Resistance to Rhopalosiphum padi (Homoptera: Aphididae) in Triticale and Triticale-Derived Wheat Lines Resistant to Diuraphis noxia (Homoptera: Aphididae)

2007 ◽  
Vol 42 (2) ◽  
pp. 217-227 ◽  
Author(s):  
Louis S. Hesler ◽  
Scott D. Haley ◽  
Kabwe K. Nkongolo ◽  
Frank B. Peairs
Keyword(s):  
Population Growth ◽  
Development Time ◽  
Rhopalosiphum Padi ◽  
Russian Wheat Aphid ◽  
Diuraphis Noxia ◽  
Significant Source ◽  
Choice Tests ◽  
Strong Source ◽  
Wheat Lines

Rhopalosiphum padi (L.) (bird cherry-oat aphid) and Diuraphis noxia (Mordvilko) (Russian wheat aphid) are common aphid pests of wheat and can cooccur at relatively high levels within wheat fields. Resistance to both aphids has been identified in several triticale accessions. We conducted experiments to identify and characterize antibiosis-type resistance to R. padi in additional triticale lines and to test R. padi-resistance levels in several backcrossed, triticale-derived lines of D. noxia-resistant wheat. Triticale accessions ‘6A-558’, ‘H85-734’ and ‘M86-6174’ were identified with moderate levels of antibiosis to R. padi. All three accessions limited R. padi population growth relative to ‘Arapahoe’ over 13 d. 6A-558 increased development time of R. padi compared to that on Arapahoe, and 6A-558, H85-734 and M86-6174 each decreased the number of nymphs produced by R. padi over 7 d. Additional tests confirmed ‘N1185’ triticale as a strong source of resistance to R. padi, and showed that ‘Lamar’ wheat was not resistant to R. padi. Tests of wheat lines derived from crosses between N1185 and Lamar and then selected for resistance to D. noxia showed that three of 13 lines reduced the number of R. padiper plant, with resistance levels comparable to N1185 in two lines. Nymphiposition by R. padi measured over a 24-h period did not differ among any lines in no-choice tests. The results provide further support that triticale is a significant source of resistance to R. padi, but further work is needed to understand transference of R. padi-resistance from triticale to wheat.

Plant resistance to the Russian wheat aphid: effects on a nontarget aphid and the role of induction

2004 ◽  
Vol 136 (1) ◽  
pp. 129-137 ◽  
Author(s):  
Frank J. Messina ◽  
Ashley J. Bloxham
Keyword(s):  
Triticum Aestivum ◽  
Plant Resistance ◽  
Rhopalosiphum Padi ◽  
Russian Wheat Aphid ◽  
Diuraphis Noxia ◽  
Resistant Lines ◽  
Aphid Feeding ◽  
Species Performance ◽  
Different Sources

AbstractSeveral resistant lines of wheat, Triticum aestivum (L.) (Poaceae), have been developed to control populations of the Russian wheat aphid, Diuraphis noxia (Mordvilko) (Hemiptera: Aphididae). We examined the potential effects of D. noxia resistant lines on another aphid, the bird cherry-oat aphid (Rhopalosiphum padi (L.) (Hemiptera: Aphididae)), which commonly co-occurs with D. noxia. Because one type of resistance (mediated by the Dn1 gene) is purported to be induced rather than constitutive, we also determined the degree to which the suitability of resistant and susceptible plants is modified by previous infestation. Although resistant lines were derived from five different sources, we did not detect any differences in the population growth of R. padi on resistant and near-isogenic susceptible plants. The performance of D. noxia was reduced as expected on resistant plants but was unaffected by whether or not plants had been previously infested. In contrast, the performance of R. padi was reduced on plants that had been previously infested but was unaffected by whether plants were resistant or susceptible to D. noxia. Because neither species' performance was especially low on previously infested, resistant plants, there was no evidence that prior aphid feeding induces a higher level of resistance.

The allelic relationships among Russian wheat aphid resistance genes in two Iranian wheat lines and known genes

2002 ◽  
Vol 138 (3) ◽  
pp. 281-284 ◽  
Author(s):  
A. ESTAKHR ◽  
M. T. ASSAD
Keyword(s):  
Resistance Gene ◽  
Resistance Genes ◽  
Genetic Resistance ◽  
Russian Wheat Aphid ◽  
Diuraphis Noxia ◽  
Virulent Strains ◽  
Resistant Lines ◽  
Additional Protection ◽  
Wheat Lines ◽  
Effective Source

The availability of more resistance genes to Russian wheat aphid (RWA), Diuraphis noxia (Mordvilko) may provide additional protection from new virulent strains or biotypes of the insect. This genetic study was conducted to determine the allelic relationships of resistance genes in two Iranian wheat (Triticum aestivum L.) lines, SHZ.W.102 and SHZ.W.104 and lines PI 137739, PI 262660, PI 372129, PI 294994 and PI 243781, carrying resistance genes Dn1, Dn2, Dn4, Dn5 and Dn6 respectively. The two Iranian lines were crossed to each of the other resistant lines, and F1 and F2 seedlings were screened for RWA reaction. The resistance gene in 102 was allelic to Dn1, however, the resistance gene in 104 was different from other known genes. The resistant line 104 is an effective source of genetic resistance to RWA and the gene symbol Dn7 is proposed for its resistance gene.

Impact of Diuraphis noxia and Rhopalosiphum padi (Hemiptera: Aphididae) on Primary Physiology of Four Near-Isogenic Wheat Lines

2009 ◽  
Vol 102 (1) ◽  
pp. 412-421 ◽  
Author(s):  
Tulio B. Macedo ◽  
Robert K. D. Peterson ◽  
David K. Weaver ◽  
Xinzhi Ni
Keyword(s):  
Rhopalosiphum Padi ◽  
Diuraphis Noxia ◽  
Wheat Lines

Responses of the Russian wheat aphid (Diuraphis noxia) and bird cherry oat aphid (Rhopalosiphum padi) to insecticide seed treatments in wheat

2018 ◽  
Vol 69 (10) ◽  
pp. 966 ◽  
Author(s):  
Lisa S. Kirkland ◽  
Elia I. Pirtle ◽  
Paul A. Umina
Keyword(s):  
Growth Stage ◽  
Grain Quality ◽  
Rhopalosiphum Padi ◽  
Plant Viruses ◽  
Russian Wheat Aphid ◽  
Aphid Species ◽  
Diuraphis Noxia ◽  
Cereal Crops ◽  
Cereal Aphids ◽  
Control Option

Aphids are economically important pests of cereal crops globally. They feed on the sap of plants, which can directly reduce yield and grain quality. Many species are also proficient at transmitting important plant viruses. Two of the world’s most damaging cereal aphids are the Russian wheat aphid (Diuraphis noxia) and bird cherry oat aphid (Rhopalosiphum padi). These species are present in all major grain-growing regions worldwide, with D. noxia recently invading Australia. In many countries, including Australia, chemicals are an important control option. Insecticide seed-dressings, in particular, are widely used to combat early-season infestations of aphids in establishing cereal crops. In this study we examined the length of protection provided by several insecticide seed-dressings against D. noxia in wheat, and compared this with R. padi. All seed-dressings examined were efficacious for up to 5 weeks after wheat emergence; however, notable differences were evident between aphid species. In most instances, R. padi was able to persist and reproduce on wheat at an earlier growth stage than D. noxia. These findings suggest that R. padi is more tolerant to certain insecticides and may therefore re-infest insecticide-treated wheat fields earlier than D. noxia.

scholarly journals Genome-wide association analysis of Russian wheat aphid (Diuraphis noxia) resistance in Dn4 derived wheat lines evaluated in South Africa

PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0244455
Author(s):  
Lavinia Kisten ◽  
Vicki L. Tolmay ◽  
Isack Mathew ◽  
Scott L. Sydenham ◽  
Eduard Venter
Keyword(s):  
South Africa ◽  
South African ◽  
The United States ◽  
Russian Wheat Aphid ◽  
Diuraphis Noxia ◽  
Genome Wide Association ◽  
Complex Genetics ◽  
Genome Wide ◽  
A Genome ◽  
Wheat Lines

Russian wheat aphid (RWA; Diuraphis noxia Kurdjumov) resistance on the 1D chromosome of wheat has been the subject of intensive research. Conversely, the deployment of the Dn4 derived RWA resistant varieties diminished in recent years due to the overcoming of the resistance it imparts in the United States of America. However, this resistance has not been deployed in South Africa despite reports that Dn4 containing genotypes exhibited varying levels of resistance against the South African RWA biotypes. It is possible that there may be certain genetic differences within breeding lines or cultivars that influence the expression of resistance. The aim of this study was to identify single nucleotide polymorphism (SNP) markers associated with resistance to South African RWA biotypes. A panel of thirty-two wheat lines were phenotyped for RWA resistance using four South African RWA biotypes and a total of 181 samples were genotyped using the Illumina 9K SNP wheat chip. A genome wide association study using 7598 polymorphic SNPs showed that the population was clustered into two distinct subpopulations. Twenty-seven marker trait associations (MTA) were identified with an average linkage disequilibrium of 0.38 at 10 Mbp. Four of these markers were highly significant and three correlated with previously reported quantitative trait loci linked to RWA resistance in wheat. Twenty putative genes were annotated using the IWGSC RefSeq, three of which are linked to plant defence responses. This study identified novel chromosomal regions that contribute to RWA resistance and contributes to unravelling the complex genetics that control RWA resistance in wheat.

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