Focus on Seed Biotechnologies
 
home news forum careers events suppliers solutions markets resources directories advertise contacts search site plan
 
   
 

.
Keyword

 
SEED BIOTECHNOLOGIES

information presented by SeedQuest and The Seed Biotechnology Center at UC Davis

home
primers
germplasm resources
variety development
seed production
storage and conservation
seed enhancement
commercialization
news
forum
careers & education
events
suppliers
markets
resources
more information
LEARN MORE
Seed Biotechnology Center at UC Davis
sbc.ucdavis.edu
 
 
 
introduction
plant breeding
genetic engineering
genotyping
induced mutation
marker-assisted breeding
phenomics
proteomics
Marker-assisted breeding

Marker-assisted (or molecular-assisted) breeding is the use molecular markers to track the genetic makeup of plants during the variety development process. It provides a dramatic improvement in the efficiency with which breeders can select plants with desirable combination of genes.

A molecular marker is a genetic tag that identifies a particular location within a plant’s DNA sequences.

Markers can be used in transferring a single gene into a new cultivar or in testing plants for the inheritance for many genes at once. Markers can be based on either DNA or proteins.

Both DNA- and protein-based markers have been widely used in plant breeding, but DNA-based markers by far predominate.

Greater numbers of DNA-markers can be identified to cover all regions of an organism’s DNA, and they are not based on the developmental stage of the plant as many protein-based markers are.

DNA-based markers can be derived from seeds or seedlings in rapid screening tests performed by automated robotic systems.

Plants lacking the desired traits can be eliminated before moving on to more expensive or lengthy greenhouse or field trials.

Additional resources:
 

Primer
on
marker
assisted
breeding

   

SeedQuest
KEYWORD Portal on marker-assisted breeding

   

Marker-assisted selection: a non-invasive biotechnology alternative to genetic engineering of plant varieties

 

information presented by SeedQuest and The Seed Biotechnology Center at UC Davis

 


Copyright SeedQuest - All rights reserved