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Genetic markers indicate a new species complex of emerging pest mites in Australian grains

Arthur, Aston L., Miller, Adam D. and Weeks, Andrew R. 2011, Genetic markers indicate a new species complex of emerging pest mites in Australian grains, Annals of the Entomological Society of America, vol. 104, no. 3, pp. 402-415, doi: 10.1603/AN10065.

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Title Genetic markers indicate a new species complex of emerging pest mites in Australian grains
Author(s) Arthur, Aston L.
Miller, Adam D.ORCID iD for Miller, Adam D. orcid.org/0000-0002-1632-7206
Weeks, Andrew R.
Journal name Annals of the Entomological Society of America
Volume number 104
Issue number 3
Start page 402
End page 415
Total pages 14
Publisher Oxford University Press
Place of publication New York, N.Y.
Publication date 2011-05-01
ISSN 0013-8746
1938-2901
Keyword(s) Balaustium medicagoense
Bryobia
mite
pest
species status
Summary Balaustium medicagoense Meyer & Ryke (Acari: Erythraeidae) and Bryobia spp. Koch (Acari: Tetranychidae) are significant emerging pests in Australian grains and pastures. Despite this, there is limited information known on their basic biology, such as species status and reproductive modes, making it difficult to develop effective and sustainable control strategies. The species/strain status of Balaustium and Bryobia mites from southern Australia was examined using a combination of mitochondrial and nuclear DNA sequence data. In addition, the amplified fragment length polymorphism (AFLP) method was used to examine the reproductive mode and genetic diversity of Ba. medicagoense from 16 populations within southern Australia. Results indicate that there is only one species of Balaustium (Ba. medicagoense) and as many as seven species of Bryobia mites currently present in grain crops, pastures and roadsides within southern Australia. The Bryobia species complex consists of four recently described lineages (Bryobia sp. I, Bryobia sp. IV, Bryobia sp. VII, and Bryobia praetiosa Koch) and three additional genetic lineages (Bryobia sp. VIII, Bryobia sp. IX, and Bryobia sp. X) that have not been described previously. Bryobia sp. VIII, B. sp. IX, and B. sp. I seem to be the most abundant species present in Australian broadacre agriculture (i.e., land suitable for farms practicing large-scale crop [agriculture] operations). The AFLP data revealed that Ba. medicagoense reproduces asexually and that genetic diversity was low with only 10 genotypes found. These findings indicate a new complex of pest mites are present within Australian grain crops and pastures and this has implications for their control.
Language eng
DOI 10.1603/AN10065
Field of Research 060411 Population, Ecological and Evolutionary Genetics
060808 Invertebrate Biology
070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
0608 Zoology
Socio Economic Objective 970107 Expanding Knowledge in the Agricultural and Veterinary Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2011, Entomological Society of America
Persistent URL http://hdl.handle.net/10536/DRO/DU:30088775

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