Identification of Russian Wheat Aphid (Homoptera: Aphididae) Populations Virulent to the &lt;I&gt;Dn4&lt;/I&gt; Resistance Gene

Smith, C. Michael; Belay, Tesfay; Stauffer, Christian; Starý, Petr; Kubeckova, Irenka; Starkey, Sharon

doi:10.1603/0022-0493(2004)097[1112:iorwah]2.0.co;2

Cited by 43 publications

(4 citation statements)

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“…The usefulness of the resistant genotypes we found, especially those with resistance to R. padi and S. avenae, will be largely determined by the genetic variation in aphid populations. It is well known that aphid virulence can vary in different geographic areas, as demonstrated for the Russian wheat aphid (Haley et al 2004;Smith et al 2004a;Weiland et al 2008). Several unique S. graminum biotypes in the USA differ in virulence patterns to resistant cultivars (Burd and Porter 2006), and were present before resistant cultivars were grown (Porter et al 1997).…”

Section: Discussionmentioning

confidence: 99%

Resistance to multiple cereal aphids in wheat–alien substitution and translocation lines

Crespo‐Herrera

Smith

Singh

et al. 2013

Arthropod-Plant Interactions

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Rhopalosiphum padi, Schizaphis graminum, and Sitobion avenae are three of the most destructive aphid species of wheat (Triticum aestivum L.). They can significantly reduce wheat yields directly by feeding and indirectly by transmitting viruses. This study aimed to search for resistance to these aphid species among lines derived from different rye (Secale cereale) origins and from Aegilops speltoides, all in the genetic background of the wheat cultivar Pavon F76. Resistance was quantified as aphid weight (R. padi, S. avenae, S. graminum), and number of aphids and percentage of infested leaf area exhibiting chlorosis (S. graminum). The most resistant genotypes reduced R. padi and S. avenae weight by 24.2% and 34.3%, respectively, at the seedling stage, compared to Pavon F76 control plants. Strong S. graminum resistance was found only in Ae. speltoides-derived lines, the most resistant of which (7A.7S-L5) sustained just 3% chlorosis and reduced S. graminum colony weight by 67.7%. One line carrying the 1AL.1RS am wheat-rye translocation from Amigo wheat (originally from Insave rye) reduced S. avenae weight by 23.2 and 21.8% in seedling and adult plants, respectively. Single genotypes carrying the complete 1R chromosome or the 1RS chromosome arm derived from E12165 wheat and Presto triticale proved to be resistant to both R. padi and S. avenae at the seedling stage. Further research should be conducted to unravel the genetic basis of resistance to these aphids in 1RS genotypes. The sources of resistance identified here may be useful for incorporating multiple aphid species resistance in wheat breeding programs, particularly for R. padi and S. avenae, to which no resistant wheats have been bred.

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Section: Discussionmentioning

confidence: 99%

Resistance to multiple cereal aphids in wheat–alien substitution and translocation lines

Crespo‐Herrera

Smith

Singh

et al. 2013

Arthropod-Plant Interactions

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“…Aphid resistance can be conferred polygenically or monogenically and the genes are often located in resistance gene clusters within specifi c chromosomal regions (Dogimont et al, 2010). To date, 12 named RWA resistance genes (Dn genes) have been identifi ed: Dn1 and Dn2 (Du Toit, 1987, 1988, 1989, dn3 and Dn4 (Nkongolo et al, 1991a, b), Dn5 (Marais and Du Toit, 1993), Dn6 (Saidi and Quick, 1996), Dn7 (Marais et al, 1994), Dn8, Dn9, and Dnx (Harvey and Martin, 1990;Liu et al, 2001), Dny (Smith et al, 2004), and resistance conferred by the cereal introduction CI 2401 (consisting of two R genes, one allelic to Dn4 and the other diff erent from known Dn genes) (Collins et al, 2005;Dong et al, 1997;Voothuluru et al, 2006). Chromosomal locations of many of these genes have been identifi ed.…”

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confidence: 99%

“…The most recent study conducted by Liu et al (2005) concluded that Dn1, Dn2, Dn5, Dn6, and Dnx were either allelic at the same locus or located in a Dn gene cluster and tightly linked to each other and to simple sequence repeat (SSR) marker Xgwm111. Despite the identifi cation and characterization of these genes, all except Dn7 are ineff ective against the most virulent biotype, RWA2 (Collins et al, 2005;Haley et al, 2004;Peng et al, 2007;Smith et al, 2004).…”

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Inheritance and Genetic Mapping of Russian Wheat Aphid Resistance in Iranian Wheat Landrace Accession PI 626580

et al. 2012

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Russian wheat aphid (RWA), Diuraphis noxia (Kurdjumov), is a significant insect pest of wheat {Triticum aestivum L.) and has had a major economic impact worldwide, especially on winter wheat in the western United States. Development of resistant cultivars remains the most viable method for RWA control, although the continuing emergence of new RWA biotypes virulent to deployed resistance genes reinforces the need for the discovery of new sources of resistance. Iranian wheat landrace accession PI 626580 has shown high levels of resistance to RWA biotypes 1 (RWA1) and 2 (RWA2), but the inheritance and chromosomal location of this resistance is unknown. The objectives of this study were to determine the inheritance of RWA2 resistance, identify closely linked markers, and map the chromosomal location of RWA2 resistance found in PI 626580. Bulked segregant analysis was conducted with a mapping population of 154 F^ individuals derived from a single plant selection made from PI 626580 and 'Yuma' (a susceptible wheat cultivar). Phenotypic segregation of RWA2 resistance suggested a single dominant gene, provisionally designated Dn626580. Linkage mapping analysis identified three simple sequence repeat (SSR) markers, Xbarc214, Xgwm473, and Xgwm437, proximally linked to Dn626580 near the centromere on the short arm of chromosome 7D at distances of 1.8, 5.0, and 8.2 cM, respectively. Dn626580, a new resistance gene found in PI 626580, could be used alone or by pyramiding with other resistance genes to develop cultivars with effective RWA resistance.

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“…Basky (2003) reported that wheat cultivars resistant to RWA isolates of South Africa were susceptible to Hungarian RWA populations, indicating that RWA biotypes are different between the two countries. Russian wheat aphid populations from Central Europe, North Africa, and South America also produced different virulence profiles to a set of cultivars carrying different known genes (Smith et al, 2004). Moreover, a sexually reproduced RWA population with a high degree of biotypic diversity has been discovered in the high plateau region of western Colorado (Puterka et al, 2012).…”

Section: Crop Sciencementioning

confidence: 99%

Identification of wheat germplasm resistant to major Russian wheat aphid biotypes in the United States

Carver

et al. 2020

Crop Science

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Russian wheat aphid (Diuraphis noxia Kurdjumov [RWA]) is one of the most invasive and detrimental pests, and host plant resistance is the most efficient approach to manage RWA. Wheat (Triticum aestivum L.) accessions resistant to RWA biotype 1 (RWA1) and biotype 2 (RWA2) were previously identified by screening wheat accessions available at the USDA-ARS National Small Grains Collection. However, RWA biotypic variation necessitates a continuous search for sources of resistance to new RWA biotypes. The objective of this study was to identify wheat accessions resistant to all major RWA biotypes in the United States. A set of 172 RWA-resistant wheat accessions, mainly Iranian landraces, were evaluated for responses to five predominant U.S. biotypes-RWA1, RWA2, RWA3, RWA6, and RWA8-in controlled environments. Of these, 137 accessions showed homogeneous or heterogeneous resistance to at least one biotype, and 14 of them were resistant or highly resistant to all five biotypes. Another set of 19 accessions were resistant or highly resistant to two to four biotypes. These RWA-resistant accessions are valuable sources for RWA resistance improvement, and further purification of some accessions and characterization of the underlying RWA resistance genes are imperative for their utilization in wheat breeding. 1428wileyonlinelibrary.com/journal/csc2

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Identification of Russian Wheat Aphid (Homoptera: Aphididae) Populations Virulent to the <I>Dn4</I> Resistance Gene

Cited by 43 publications

References 18 publications

Resistance to multiple cereal aphids in wheat–alien substitution and translocation lines

Resistance to multiple cereal aphids in wheat–alien substitution and translocation lines

Inheritance and Genetic Mapping of Russian Wheat Aphid Resistance in Iranian Wheat Landrace Accession PI 626580

Identification of wheat germplasm resistant to major Russian wheat aphid biotypes in the United States

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