Journal article

Genome-wide analysis of diamondback moth, Plutella xylostella L., from Brassica crops and wild host plants reveals no genetic structure in Australia

Kym D Perry, Michael A Keller, Simon W Baxter

Scientific Reports | Nature Publishing Group | Published : 2020

Abstract

Molecular studies of population structure can reveal insight into the movement patterns of mobile insect pests in agricultural landscapes. The diamondback moth, Plutella xylostella L., a destructive pest of Brassica vegetable and oilseed crops worldwide, seasonally colonizes winter canola crops in southern Australia from alternative host plant sources. To investigate movement, we collected 59 P. xylostella populations from canola crops, Brassica vegetable and forage crops and brassicaceous wild host plants throughout southern Australia in 2014 and 2015 and genotyped 833 individuals using RAD-seq for genome-wide analysis. Despite a geographic sampling scale > 3,000 km and a statistically powe..

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University of Melbourne Researchers

Grants

Awarded by University of Adelaide


Awarded by Grains Research and Development Corporation (GRDC)


Awarded by Australian Research Council


Funding Acknowledgements

The authors thank colleagues who collected Plutella samples: Adam Hancock, Adam Pearce, Adam Quade, Alan Lord, Andrew McMahen, Andy Bates, Andy Ryland, Brenton Spriggs, Chris Davey, Chris Teague, Craig James, Dustin Berryman, Grant Hudson, Guy Westmore, James McKee, Jessica Smith, Joanne Holloway, Josh Andrews, Josh Hollitt, Karina Bennett, Laura Archer, Levon Cookson, Lisa Ohlson, Louise Flohr, Melina Miles, Michael Collins, Monica Field, Nigel Myers, Peter Cole, Peter Ellison, Peter Gregg, Peter Mangano, Richard Saunders, Sarina Macfadyen, Stewart Learmonth. We thank Greg Baker for helpful insights, and Lynn Dieckow and Birte Albrecht for assistance with genotyping and library preparation. K.D.P. was supported by the University of Adelaide (UA00146) and the Grains Research and Development Corporation (GRDC) (DAS00094), S.W.B. was supported by the Australian Research Council (DP120100047, FT140101303).