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Near-isogenic lines of Triticum aestivum with distinct modes of resistance exhibit dissimilar transcriptional regulation during Diuraphis noxia feeding.

Botha AM, van Eck L, Burger NF, Swanevelder ZH - Biol Open (2014)

Bottom Line: Although the effects of several D. noxia (Dn) resistance genes are known, none have been isolated or characterized.Tolerance is a passive resistance mechanism that acts through repair or de novo synthesis of photosystem proteins.Results further suggest that ethylene-mediated pathways are possibly involved in generating volatile compounds and cell wall fortification during the antixenosic response.

View Article: PubMed Central - PubMed

Affiliation: Department of Genetics, Stellenbosch University, Stellenbosch 7601, South Africa ambo@sun.ac.za.

No MeSH data available.


Related in: MedlinePlus

Models of the AAMPs in genotypes that express different modes of resistance according to Painter (Painter, 1951; Painter, 1958).Models are modified from Botha (Botha, 2013).
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f07: Models of the AAMPs in genotypes that express different modes of resistance according to Painter (Painter, 1951; Painter, 1958).Models are modified from Botha (Botha, 2013).

Mentions: In conclusion, the patterns of differential gene expression of the three resistance NILs bred from the susceptible Tugela wheat line (Tolmay et al., 2006) are summarized in Fig. 7, and constitute a superb opportunity to study the effects of single resistance genes on an identical genetic background. From the evidence presented here, it is clear that initial aphid recognition in a Dn gene-specific manner coupled with the time and intensity of subsequent gene activation is critical in the eventual development of a resistant phenotype, whether an active antibiosis and antixenosis, or a passive photosynthetic compensatory tolerance.


Near-isogenic lines of Triticum aestivum with distinct modes of resistance exhibit dissimilar transcriptional regulation during Diuraphis noxia feeding.

Botha AM, van Eck L, Burger NF, Swanevelder ZH - Biol Open (2014)

Models of the AAMPs in genotypes that express different modes of resistance according to Painter (Painter, 1951; Painter, 1958).Models are modified from Botha (Botha, 2013).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4232770&req=5

f07: Models of the AAMPs in genotypes that express different modes of resistance according to Painter (Painter, 1951; Painter, 1958).Models are modified from Botha (Botha, 2013).
Mentions: In conclusion, the patterns of differential gene expression of the three resistance NILs bred from the susceptible Tugela wheat line (Tolmay et al., 2006) are summarized in Fig. 7, and constitute a superb opportunity to study the effects of single resistance genes on an identical genetic background. From the evidence presented here, it is clear that initial aphid recognition in a Dn gene-specific manner coupled with the time and intensity of subsequent gene activation is critical in the eventual development of a resistant phenotype, whether an active antibiosis and antixenosis, or a passive photosynthetic compensatory tolerance.

Bottom Line: Although the effects of several D. noxia (Dn) resistance genes are known, none have been isolated or characterized.Tolerance is a passive resistance mechanism that acts through repair or de novo synthesis of photosystem proteins.Results further suggest that ethylene-mediated pathways are possibly involved in generating volatile compounds and cell wall fortification during the antixenosic response.

View Article: PubMed Central - PubMed

Affiliation: Department of Genetics, Stellenbosch University, Stellenbosch 7601, South Africa ambo@sun.ac.za.

No MeSH data available.


Related in: MedlinePlus