Host Associations of Diuraphis noxia (Homoptera: Aphididae) Biotypes in South Africa

2014 ◽  
Vol 107 (4) ◽  
pp. 6-6
Keyword(s):  
South Africa ◽  
Diuraphis Noxia ◽  
Host Associations

scholarly journals A new species of Eurytoma (Hymenoptera: Eurytomidae) attacking Quadrastichus spp. (Hymenoptera: Eulophidae) galling Erythrina spp. (Fabaceae), with a summary of African Eurytoma biology and species checklist

Zootaxa ◽  
2008 ◽  
Vol 1751 (1) ◽  
pp. 1 ◽  
Author(s):  
M. GATES ◽  
G. DELVARE
Keyword(s):  
South Africa ◽  
New Species ◽  
New Combinations ◽  
African Species ◽  
Species Checklist ◽  
A New Species ◽  
Host Associations

Eurytoma erythrinae Gates and Delvare, new species, is described and illustrated. This species was reared from fieldcollected galls on Erythrina spp. (Fabaceae) induced by Quadrastichus spp. (Hymenoptera: Eulophidae), in Tanzania, Ghana, and South Africa. It is compared with very similar African species, Eurytoma radicicola Risbec. Afrotropical species classified in Eurytoma are reviewed and twenty-seven new combinations are proposed: Aximopsis acaciacola (Hedqvist) comb. n., A. caryedocida (Rasplus) comb. n., A. lamtoensis (Rasplus) comb. n., A. mateui (Hedqvist) comb. n., A. mimosarum (Rasplus) comb. n., A. obocki (Risbec) comb. n., A. oryzivora (Delvare) comb. n., A. saharensis (Hedqvist) comb. n., A. senegalensis (Risbec) comb. n., A. tropicana (Risbec) comb. n., Bruchophagus conapionis (Rasplus) comb. n., Fronsoma ellenbergeri (Risbec) comb. n., Gibsonoma amborasahae (Risbec) comb. n., G. aphloiae (Risbec) comb. n., G. bararakae (Risbec) comb. n., G. eugeniae (Risbec) comb. n., G. mandrakae (Risbec) comb. n., G. pauliani (Risbec) comb. n., G. plectroniae (Risbec) comb. n., G. tavolae (Risbec) comb. n., Philolema arachnovora (Hesse) comb. n., P. arnoldi (Waterston) comb. n., P. bambeyi (Risbec) comb. n., P. braconidis (Ferrière) comb. n., and P. syleptae (Ferri_re) comb. n., Phylloxeroxenus cressoni (Howard) comb. n., and Sycophila plectroniae (Risbec) comb. n. Lectotypes are designated for ten species: Eurytoma perineti Risbec, E. radicicola Risbec, E. toddaliae Risbec, Gibsonoma amborasahae (Risbec), G. aphloiae (Risbec), G. eugeniae (Risbec), G. mandrakae (Risbec), G. pauliani (Risbec), G. tavolae (Risbec), and P. bambeyi (Risbec). We also provide a checklist of Afrotropical species that are or were classified in Eurytoma and tabulate the known host/associations of these species with references.

Molecular phylogeny and novel host associations of avian chewing lice (Insecta: Phthiraptera) from South Africa

2018 ◽  
Vol 44 (2) ◽  
pp. 289-304 ◽  
Author(s):  
Oona M. Takano ◽  
Gary Voelker ◽  
Daniel R. Gustafsson ◽  
Jessica E. Light
Keyword(s):  
South Africa ◽  
Molecular Phylogeny ◽  
Chewing Lice ◽  
Novel Host ◽  
Host Associations

Diuraphis noxia. [Distribution map].

1991 ◽  
Author(s):  
Keyword(s):  
South Africa ◽  
United Kingdom ◽  
New Mexico ◽  
North America ◽  
South America ◽  
Central America ◽  
Diuraphis Noxia ◽  
Distribution Map ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Diuraphis noxia (Mordvilko) Hemiptera: Aphididae Russian wheat aphid, barley aphid. Attacks wheat, barley, triticale, oats, rye and sorghum. Information is given on the geographical distribution in EUROPE, France, Italy, Portugal, Spain, Turkey, United Kingdom, USSR, Kazakh SSR, Ukrainian SSR, AFRICA, Algeria, Egypt, Ethiopia, Libya, Morocco, South Africa, Zimbabwe, ASIA, Afghanistan, Iran, Iraq, Israel, Jordan, Pakistan, Syria, Yemen, Republic NORTH AMERICA, Canada, Alberta, British Columbia, Saskatchewan, USA, Colorado, Kansas, Montana, Nebraska, New Mexico, Oklahoma, Texas, Washington, Wyoming, CENTRAL AMERICA, Mexico, SOUTH AMERICA, Argentina, Chile.

scholarly journals Genome-wide association analysis of Russian wheat aphid (Diuraphis noxia) resistance in Dn4 derived wheat lines evaluated in South Africa

PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0244455
Author(s):  
Lavinia Kisten ◽  
Vicki L. Tolmay ◽  
Isack Mathew ◽  
Scott L. Sydenham ◽  
Eduard Venter
Keyword(s):  
South Africa ◽  
South African ◽  
The United States ◽  
Russian Wheat Aphid ◽  
Diuraphis Noxia ◽  
Genome Wide Association ◽  
Complex Genetics ◽  
Genome Wide ◽  
A Genome ◽  
Wheat Lines

Russian wheat aphid (RWA; Diuraphis noxia Kurdjumov) resistance on the 1D chromosome of wheat has been the subject of intensive research. Conversely, the deployment of the Dn4 derived RWA resistant varieties diminished in recent years due to the overcoming of the resistance it imparts in the United States of America. However, this resistance has not been deployed in South Africa despite reports that Dn4 containing genotypes exhibited varying levels of resistance against the South African RWA biotypes. It is possible that there may be certain genetic differences within breeding lines or cultivars that influence the expression of resistance. The aim of this study was to identify single nucleotide polymorphism (SNP) markers associated with resistance to South African RWA biotypes. A panel of thirty-two wheat lines were phenotyped for RWA resistance using four South African RWA biotypes and a total of 181 samples were genotyped using the Illumina 9K SNP wheat chip. A genome wide association study using 7598 polymorphic SNPs showed that the population was clustered into two distinct subpopulations. Twenty-seven marker trait associations (MTA) were identified with an average linkage disequilibrium of 0.38 at 10 Mbp. Four of these markers were highly significant and three correlated with previously reported quantitative trait loci linked to RWA resistance in wheat. Twenty putative genes were annotated using the IWGSC RefSeq, three of which are linked to plant defence responses. This study identified novel chromosomal regions that contribute to RWA resistance and contributes to unravelling the complex genetics that control RWA resistance in wheat.

Limited Endosymbiont Variation in Diuraphis noxia (Hemiptera: Aphididae) Biotypes From the United States and South Africa

2010 ◽  
Vol 103 (3) ◽  
pp. 887-897 ◽  
Author(s):  
Z. H. Swanevelder ◽  
A.K.J. Surridge ◽  
E. Venter ◽  
A.-M. Botha
Keyword(s):  
United States ◽  
South Africa ◽  
The United States ◽  
Diuraphis Noxia
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