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Breeding Strategies for Utilization of Wild Species of Arachis in Groundnut Improvement

OAR@ICRISAT

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Relation http://oar.icrisat.org/4158/
 
Title Breeding Strategies for Utilization of Wild Species of Arachis in Groundnut Improvement
 
Creator Moss, J P
 
Subject Groundnut
 
Description Utilization of wild species entails brining genomes together and producing progenies which can be subjected to selection. The degree of similarity between species and between genomes dictates the techniques to be used. Studies on cytology, genetics, morphology, and evolution lead to a knowledge of species relationships, ploidy levels, and the taxonomic limits to hybridization. Closely related species at the same ploidy level present few problems. But genes controlling chromosome parrrng, and varralron rn number and posrl/on 01 chrasmala. may reduce or enhance the prodiiclron
of desrrable segreganls
Drllerences rn plordy level between wrld and cullrvaled specres presenl problenrs rn rnle~specrlrc
breedrng, but plordy manrpulal~onh as been successlully used. not only lo achreve lerlrlrly 111 slerrle
hybrrds, but also to adluslplordy levels prror lo hybrrdrzalron Ir~duclron01 haplordy also has a rolo lo
play
Aneuplordy. and subsfrlulron and addrlron Irnes can be uselul tools 1n the rdenlrlrralror~ and
manrpulalron erlher 01 chromosomes carryrng Ihe genes that are lo be lranslerr~ or 01 genes
conlrollrng parrrng or crossabrlrly that can be used lo lactlrlale gene lransler
Usrng these lechnrques, a wrde range 01 rnlerspec~lrc Arach~s hybrrds have bee11 prodi~ced a1
ICRISA T and derrvalrves wrth drsease resrslance andgoodyreld have been rnlrodrrced rnlo Itte lrrals
01 the All Indra Coordrnated Prolecl lor Orlswds
 
Date 1985
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4158/1/CP_205.pdf
Moss, J P (1985) Breeding Strategies for Utilization of Wild Species of Arachis in Groundnut Improvement. In: Proceedings of an International Workshop on Cytogenetics of Arachis, 31 Oct - 2 Nov 1983, Patancheru, Andhra Pradesh, India.