Inheritance of resistance to Russian wheat aphid in barley

Robinson, Jonathan; Delgado, Fernanda; Vivar, H.; Burnett, P. A.

doi:10.1007/bf00041755

Cited by 12 publications

(6 citation statements)

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“…Several studies have examined the genetics of RWA resistance in barley. Two studies indicated that single dominant or semidominant genes provided RWA resistance in lines from CIMMYT tested with a Mexican RWA population (Robinson et al, 1992) and from Iran tested with RWA from Iran (Assad et al, 1999). Further study indicated that the two CIMMYT lines, derived from the crosses Gloria/Come and ASE/2CM//B76BB, contained the same dominant gene .…”

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confidence: 99%

“…Two studies indicated that single dominant or semidominant genes provided RWA resistance in lines from CIMMYT tested with a Mexican RWA population (Robinson et al, 1992) and from Iran tested with RWA from Iran (Assad et al, 1999). Two studies indicated that single dominant or semidominant genes provided RWA resistance in lines from CIMMYT tested with a Mexican RWA population (Robinson et al, 1992) and from Iran tested with RWA from Iran (Assad et al, 1999).…”

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Biotype Differences for Resistance to Russian Wheat Aphid in Barley

et al. 2014

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Russian wheat aphid [RWA; Diuraphis noxia (Mordvilko)] is a worldwide insect pest of barley (Hordeum vulgare L.), causing crop losses each year. Previously identified resistant barley lines do not show variable reactions to the eight United States RWA biotypes identified by wheat reactions. However, additional RWA isolates have been identified outside the United States. The objective of this research was to determine whether additional RWA biotypes that impact resistance in barley exist and whether resistance to these biotypes is present in the resistant barley germplasm and cultivars that have been developed by the USDA‐ARS. A total of 166 barley lines were rated for chlorosis and leaf rolling in response to infestation with RWA United States’ biotype 1 and to individual isolates from Hungary, Chile, Mexico, and Iran. Each barley line was genotyped for 5912 single nucleotide polymorphism (SNP) markers, and the combined data were used for association mapping of loci associated with resistance to each RWA isolate. A total of 40 loci were associated with resistance to the five RWA isolates. Biotype differences were evident, with only 23 lines showing resistance to all five biotypes. Loci with large effects on mean chlorosis and rolling differences were found for resistance to biotypes from the United States, Hungary, and Chile, while the loci for resistance to biotypes from Mexico and Iran had small effects on these traits, which may pose problems for developing resistant germplasm. The 23 lines resistant to all biotypes included 10 unadapted germplasm accessions and 13 improved germplasm lines and provide useful germplasm for developing new barley cultivars with resistance to multiple RWA biotypes.

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Biotype Differences for Resistance to Russian Wheat Aphid in Barley

et al. 2014

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“…Genetic analyses of resistance based on biparental mapping populations indicates some lines show dominant single gene resistance to RWA (Robinson et al, 1992; Assad et al, 1999) while others show more complex interactions between multiple additive and dominant genes (Mornhinweg et al, 1995b, 2002; Nieto‐Lopez and Blake 1994). Quantitative trait loci (QTL) for resistance have been located on chromosomes 1H, 2H, and 3H (Nieto‐Lopez and Blake, 1994; Raman and Read, 2000).…”

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Association Mapping of Russian Wheat Aphid Resistance in Barley as a Method to Identify Diversity in the National Small Grains Collection

Dahleen¹,

Bregitzer²,

Mornhinweg³

et al. 2012

Crop Science

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Russian wheat aphid (RWA) {Diuraphis noxiaKurdjumov) infestations of barley {Hordeum vulgäre L.) cause chlorotic leaf spotting and streaking and prevent unrolling of leaves, which traps spikes and reduces grain yield. Resistant accessions identified in the USDA-ARS National Small Grains Collection (NSGC) were used to develop adapted, resistant gernnplasm and cultivars. This study identified loci affecting RWA resistance and diversity in the NSGC using association mapping. Resistant and susceptible accessions, breeding lines, and cultivars were genotyped with Diversity Arrays Technology (DArT) markers and phenotyped for RWA responses. A core set of nine markers explained 83% of the variation for chlorosis. Most resistant and susceptible accessions had opposite genotypes at each of these markers. The six susceptible adapted cultivars were exceptions and shared the haplotype of the resistant accessions. Variability at four additional loci associated with resistance did not sufficiently explain phenotypic variability between resistant accessions and susceptible cultivars. Examining subsets of the data identified six additional markers associated with RWA response, which discriminated between resistant accessions and susceptible cultivars. Additional investigation is necessary to better understand the genetics of RWA resistance. However, this study provided useful information on diversity in the NSGC and suggested that RWA resistance is a complex trait that may share physiological components with other characteristics that were selected during domestication.

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“…Since the first report of host plant resistance to D. noxia in Triticum monococcum (Einkorn), line A 544, and other T monococcumlT durum amphiploids (du Toit & van Niekerk, 1985) many other sources of resistance have been described. The international trend for reducing the impact of D. noxia on small grains is the use of Russian wheat aphid resistant cultivars (Webster et aI., 1987;Ou Toit, 1989b;Nkongolo et at., 1991;Robinson, et at., 1992). A number of D. noxia resistant cultivars have been released for commercial use in South Africa and have been shown to have a yield advantage above susceptible cultivars in farmers fields (Marasas et aI., 1997).…”

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confidence: 93%

Inheritance of resistance to Russian wheat aphid, Diuraphis noxia (Homoptera: Aphididae) in two wheat lines

Tolmay¹,

Deventer

Westhuizen

1999

South African Journal of Plant and Soil

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The Russian wheat aphid, Diuraphis noxia, is a serious pest of wheat grown in the summef rainfall regions of South Africa. The use of D. noxia resistant cultivars may reduce the impact of this pest on cereal production, at the same time reducing environmental risks and minimizing control costs. The objective of the study was to determine the inheritance of D. noxia resistance present in the lines OSU ID 2808 (Triticum aestivum) and Aus 22498 (Triticum aestivum var. vavi10vl) in order to ensure their judicious use in a backcross breeding programme. Resistant lines OSU ID 2808 and Aus 22498 were crossed with the susceptible cultivar Tugela after being screened with D. noxia. Resistance reactions of the F 1 , BC 1 and F2 plants, and individual F2 plant derived F3 families indicated that the resistance in both genotypes is controlled by single dominant genes. It is unknown whether these genes are identical to any known, designated resistance genes or each other.In Suid-Afrika is die Russiese koringluis, Diuraphis noxia, 'n ernstige plaag van aangeplante koring in die somerreenvalgebied. Die gebruik van D. noxia weerstandbiedende kultivars kan die impak van hierdie plaag op graanproduksie verminder en terselfdertyd omgewingsrisikos en beheerkostes verlaag. Die doel van hierdie studie was om die oorerwing van D. noxia weerstand in die Iyne OSU ID 2808 (Triticum aestivum) and Aus 22498 (Triticum aestivum var. vaviiovl) te bepaal, sodat die Iyne effektief in 'n terugkruisingsprogram benut kan word. Die weerstandslyne OSU ID 2808 en Aus 22498 is met die vatbare kultivar Tugela gekruis na toetsing met D. noxia. Weerstandsre~ksies van die F 1 , TK1 en F2 plante asook die van die F3 families vanaf enkel F2 plante toon dat die weerstand in albei genotipes deur enkel dominante gene beheer word. Dit is onbekend of die gene dieselfde is as ander bekende, benaamde gene, of mekaar.

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Inheritance of resistance to Russian wheat aphid in barley

Cited by 12 publications

References 13 publications

Biotype Differences for Resistance to Russian Wheat Aphid in Barley

Biotype Differences for Resistance to Russian Wheat Aphid in Barley

Association Mapping of Russian Wheat Aphid Resistance in Barley as a Method to Identify Diversity in the National Small Grains Collection

Inheritance of resistance to Russian wheat aphid, Diuraphis noxia (Homoptera: Aphididae) in two wheat lines

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