Identification of Russian Wheat Aphid (Homoptera: Aphididae) Resistance in Wheat

Smith, Michael C.; Schotzko, D. J.; Zemetra, Robert S.; Souza, E.; Schroeder-Teeter, Stephanie

doi:10.1093/jee/84.1.328

Cited by 63 publications

(39 citation statements)

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“…Another resistant wheat germplasm, P1294994, a hard red winter, was also identified in 1987 (Du Toit, 1988) . Since then, resistance to RWA has been identified in a number of wheat lines and related species (Frank et al ., 1989 ;Nkongolo et al ., 1989Nkongolo et al ., ,1990Quick, 1989 ;Quick et al, 1991 ;Smith et al, 1991 ;Souza et al, 1991 ;Webster et al, 1988 ;Zemetra et al ., 1990) .…”

Section: Introductionmentioning

confidence: 99%

Inheritance and allelism of resistances to the Russian wheat aphid in seven wheat lines

Dong

Quick

1995

Euphytica

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Studies were conducted to determine the inheritance and allelic relationships of genes controlling resistance to the Russian wheat aphid (RWA), Diuraphis noxia (Mordvilko), in seven wheat germplasm lines previously identified as resistant to RWA. The seven resistant lines were crossed to a susceptible wheat cultivar Carson, and three resistant wheats, CORWAI, P1294994 and PI243781, lines carrying the resistance genes Dn4, Dn5 and Dn6, respectively. Seedlings of the parents, F1 and F2 were screened for RWA resistance in the greenhouse by artificial infestation . Seedling reactions were evaluated 21 to 28 days after the infestation using a 1 to 9 scale . All the F1 hybrids had equal or near equal levels of resistance to the resistant parent indicating dominant gene control . Only two distinctive classes were present and no intermediate types were observed in the F2 segregation suggesting major gene actions . The resistance in P1225262 was controlled by two dominant genes . Resistance in all other lines was controlled by a single dominant gene . KS92WGRC24 appeared to have the same resistance gene as P1243781 and STARS-9302W-sib had a common allele with P1294994 . The other lines had genes different from the three known genes.

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Section: Introductionmentioning

confidence: 99%

Inheritance and allelism of resistances to the Russian wheat aphid in seven wheat lines

Dong

Quick

1995

Euphytica

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“…Each plant was infested at the 2 leaf stage with five adult aphids as described by Smith et al (1991). Because of limited greenhouse space, the first screening (Trial 1) was conducted in two parts.…”

Section: Methodsmentioning

confidence: 99%

“…Du and du Toit & van Niekerk (1987) identified RWA resistance in T. aestivum lines from the Soviet Union (PI262660) and Iran (PI137739 and PI294994). Additional wheat accessions were identified with D. noxia resistance (Harvey & Martin, 1990;Nkongolo et al, 1989;Zemetra et al, 1990;Quick et al, 1991;Smith et al, 1991;. Genetic analysis ofPI137739 and PI262620 demonstrated that resistance in each line was conferred by the single dominant genes Dnl and Dn2, respectively (du Toit, 1989).…”

Section: Introductionmentioning

confidence: 99%

Monosomic analysis of Russian wheat aphid (Diuraphis noxia) resistance in Triticum aestivum line PI137739

et al. 1993

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The Russian wheat aphid, Diuraphis noxia (Mordvilko) (Homoptera: Aphididae), has become an important pest of wheat (Triticum aestivum L.) in the United States. The aphid causes a phytotoxemic reaction in wheat evidenced by local and systemic chlorosis and rolling of infested leaves. Developing resistance in wheat cultivars to D. noxia is an essential factor in controlling the damage caused by this pest. Several sources of genetic resistance to D. noxia have been identified in wheat germplasm. Monosomic analysis of the monogenic resistant T. aestivum accession PI 137739 has shown that the gene (Dnl) for resistance is carried on chromosome 7D. It appears that chromosome 7B may carry a second resistance gene for D. noxia that might be a source of minor or complementary gene action for resistance.

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“…Since then most reports Wheat Improvement, Management and Utilizationfrom major wheat and barley growing areas of Narok, Nakuru, Uasin Gishu, Trans Nzoia and Mt Kenya region indicate that D. noxia has become a serious pest causing estimated crop losses of 25-80% depending on the stage of infestation. The pest is now a major constraint to wheat production in eastern Africa region [54]. The appearance of these aphids resulted in a dramatic increase in use of insecticides in cultivated wheat crops.…”

Section: Cereal Aphids Occurring On Rainfed Wheat In Kenyamentioning

confidence: 99%

“…The Russian wheat aphid causes damage to host plants through direct feeding and by injecting toxins during feeding which cause leaf rolling and unfolding thus making it diicult to control by application of contact insecticides [21,54,56]. Visible damage to the susceptible host plants is manifested as chlorotic lesions, white streaking, purple discoloration and tightly curled leaves.…”

Section: Cereal Aphids Occurring On Rainfed Wheat In Kenyamentioning

confidence: 99%

The Occurrence of Cereal Aphids in Rainfed Wheat in Kenya: The Problem and Possible Integrated Pest Management Strategies

Macharia¹,

Nyakwara²,

Njuguna³

et al. 2017

Wheat Improvement, Management and Utilization

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Cereal aphids cause direct damage to rainfed wheat through sucking of plants sap and cause losses of up to 90%, particularly in dry years in Kenya. The Russian wheat aphid (RWA) is the most destructive and may account for up to 50% yield loss or more depending on the severity and length of infestation. Current control strategies mainly rely on the use of insecticides to control cereal aphids' infestations. Chemicals improve yields in the short term, but adversely afect the environment, hence the need for development of efective IPM strategies. Early planted crops escape heavy aphid atacks and give good yields. A combination of seed rate of 100 kg and 100 kg N/ha provided the best cultural management of RWA. Ladybird beetles Adonia variegata, lacewings (Chrysoppa spp.) and parasitic wasp Aphidius sp. were the most important natural enemies. Control of cereal aphids can be achieved with systemic insecticides applied as seed dressings or foliar applied insecticides. Four lines of wheat were found to show RWA resistance and crosses with Kenyan wheat made and populations are being evaluated for resistance to cereal aphids.

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Identification of Russian Wheat Aphid (Homoptera: Aphididae) Resistance in Wheat

Cited by 63 publications

References 0 publications

Inheritance and allelism of resistances to the Russian wheat aphid in seven wheat lines

Inheritance and allelism of resistances to the Russian wheat aphid in seven wheat lines

Monosomic analysis of Russian wheat aphid (Diuraphis noxia) resistance in Triticum aestivum line PI137739

The Occurrence of Cereal Aphids in Rainfed Wheat in Kenya: The Problem and Possible Integrated Pest Management Strategies

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