African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Short Communication

Quantitative trait loci for head-bug resistance in sorghum

M. Deu1, A. Ratnadass2*, M. A. Hamada2, J.L. Noyer3, M. Diabate2† & J. Chantereau4
  1CIRAD-CA, UMR 1096/PIA, TA 40/03, F-34398 Montpellier, France 2ICRISAT-CIRAD, BP 320 Bamako, Mali 3CIRAD-AMIS, UMR 1096/PIA, TA 40/03, F-34398 Montpellier, France 4CIRAD-CA, Programme CALIM, TA 73/09, F-34398 Montpellier, France
Email: [email protected]

  •  Accepted: 23 December 2004
  •  Published: 31 March 2005

Abstract

 

QTLs were mapped in F2 progeny derived from a cross between the head-bug resistant sorghum cultivar Malisor 84-7 and susceptible S 34. The phenotypic evaluation was conducted in Mali. The mapped population consisted of 217 F2 plants, with 345 homologous and heterologous RFLP probes and 49 microsatellite markers tested. Eighty-one RFLP markers revealed polymorphism between the two parents, and 14 microsatellite markers gave usable amplification products. A genetic map including 92 loci distributed over 13 linkage groups, and covering a total distance of 1160 cM was built. Three significant and seven putative QTLs were detected and placed on the map.

 

Key words: Head-bug, Eurystylus oldi, sorghum, resistance, RFLP, microsatellite, QTL.

Copyright © 2024 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

Back to Vol. 4 No. 2
Back to articles
  • Articles on Google by:
SUBSCRIBE TO RSS
SUBMIT MANUSCRIPT
CONFERENCES