Identification of quantitative trait loci associated with sorghum susceptibility to Asian stem borer damage

Osinde, Cyprian, Sakamoto, Wataru, Kajiya-Kanegae, Hiromi, Sobhy, Islam S. ORCID: https://orcid.org/0000-0003-4984-1823, Tugume, Arthur K., Nsubuga, Anthony M. and Galis, Ivan 2023. Identification of quantitative trait loci associated with sorghum susceptibility to Asian stem borer damage. Journal of Plant Interactions 18 (1) , 2153182. 10.1080/17429145.2022.2153182

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Abstract

Sorghum (Sorghum bicolor (L.) Moench) is an important crop originated in Africa that shows susceptibility to herbivores. In this study, we identified two sorghum genotypes with highly contrasting levels of stem damage caused by the caterpillars of Asian stem borer (Ostrinia furnacalis Guenée). Recombinant inbred lines (RILs) from genetic cross between resistant (BTx623) and susceptible (NOG) sorghum were used to perform a quantitative trait locus (QTL) analysis in the field. Two major QTLs responsible for higher NOG infestation by stem borer in three independent field seasons were detected on chromosomes 7 and 9, interestingly in positions that overlapped with two major QTLs for plant height. As plant height and stem borer damage were highly correlated, we propose that sorghum height-associated morphological or physiological traits could be important for stem borer establishment and/or damage in sorghum.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Biosciences
Publisher:	Taylor and Francis Group
ISSN:	1742-9145
Funders:	Japan Society for Pro-motion of Science (JSPS) in Japan
Date of First Compliant Deposit:	19 January 2023
Date of Acceptance:	24 November 2022
Last Modified:	03 May 2023 08:37
URI:	https://orca.cardiff.ac.uk/id/eprint/156081

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