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Mapping QTL for resistance to botrytis grey mould in chickpea

OAR@ICRISAT

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Relation http://oar.icrisat.org/4425/
http://dx.doi.org/10.1007/s10681-011-0394-1
 
Title Mapping QTL for resistance to botrytis grey mould in chickpea
 
Creator Anuradha, C
Gaur, P M
Pande, S
Gali, K K
Ganesh, M
Kumar, J
Varshney, R K
 
Subject Chickpea
 
Description Botrytis grey mould (BGM) caused by Botrytis cinerea Pers. ex. Fr. is the second most important foliar disease of chickpea (Cicer arietinum L.) after ascochyta blight. An intraspecific linkage map of chickpea consisting of 144 markers assigned on 11 linkage groups was constructed from recombinant inbred lines (RILs) of a cross that involved a moderately resistant kabuli cultivar ICCV 2 and a highly susceptible desi cultivar JG 62. The length of the map obtained was 442.8 cM with an average interval length of 3.3 cM. Three quantitative trait loci (QTL) which together accounted for 43.6% of the variation for BGM resistance were identified and mapped on two linkage groups. QTL1 explained about 12.8% of the phenotypic variation for BGM resistance and was mapped on LG 6A. It was found tightly linked to markers SA14 and TS71rts36r at a LOD score of 3.7. QTL2 and QTL3 accounted for 9.5 and 48% of the phenotypic variation for BGM resistance, respectively, and were mapped on LG 3. QTL 2 was identified at LOD 2.7 and flanked by markers TA25 and TA144, positioned at 1 cM away from marker TA25. QTL3 was a strong QTL detected at LOD 17.7 and was flanked by TA159 at 12 cM distance on one side and TA118 at 4 cM distance on the other side. This is the first report on mapping of QTL for BGM resistance in chickpea. After proper validation, these QTL will be useful in marker-assisted pyramiding of BGM resistance in chickpea
 
Publisher Springer
 
Date 2011
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4425/1/Euphytica_182_1_1%E2%80%939_2011.pdf
Anuradha, C and Gaur, P M and Pande, S and Gali, K K and Ganesh, M and Kumar, J and Varshney, R K (2011) Mapping QTL for resistance to botrytis grey mould in chickpea. Euphytica, 182 (1). pp. 1-9. ISSN 0014-2336