Record Details

Sorghum Genetic Resources: Conservation and Diversity Assessment for Enhanced Utilization in Sorghum Improvement

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/9052/
http://www.crcnetbase.com/doi/abs/10.1201/b17153-3
 
Title Sorghum Genetic Resources: Conservation and Diversity Assessment for Enhanced Utilization in Sorghum Improvement
 
Creator Upadhyaya, H D
Sharma, S
Dwivedi, S L
Singh, S K
 
Subject Sorghum
 
Description World collection of sorghum consists of 235,711 accessions, housed in
national and international genebanks, of which, ICRISAT genebank
holds 37,949 accessions, predominantly landraces from SAT regions.
Biologically, this collection represents all basic and intermediate races,
and geographic regions. Core/mini core, genotype-based reference
set or in some cases trait-based diversity panels have been developed.
These reduced subsets are in demand to discover new sources of
variation, dissect population structure and diversity, estimate linkage
disequilibria, map marker-trait associations, and mine allelic variations
associated with agronomically benefi cial traits. More emphasis should
also be to discover germplasm with novel seed quality traits imparting
health benefi ts. Few germplasm, such as IS 18758, IS 1054, and IS 33844,
have proved to be an excellent source of desirable plant type, high grain
yield, good grain quality, resistant to leaf diseases, and used extensively
in breeding programs at ICRISAT and elsewhere. New sources such
as IS 26962 and IS 23680 identifi ed as having high Fe and Zn serve as
potential parents for developing improved nutrient dense cultivars. In
addition, 34 germplasm lines have been directly released as cultivars
in 17 countries. There is a continuous need to identify germplasm lines
with multiple resistances to abiotic and biotic stresses and those with
novel seed quality traits to develop sorghum cultivars and hybrids
adapted to diverse agroclimatic conditions. A better understanding
of available genetic resources, genomic tools and resources including
sequenced variation in sorghum genome will assist germplasm
curators/breeders effi ciently conserve and utilize diverse germplasm
in sorghum improvement.
 
Publisher CRC Press (Taylor & Francis)
 
Contributor Wang, Y H
Upadhyaya, H D
Kole, C
 
Date 2014
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/9052/1/Chapter%202.pdf
Upadhyaya, H D and Sharma, S and Dwivedi, S L and Singh, S K (2014) Sorghum Genetic Resources: Conservation and Diversity Assessment for Enhanced Utilization in Sorghum Improvement. In: Genetics, Genomics and Breeding of Sorghum. Series on Genetics, Genomics and Breeding of Crop Plants . CRC Press (Taylor & Francis), Boca Raton, pp. 28-55. ISBN 9781482210088