Breeding for resistance to head blight caused by Fusarium spp. in wheat.

Abstract

Fusarium diseases of cereals, particularly wheat, are a persistent threat to food and feed safety and security. Apart from yield losses, the contamination of the crop with Fusarium mycotoxins is of great concern. Among other measures, the deployment of Fusarium-resistant cultivars plays a key role in integrated Fusarium control and the reduction of mycotoxin contamination in feed and food. In this review, genetic diversity for Fusarium resistance in wheat and its close relatives, evaluation methods for assessing quantitative resistance and tools for breeding Fusarium-resistant cultivars are presented and critically discussed.

Fusarium Head Blight and Rust Diseases in Soft Red Winter Wheat in the Southeast United States: State of the Art, Challenges and Future Perspective for Breeding

“…While Sumai 3 has been extensively used in North America, other regions are either relying on different sources of Fhb1 such as Shinchunaga in Japan and Norin 129 and Nigmai 9 in China or even dropping Fhb1 due to preferential selection for the stem rust gene Sr2 in International Maize and Wheat Improvement Center (CIMMYT) as both of these genes are linked in repulsion (Buerstmayr et al, 2019). Besides Sumai 3, novel sources of FHB resistance from several other Asian cultivars or landraces such as Chokwang conferring type II resistance from Korea and Wangshuibai, Nyu-Bai and Nobeokabozu and their descendants CM-82036 and Ning7840 from China are widely used in US wheat breeding programs (Yang et al, 2005;Buerstmayr et al, 2009;Buerstmayr et al, 2014;Li et al, 2016b;Buerstmayr et al, 2019). Before the introduction of Sumai 3, US wheat breeding programs primarily used type I resistance sourced from Brazilian donor cultivar Frontana with stable QTL reported on chromosomes 3AL and 5A (Steiner et al, 2004;Buerstmayr et al, 2009).…”

“…Reviews at the turn of the twenty-first century included epidemiology ( Parry et al, 1995 ) and conventional breeding of FHB ( Mesterhazy, 1995 ; Miedaner, 1997 ; Mesterházy et al, 1999 ). More recently, reviews of the literature have been published on diverse fields of FHB resistance including QTL mapping and marker-assisted selection (MAS) ( Buerstmayr et al, 2009 ; Gupta et al, 2010 ; Shah et al, 2017 ), genomic selection (GS) ( Larkin et al, 2019 ), and resistance breeding ( Kosová et al, 2009 ; Buerstmayr et al, 2014 ; Steiner et al, 2017 ; Buerstmayr et al, 2019 ; Zhu et al, 2019 ). Similarly, review papers on broad aspects of breeding and genomic selection ( Todorovska et al, 2009 ), epidemiology ( Eversmeyer and Kramer, 2000 ; Brown and Hovmøller, 2002 ; Chen, 2005 ; Bolton et al, 2008 ; Jin et al, 2010 ; Zhao et al, 2016 ), and host resistance ( Kolmer, 1996 ; Chen, 2007 ; Kolmer et al, 2007 ; Singh et al, 2011 ; Kolmer, 2013 ; Ellis et al, 2014 ; Aktar-Uz-Zaman et al, 2017 ; McIntosh et al, 2017 ) on LR and SR have been presented.…”

The Influence of the Dilution Rate on the Aggressiveness of Inocula and the Expression of Resistance against Fusarium Head Blight in Wheat

“…Breeding for Fusarium head blight (FHB) resistance is the most effective means of providing useful protection of wheat [1,2]. It is well known that resistance to Fusarium graminearum and Fusarium culmorum is not race-specific [3][4][5][6][7].…”

Molecular Mapping of QTLs Conferring Fusarium Head Blight Resistance in Chinese Wheat Cultivar Jingzhou 66

“…Genetic dissection of FHB resistance has identified hundreds of quantitative trait loci (QTL) distributed across all wheat chromosomes [ 3 , 4 , 12 ]. A QTL meta-analysis assigned 556 QTL related to FHB resistance into 65 meta-QTLs [ 13 ]; however, only a few have been verified to exert major effects on FHB resistance, whereas most have only minor effects [ 14 ].…”