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Molecular genetics and breeding of grain legume crops for the semi-arid tropics

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Title Molecular genetics and breeding of grain legume crops for the semi-arid tropics
 
Creator Varshney, Rajeev K.
Hoisington, David A.
Upadhyaya, Hari D.
Gaur, Pooran M.
Nigam, Shyam N.
Saxena, Kulbhushan
Vadez, Vincent
Sethy, Niroj K.
Bhatia, Sabhyata
Aruna, Rupakula
Gowda, M. V. Channabyre
Singh, Nagendra K.
 
Subject SEMI-ARID TROPICS
MOLECULAR GENETICS
GRAIN LEGUME CROPS
MOLECULAR BREEDING
 
Description Grain legumes are important crops for providing key components in the diets of
resource-poor people of the semi-arid tropic (SAT) regions of the world. Although
there are several grain legume crops grown in SAT, the present chapter deals with
three important legumes i.e. groundnut or peanut (Arachis hypogaea), chickpea (Cicer
arietinum) and pigeonpea (Cajanus cajan). Production of these legume crops are
challenged by serious abiotic stresses e.g. drought, salinity as well as several fungal,
viral and nematode diseases. To tackle these constraints through molecular breeding,
some efforts have been initiated to develop genomic resources e.g. molecular markers,
molecular genetic maps, expressed sequence tags (ESTs), macro-/micro- arrays,
bacterial artificial chromosomes (BACs), etc. These genomic resources together with
recently developed genetic and genomics strategies e.g. functional molecular markers,
linkage-disequilibrium (LD) based association mapping, functional and comparative
genomics offer the possibility of accelerating molecular breeding for abiotic and biotic
stress tolerances in the legume crops. However, low level of polymorphism present in
the cultivated genepools of these legume crops, imprecise phenotyping of the germplasm
and the higher costs of development and application of genomic tools are critical factors
in utilizing genomics in breeding of these legume crops.
 
Date 2013-11-06T06:52:47Z
2013-11-06T06:52:47Z
2007
October 2007
 
Type Article
 
Identifier In: Varshney RK, Tuberosa R (eds), Genomics Assisted Crop Improvement, Vol. 2: Genomics Applications in Crops. Springer, Dordrecht, The Netherlands, pp 207-241
http://hdl.handle.net/123456789/78
 
Language en
 
Publisher Springer