Molecular characterisation of phylloxera present in Argentinean vineyards

Agüero, Cecilia B.; Alonso, Rodrigo; Buscema, Fernando; Martínez, Liliana; Arancibia, Celeste; Lund, Karl True; Riaz, Summaira; Walker, Michael

doi:10.17660/actahortic.2017.1157.38

Cited by 2 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hierarchical clustering showed two major Argentinean phylloxera fingerprint profiles. These results are consistent with our preliminary study on Argentinean phylloxera carried out with a smaller set of samples (Agüero et al ). The fact that the Large Cluster comprises more genotypes compared to that of the Small Cluster might derive from the association between Large Cluster and warm region, a vast region that includes the largest number of vineyards.…”

Section: Discussionsupporting

confidence: 93%

See 1 more Smart Citation

Grape phylloxera (Daktulosphaira vitifoliaeFitch) in Argentina: ecological associations to diversity, population structure and reproductive mode

Arancibia

Riaz

Agüero

et al. 2018

Australian Journal of Grape and Wine Research

Self Cite

View full text Add to dashboard Cite

Background and Aims: The North American insect pest grape phylloxera was introduced into Europe in the 19th century and devastated the Vitis vinifera-based vineyards. It has since become widely distributed among the world's vineyards. Although it is present in Argentina, it has not caused any major damage. This work aims: to characterise the genetic diversity of Argentinean phylloxera; to determine population structure and reproductive mode; to compare Argentinean genotypes with samples from seven other countries; and to examine relationships between the infestation level and genetic profile with ecological factors. Methods and Results: One hundred and twenty-nine samples of phylloxera from Argentinean provinces were analysed with 21 microsatellite markers. Seventeen multilocus genotypes were identified. Unweighted pair group method with arithmetic mean analysis identified two major groups. Principal coordinates analysis grouped together Peruvian, California biotypes A and B and Argentinean phylloxera, showing dissimilarity with other foreign samples. Associations between infestation level, berry colour and climatic region, and associations between genetic clusters and climatic region were established. Conclusions: Endemic Argentinean phylloxera genotypes showed genetic diversity and were different from other samples assessed. Parthenogenesis is proposed as the main reproductive mode, but rare sexual reproduction is not ruled out. No particular structure was observed in the phylloxera populations. Significance of the Study: This is the first detailed report on the genetic characterisation of phylloxera populations in Argentina using microsatellites markers. It provides the foundation for further studies.

show abstract

Section: Discussionsupporting

confidence: 93%

“…A large number of microsatellite markers (Riaz et al ) are currently available to analyse Argentinean grape phylloxera. Agüero et al () identified two fingerprint profiles from the analysis of 21 samples, one of them grouping close to a reference sample of phylloxera from AXR#1 rootstock.…”

Section: Introductionmentioning

confidence: 93%