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Applications of molecular markers in breeding

OAR@ICRISAT

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Relation http://oar.icrisat.org/5838/
 
Title Applications of molecular markers in breeding
 
Creator Hash, C T
Hoisington, D A
Varshney, R K
et al, .
 
Subject Genetics and Genomics
Agriculture-Farming, Production, Technology, Economics
 
Description Molecular markers now provide appropriate complements to conventional breeding
methods in most crops in ICRISAT’s germplasm conservation and crop improvement
mandates. Where appropriate molecular markers are available, they are effective and
sometimes appropriate, tools for crop improvement research addressing biological
components in agricultural production systems. Molecular markers offer specific
advantages in the assessment of genetic diversity and in trait-specific crop improvement.
Molecular markers are almost infinitely superior to conventional morphological marker
genes for mapping or tagging gene blocks associated with economically important traits.
Gene tagging and QTL mapping in turn permit marker-assisted selection (MAS) in
backcross, pedigree and population improvement programs, which can be especially
useful for crop traits that are otherwise difficult or impossible to deal with by
conventional means. Near-isogenic products of marker-assisted backcrossing programs
can in turn provide not only improved cultivars, but also useful genetic tools facilitating
improved understanding of mechanisms of abiotic stress tolerance or mechanisms of host
plant resistance to pests and diseases that are critical components of integrated crop
management systems. Finally, when relatively high-density marker-based fingerprinting
of elite breeding lines is possible, this can be combined with pedigree information and
multi-environment performance data sets to greatly enhance the ability of conventional
breeding programs to design new cultivars, identify desirable recombinants, and track
factors controlling complex traits and trait combinations.
 
Publisher International Crops Research Institute for Semi-Arid Tropics
 
Date 2007
 
Type Monograph
NonPeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/5838/1/application_of_molecular_2007.pdf
Hash, C T and Hoisington, D A and Varshney, R K and et al, . (2007) Applications of molecular markers in breeding. Documentation. International Crops Research Institute for Semi-Arid Tropics, Patancheru, Andhra Pradesh, India. (Unpublished)