Assessing Potato Psyllid Haplotypes in Potato Crops in the Pacific Northwestern United States Public Deposited

http://ir.library.oregonstate.edu/concern/articles/5h73px93c

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article is copyrighted by the Potato Association of America and published by Springer. It can be found at:  http://link.springer.com/journal/12230.

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  • The potato psyllid, Bactericera cockerelli (Šulc), is a vector of the bacterium ‘Candidatus Liberibacter solanacearum’ (Lso) that has been linked to the economically devastating zebra chip disease of potato. To date, four haplotypes of the potato psyllid have been identified and include Central, Western, Northwestern, and Southwestern haplotypes. Zebra chip was reported in potato crops in the Pacific Northwestern United States for the first time in 2011, and the Lso-infected psyllids collected from zebra chip-affected fields were identified as the Western haplotype. Additional studies have reported a mix of the Western and Northwestern psyllid haplotypes in the Pacific Northwest. The present study further examined psyllid population dynamics over the duration of the 2012 potato season in the Pacific Northwest by haplotype analysis of 864 potato psyllids collected from potato fields in Washington, Oregon, and Idaho. In the Yakima Valley of Washington and the lower Columbia Basin of Washington and Oregon, the Northwestern haplotype was predominant (78%), and was detected earlier in the season than the Western haplotype. Interestingly, in south-central Idaho, all four psyllid haplotypes were identified, but the predominant haplotype was the Western haplotype (77%). Here, Northwestern psyllids were detected early in the season from June to mid-August, whereas Central psyllidswere detected in late July and thereafter. These results suggest that haplotype composition of psyllid populations in potato fields throughout the 2012 growing season in south-central Idaho differed greatly from those in Washington and Oregon. Additionally, all psyllids were analyzed for the presence of Lso, and no Lso-positive psyllids were found in Washington and Oregon, whereas Lso-positive psyllids were found in south-central Idaho. These Lso-positive psyllids consisted of the Western, Northwestern, and Central haplotypes.
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  • Swisher, K. D., Sengoda, V. G., Dixon, J., Munyaneza, J. E., Murphy, A. F., Rondon, S. I., ... & Crosslin, J. M. (2014). Assessing potato psyllid haplotypes in potato crops in the Pacific Northwestern United States. American Journal of Potato Research, 91(5), 485-491. doi:10.1007/s12230-014-9378-8
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  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-11-20T17:02:08Z No. of bitstreams: 1 MurphyAlexzandraCropSoilScienceAssessingPotatoPsyllid.pdf: 476474 bytes, checksum: d420bd1da40f8f6f01395c60962e9d27 (MD5)
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