Genetic control of different types of the aphid resistance in cereal crops

Radchenko, E. E.; Berim, M. N.; Zubov, A. A.

doi:10.1134/s0013873807030025

Cited by 2 publications

(2 citation statements)

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“…In our experiments, the coincidence of segregation for antixenosis and antibiosis was found in cases of monogenic ( Sgr4 gene), digenic ( Sgr1 , Sgr2, Sgr7 , and Sgr8 ) control of sorghum resistance to the greenbug, and the complementary interacting genes ( Sgr9 , Sgr10 ). In “Delphi 400” × “Siete Cerros 66” F 3 wheat hybrids, the paired manifestation of antixenosis and antibiosis to bird cherry-oat aphid was also observed [ 29 ].…”

Section: Types Of Plant Resistance To Aphidsmentioning

confidence: 99%

“…tauschii WX1027) carries the bird cherry-oat aphid antibiosis QTL on the long arm of the 4B chromosome, as well as two tolerance QTLs on chromosomes 5AL and 5BL [ 176 ]. It was shown that the spring bread wheat variety “Delfi 400” (Kazakhstan) has two dominant complementary genes that control R. padi antixenosis and antibiosis [ 29 ].…”

Section: Genes Of Aphid Resistance In Cereal Cropsmentioning

confidence: 99%

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Genetic Resources of Cereal Crops for Aphid Resistance

Radchenko

Абдуллаев

Anisimova

2022

Plants

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The genetic resources of cereal crops in terms of resistance to aphids are reviewed. Phytosanitary destabilization led to a significant increase in the harmfulness of this group of insects. The breeding of resistant plant genotypes is a radical, the cheapest, and environmentally safe way of pest control. The genetic homogeneity of crops hastens the adaptive microevolution of harmful organisms. Both major and minor aphid resistance genes of cereal plants interact with insects differentially. Therefore, rational breeding envisages the expansion of the genetic diversity of cultivated varieties. The possibilities of replenishing the stock of effective resistance genes by studying the collection of cultivated cereals, introgression, and creating mutant forms are considered. The interaction of insects with plants is subject to the gene-for-gene relationship. Plant resistance genes are characterized by close linkage and multiple allelism. The realizing plant genotype depends on the phytophage biotype. Information about the mechanisms of constitutional and induced plant resistance is discussed. Resistance genes differ in terms of stability of expression. The duration of the period when varieties remain resistant is not related either to its phenotypic manifestation or to the number of resistance genes. One explanation for the phenomenon of durable resistance is the association of the virulence mutation with pest viability.

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Section: Types Of Plant Resistance To Aphidsmentioning

confidence: 99%

Section: Genes Of Aphid Resistance In Cereal Cropsmentioning

confidence: 99%