Clonal reproduction and population genetic structure of grape phylloxera, Daktulosphaira vitifoliae, in Australia

Heredity
A M CorrieAry Hoffmann

Abstract

The grape phylloxera, Daktulosphaira vitifoliae, is a viticultural pest that in the past has devastated vineyards worldwide, yet little is known about this insect's biology. The genetic structure of Australian populations of grape phylloxera and its mode of reproduction were studied following the development of four polymorphic microsatellite loci. Insects were collected from 28 vineyards, with a total of 361 insects included in the study. The majority of vineyards were infested by functionally parthenogenetic lineages of grape phylloxera that inhabit the root system and there was little support for the traditionally described holocyclic life cycle for this species. Clonal diversity was limited in all of the vineyard regions, with the exception of the Rutherglen region. A multiple founder scenario or occasional sex may contribute to diversity within the Rutherglen region. Leaf galling populations comprised classes distinct from the common genotypic classes identified on the roots, suggesting limited exchange between these groups. Implications for the management of D. vitifoliae are discussed.

References

Sep 13, 2000·Genome Génome / Conseil National De Recherches Canada·A ForneckR Blaich
Dec 9, 2000·Annual Review of Entomology·J GranettA D Omer
Oct 1, 1997·Evolution; International Journal of Organic Evolution·Robert C Vrijenhoek, Edward Pfeiler

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Citations

Jul 24, 2008·Proceedings. Biological Sciences·Ary A HoffmannAndrew R Weeks
May 31, 2012·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Gregory K Davis
May 21, 2010·Bulletin of Entomological Research·K S HerbertA A Hoffmann
May 28, 2019·Integrative and Comparative Biology·Amanda K Gibson
Feb 6, 2014·Molecular Biology and Evolution·Andre E MouraAlan Rus Hoelzel

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