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Research paper | Open Access

Integration of QTL detection and marker assisted selection for improving resistance to Fusarium head blight and important agronomic traits in wheat

Chao Lva,b,, Yanxia Songb, Lifeng Gaob, Qin Yaob, Ronghua Zhoub, Rugen Xua, Jizeng Jiab( )
Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology/Key Laboratory of Plant Functional Genomics of Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, China
Key Laboratory of Crop Germplasm and Biotechnology, Ministry of Agriculture/National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China

Peer review under responsibility of Crop Science Society of China and Institute of Crop Science, CAAS.

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Abstract

Fusarium head blight (FHB), caused by Fusarium graminearum, is one of the most destructive wheat (Triticum aestivum L.) diseases worldwide. Identification of quantitative trait loci (QTL) conferring FHB resistance followed by marker assisted selection (MAS) is an efficient approach to breed FHB-resistant varieties. In this study, 38 additive QTL and 18 pairs of epistatic QTL for FHB resistance were detected in four environments using a population of recombinant inbred lines (RILs) derived from varieties Neixiang 188 and Yanzhan 1. Six QTL clusters were located on chromosomes 2D, 4B, 4D, 5A, 5D and 7B, suggesting possible polytrophic functions. Six elite lines with good FHB resistance and agronomic traits were selected from the same population using the associated markers. Our results suggest that MAS of multiple QTL will be effective and efficient in wheat breeding.

Keywords

Triticum aestivumFusarium graminearumFHBHead scab
The Crop Journal
Volume 2 Issue 1,
February 2014
Pages 70-78
DOI: 10.1016/j.cj.2013.10.004
Cite this article:
Lv C, Song Y, Gao L, et al. Integration of QTL detection and marker assisted selection for improving resistance to Fusarium head blight and important agronomic traits in wheat. The Crop Journal, 2014, 2(1): 70-78. https://doi.org/10.1016/j.cj.2013.10.004

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Received: 10 May 2013
Revised: 12 September 2013
Accepted: 15 October 2013
Published: 05 November 2013
© 2013 Crop Science Society of China and Institute of Crop Science, CAAS.
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