Claim · model-written summary
The authors infer that phenotypic variation contradicts a single identical RWA-2 clone.
- Taxon
- wheat
Triticum aestivume1 - Interactor
- RWA-2e0pest
- Outcome
- Phenotypic variatione0
Verbatim
e0“Phenotypic variation found within RWA-2 argues against the hypothesis that RWA-2 populations consist of a single, genetically identical clone”
e1“The Russian wheat aphid, Diuraphis noxia (Kurdjumov)”
Title
Payton, Tracey Lee SHAREOK (University of Oklahoma) 2014
Other claims from this paper (10)
- Observation Russian wheat aphids damaged wheat carrying the Dn4 resistance gene in southeastern Colorado.
- Observation RWA-2 clones caused variable chlorosis, height and shoot dry weight responses in Dn4 wheat.
- Observation Three RAPD band polymorphisms distinguished RWA-5 and RWA-2 clone 7.
- Observation No COI sequence variation was found within or between aphid biotypes.
- Observation Seven microsatellite markers found no clonal variation in aphid biotypes.
- Observation RWA-1 and RWA-2 had distinct cuticular hydrocarbon mixtures.
- Method / resource Canonical variables separated all five aphid biotypes.
- Observation Genotypic markers indicated homogeneous aphid biotypes and a single introduction into the United States.
- Observation Phenotypic markers made RWA-1 and RWA-2 the most distinctive of five biotypes.
- Mechanism The authors suggest founder effect and bottlenecks as possible explanations for absent genotypic variation.