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6 results for “Diuraphis noxia”
Data from: A multi-genome analysis approach enables tracking of the invasion of a single Russian wheat aphid (Diuraphis noxia) clone throughout the New World
This study investigated the population genetics, demographic history and pathway of invasion of the Russian wheat aphid (RWA) from its native range in Central Asia, the Middle East and Europe to South Africa and the Americas. We screened microsatellite markers, mitochondrial DNA, and endosymbiont genes in 504 RWA clones from nineteen populations worldwide. Following pathway analyses of microsatellite and endosymbiont data, we postulate that Turkey and Syria were the most likely sources of invasion to Kenya and South Africa, respectively. Furthermore, we found that one clone transferred between South Africa and the Americas was most likely responsible for the New World invasion. Finally, endosymbiont DNA was found to be a high resolution population genetic marker, extremely useful for studies of invasion over a relatively short evolutionary history timeframe. This study has provided valuable insights into the factors that may have facilitated the recent global invasion by this damaging pest.
Data from: A multi-genome analysis approach enables tracking of the invasion of a single Russian wheat aphid (Diuraphis noxia) clone throughout the New World
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Data from: Russian wheat aphids (Diuraphis noxia) in China: native range expansion or recent introduction?
In this study, we explore the population genetics of the Russian wheat aphid (RWA) (Diuraphis noxia), one of the world's most invasive agricultural pests, in north-western China. We have analysed the data of 10 microsatellite loci and mitochondrial sequences from 27 populations sampled over 2 years in China. The results confirm that the RWAs are holocyclic in China with high genetic diversity indicating widespread sexual reproduction. Distinct differences in microsatellite genetic diversity and distribution revealed clear geographic isolation between RWA populations in northern and southern Xinjiang, China, with gene flow interrupted across extensive desert regions. Despite frequent grain transportation from north to south in this region, little evidence for RWA translocation as a result of human agricultural activities was found. Consequently, frequent gene flow among northern populations most likely resulted from natural dispersal, potentially facilitated by wind currents. We also found evidence for the long-term existence and expansion of RWAs in China, despite local opinion that it is an exotic species only present in China since 1975. Our estimated date of RWA expansion throughout China coincides with the debut of wheat domestication and cultivation practices in western Asia in the Holocene. We conclude that western China represents the limit of the far eastern native range of this species. This study is the most comprehensive molecular genetic investigation of the RWA in its native range undertaken to date and provides valuable insights into the history of the association of this aphid with domesticated cereals and wild grasses.
Data from: Russian wheat aphids (Diuraphis noxia) in China: native range expansion or recent introduction?
Open the record for dataset details and reuse information.
Whole-body transcriptome mining for candidate effectors from Diuraphis noxia
GEO Series GSE200382. Diuraphis noxia. 1 samples. Type: Expression profiling by high throughput sequencing.
RNA-seq analysis of two genealogically linked South African Diuraphis noxia biotypes
GEO Series GSE143502. Diuraphis noxia. 6 samples. Type: Expression profiling by high throughput sequencing.
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