the partnership of the Bio ... Chain Management Institute ( SCMI) of the University ... 24 at the Kroc Institute of Peace and Justice ...
(Date:7/10/2014)... , July 10, 2014 Research and ... of the "International Photonic Integrated Circuit (Monolithic ... to 2019" report to their offering. ... The concept of photonic integration traces its roots ... The promise of photonic integration went unexplored and ...
(Date:7/10/2014)... today in the journal PNAS (Proceedings of the ... of day and sleep deprivation have a significant effect ... looking at the best time of day to test ... for administering medicines effectively. , Researchers from the University ... investigated the links between sleep deprivation, body clock disruption ...
Breaking Biology Technology:Terascala Expands Executive Team 2Terascala Expands Executive Team 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4International Photonic Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) Market - Forecasts to 2019 2Time of day crucial to accurately test for diseases, new research finds 2
... Oct. 20 Celsis International is pleased to announce ... issued U.S. Patent No. 7,604,929 to Celsis In Vitro ... by which the company creates its unique LiverPool(TM) products ... cells from multiple donors to create large lots with ...
... DENVER, Oct. 20 The Colorado Center for Reproductive Medicine ... for patients undergoing in vitro fertilization (IVF) with comprehensive chromosome ... pregnancy success rate is about 30% worldwide. , In ... for all 23 pairs of chromosomes in a few cells ...
... ROME, October 20 Speaking in Rome, ... International Osteoporosis Foundation,(IOF) CEO Patrice McKenney called for ... fight against osteoporosis. "Osteoporosis is a common but,devastating ... measures must,be taken to reduce the burden of ...
Cached Biology Technology:Celsis IVT Granted U.S. Patent for LiverPool(TM) Hepatocytes 2Colorado Center for Reproductive Medicine Improves Pregnancy and Implantation Rates Using Comprehensive Chromosomal Screening of IVF Embryos 2Colorado Center for Reproductive Medicine Improves Pregnancy and Implantation Rates Using Comprehensive Chromosomal Screening of IVF Embryos 3World Osteoporosis Day Call for Immediate Action to Prevent Fractures 2