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Molecular mapping of dry root rot resistance genes in chickpea (Cicer arietinum L.)

OAR@ICRISAT

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Relation http://oar.icrisat.org/11840/
https://doi.org/10.1007/s10681-021-02854-4
doi:10.1007/s10681-021-02854-4
 
Title Molecular mapping of dry root rot resistance genes in chickpea (Cicer arietinum L.)
 
Creator Karadi, A
Samineni, S
Sajja, S
Sharma, M
Thudi, M
Mallikarjuna, B P
Viswanatha, K P
Varshney, R K
Gaur, P M
 
Subject Chickpea
Genetics and Genomics
Plant Disease
 
Description Dry root rot (DRR) caused by Rhizoctonia
bataticola [(Taub.) Butler] is an emerging disease of
chickpea (Cicer arietinum L.) and a serious constraint
to chickpea production in warm and arid regions. To
identify the genomic regions conferring resistance to
DRR, a total of 182 F9 derived Recombinant Inbred
Lines (RILs) were developed from the cross between a
susceptible line BG 212 and moderately resistant
breeding line ICCV 08305. The parental lines and
RILs were screened against Rb 6 isolate of R.
bataticola using paper towel method under controlled environment at ICRISAT during 2016 and 2017. The
RILs were genotyped with cost-effective SNP genotyping
platform, Affymetrix Axiom CicerSNP
array. As a result, a high-density genetic map with
13,110 SNP markers spanning 1224.11 cM with an
average inter marker distance of 0.09 cM was developed.
A single minor QTL (‘qDRR-8’) explaining
6.70% PVE with LOD scores 3.34 was identified on
CaLG08 for DRR resistance which could be further
explored for mining candidate genes and the linked
SNP markers could be further validated for application
in marker-assisted selection of DRR resistance in
chickpea breeding programs.
 
Publisher Springer
 
Date 2021-05
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11840/1/2021%20Karadi%20et%20al%20-%20Molecular%20mapping%20of%20DRR%20resistance%20genes%20in%20chickpea%20-%20Euphytica.pdf
Karadi, A and Samineni, S and Sajja, S and Sharma, M and Thudi, M and Mallikarjuna, B P and Viswanatha, K P and Varshney, R K and Gaur, P M (2021) Molecular mapping of dry root rot resistance genes in chickpea (Cicer arietinum L.). Euphytica (TSI), 217 (6). pp. 1-13. ISSN 0014-2336