Welcome To Website IAS

Hot news
Achievement

Independence Award

- First Rank - Second Rank - Third Rank

Labour Award

- First Rank - Second Rank -Third Rank

National Award

 - Study on food stuff for animal(2005)

 - Study on rice breeding for export and domestic consumption(2005)

VIFOTEC Award

- Hybrid Maize by Single Cross V2002 (2003)

- Tomato Grafting to Manage Ralstonia Disease(2005)

- Cassava variety KM140(2010)

Centres
Website links
Vietnamese calendar
Library
Visitors summary
 Curently online :  12
 Total visitors :  7451763

ARS Scientists Identify Genes Associated with Postharvest Deterioration of Fresh-Cut Lettuce
Tuesday, 2020/05/26 | 08:20:50

Figure: ARS scientists are looking for ways to make Romaine lettuce more resistant to browning and deterioration

 

Scientists from the U.S. Department of Agriculture Agricultural Research Service (USDA ARS) have identified five Romaine lettuce varieties that brown less quickly after fresh-cut processing and are slower to deteriorate postharvest. They have also identified the location of genes associated with postharvest deterioration of fresh-cut lettuce, and are in the process of identifying genes associated with browning.

 

According to the scientists, when browning and deterioration ratings are considered, the best breeding lines for commercial production and also to use as parents to develop new varieties are Darkland, Green Towers, Hearts Delight, Parris Island Cos, and SM13-R2. The chromosome region that contains the genes for slow deterioration also contains four genes (Dm4Dm7Dm11, and Dm44) and one DNA region (qDm4.2) that code for resistance to downy mildew, one of the most-costly lettuce disease. This colocation indicates a strong linkage between one or more of the four genes and the rate of deterioration. From their findings, DNA-based markers can be used to develop new breeding lines with a slow rate of deterioration and desirable combinations of resistance genes.

 

The results of this study could help the efforts of lettuce producers and processors to control browning and prolong shelf life which currently includes costly practices such as modified atmosphere packaging and flushing bags of cut lettuce with nitrogen gas to reduce oxygen levels in the bags.

 

For more details, read the ARS Research News.

Back      Print      View: 238

[ Other News ]___________________________________________________
  • Egypt Holds Workshop on New Biotech Applications
  • UN Agencies Urge Transformation of Food Systems
  • Taiwan strongly supports management of brown planthopper—a major threat to rice production
  • IRRI Director General enjoins ASEAN states to invest in science for global food security
  • Rabies: Educate, vaccinate and eliminate
  • “As a wife I will help, manage, and love”: The value of qualitative research in understanding land tenure and gender in Ghana
  • CIP Director General Wells Reflects on CIP’s 45th Anniversary
  • Setting the record straight on oil palm and peat in SE Asia
  • Why insect pests love monocultures, and how plant diversity could change that
  • Researchers Modify Yeast to Show How Plants Respond to Auxin
  • GM Maize MIR162 Harvested in Large Scale Field Trial in Vinh Phuc, Vietnam
  • Conference Tackles Legal Obligations and Compensation on Biosafety Regulations in Vietnam
  • Iloilo Stakeholders Informed about New Biosafety Regulations in PH
  • Global wheat and rice harvests poised to set new record
  • GM Maize Harvested in Vietnam Field Trial Sites
  • New label for mountain products puts premium on biological and cultural diversity
  • The Nobel Prize in Physiology or Medicine 2016
  • Shalabh Dixit: The link between rice genes and rice farmers
  • People need affordable food, but prices must provide decent livelihoods for small-scale family farmers
  • GM Seeds Market Growth to Increase through 2020 Due to Rise in Biofuels Use

 

Designed & Powered by WEBSO CO.,LTD