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Enhancing the value of legume genetic resources using core/mini core and applied genomic tools

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Relation http://oar.icrisat.org/4209/
 
Title Enhancing the value of legume genetic resources using core/mini core and applied genomic tools
 
Creator Upadhyaya, H D
Dwivedi, S L
Varshney, R K
Gowda, C L L
Bhattacharjee, R
Hoisington, D A
Vadez, V
 
Subject Food legumes
 
Description Grain legumes are rich resource of dietary proteins, minerals, and vitamins; however,
productivity remains low, narrow genetic base of the cultivars being one of the several reasons to low
productivity.
Worldwide approximately half a million legume germplasm acceSSIOns are preserved in
genebanks. However, there has been limited use of these resources in crop breeding. Core collection
(10% of the entire collection), a subset of accessions representing at least 70% of the genetic variation
in the entire collection of the species, has been suggested as a gateway to enhance utilization of
germpJasm. Core and mini core (10% of core) collections have been reported in several legumes that
when evaluated identified new sources of variation for agronomic traits including resistance to biotic
and abiotic stresses.
Legumes genomics resources in the past lagged behind cereals. However, situation dramatically
changed with emergence of Medicago truncatula, Lotus japonicus, and Glycine max as models for
comparative genomics within legume family. Several genomic resources including markers, maps,
transcriptomics, proteomics, metabolomics, and bioinformatics resources have been developed. These
resources in model plants will not only allow investigation of basic processes important to legumes, but
also open the possibility to transfer those processes to- or locate them in other crop species including
several legumes. Several genomic projects are developing tools for less-studied legumes which are
economically important in Africa and Asia.
These genetic and genomic resources represent major milestones in the history of legumes
research, which will help understand the evolutionary events that shaped legume genomes, and provide
avenues for genetic enhancement for sustainable agriculture.
 
Date 2009
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4209/1/Enhancing_the_value_of_legume_genetic_resources_using_core.pdf
Upadhyaya, H D and Dwivedi, S L and Varshney, R K and Gowda, C L L and Bhattacharjee, R and Hoisington, D A and Vadez, V (2009) Enhancing the value of legume genetic resources using core/mini core and applied genomic tools. In: International conference on Current trends in Biotechnology, 19-21 Feb. 2009, Meerut, India.