Co-localization of quantitative trait loci for foliar disease resistance in sorghum

S. M. Mohan; R. Madhusudhana; K. Mathur; C. J. Howarth; G. Srinivas; K. Satish; R. N. Reddy; N. Seetharama

doi:10.1111/j.1439-0523.2008.01610.x

Co-localization of quantitative trait loci for foliar disease resistance in sorghum

S. M. Mohan, R. Madhusudhana, K. Mathur, C. J. Howarth, G. Srinivas, K. Satish, R. N. Reddy, N. Seetharama

Department of Life Sciences

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Quantitative trait loci (QTL) analysis of resistance to three foliar diseases, viz. target leaf spot, zonate leaf spot and drechstera leaf blight was undertaken in sorghum using 168 F7 recombinant inbred lines derived from a cross between '296B' (resistant) and 'IS18551' (susceptible) parents. The genomic region flanked by plant colour locus (Plcor) and simple sequence repeat marker Xtxp95 on chromosome SBI-06 harboured disease-response QTL for all the three diseases caused by different fungal pathogens. It is hypothesized that this region on sorghum chromosome SBI-06 could harbour a cluster of disease-response loci to different pathogens as observed in the syntenic regions on rice chromosome 4 and maize chromosome 2. The information gained in this study can be used in deploying marker-assisted selection for foliar resistance and map-based isolation of important disease resistance genes in sorghum.

Original language	English
Pages (from-to)	532-535
Number of pages	4
Journal	Plant Breeding
Volume	128
Issue number	5
Early online date	22 Apr 2009
DOIs	https://doi.org/10.1111/j.1439-0523.2008.01610.x
Publication status	Published - Oct 2009

Keywords

Sorghum
foliar diseases
disease resistance
quantitative trait loci mapping

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title = "Co-localization of quantitative trait loci for foliar disease resistance in sorghum",

abstract = "Quantitative trait loci (QTL) analysis of resistance to three foliar diseases, viz. target leaf spot, zonate leaf spot and drechstera leaf blight was undertaken in sorghum using 168 F7 recombinant inbred lines derived from a cross between '296B' (resistant) and 'IS18551' (susceptible) parents. The genomic region flanked by plant colour locus (Plcor) and simple sequence repeat marker Xtxp95 on chromosome SBI-06 harboured disease-response QTL for all the three diseases caused by different fungal pathogens. It is hypothesized that this region on sorghum chromosome SBI-06 could harbour a cluster of disease-response loci to different pathogens as observed in the syntenic regions on rice chromosome 4 and maize chromosome 2. The information gained in this study can be used in deploying marker-assisted selection for foliar resistance and map-based isolation of important disease resistance genes in sorghum.",

keywords = "Sorghum, foliar diseases, disease resistance, quantitative trait loci mapping",

author = "Mohan, {S. M.} and R. Madhusudhana and K. Mathur and Howarth, {C. J.} and G. Srinivas and K. Satish and Reddy, {R. N.} and N. Seetharama",

note = "Mohan, S. M., Madhusudhana, R., Mathur, K., Howarth, C. J., Srinivas, G., Satish, K., Reddy, R. N., Seetharama, N. (2009). Co-localization of quantitative trait loci for foliar disease resistance in sorghum. Plant Breeding, 128, (5), 532-535. IMPF: 01.03 RONO: 1700 6445;AC 03130;6445 ; BBS/E/W/00003130B Sponsorship: BBSRC, DIFD Grant No: R7375; BBSRC: Department of Science and Technology; Government of India ",

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AU - Mohan, S. M.

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AU - Srinivas, G.

AU - Satish, K.

AU - Reddy, R. N.

AU - Seetharama, N.

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AB - Quantitative trait loci (QTL) analysis of resistance to three foliar diseases, viz. target leaf spot, zonate leaf spot and drechstera leaf blight was undertaken in sorghum using 168 F7 recombinant inbred lines derived from a cross between '296B' (resistant) and 'IS18551' (susceptible) parents. The genomic region flanked by plant colour locus (Plcor) and simple sequence repeat marker Xtxp95 on chromosome SBI-06 harboured disease-response QTL for all the three diseases caused by different fungal pathogens. It is hypothesized that this region on sorghum chromosome SBI-06 could harbour a cluster of disease-response loci to different pathogens as observed in the syntenic regions on rice chromosome 4 and maize chromosome 2. The information gained in this study can be used in deploying marker-assisted selection for foliar resistance and map-based isolation of important disease resistance genes in sorghum.

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Co-localization of quantitative trait loci for foliar disease resistance in sorghum

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