Volume 30, Number 1, 1999
|Page(s)||31 - 36|
Occurrence of two genotypes of Varroa jacobsoni Oud. in North AmericaLilia I. de Guzman, Thomas E. Rinderer and J. Anthony Stelzer
USDA/ARS, Honey-Bee Breeding, Genetics and Physiology Laboratory, 1157 Ben Hur Road, Baton Rouge, LA 70820, USA
Abstract - Both the Russian and Japanese genotypes of Varroa jacobsoni were present in the United States and Canada. Only the Russian genotype was found in Mexico. Our results suggest that North America, and especially the United States has had more than one introduction of Varroa jacobsoni. Differences in virulence among strains of V. jacobsoni may be the basis for reports of regional variation in honey bee resistance to Varroa. Thus, further studies on the interaction between Varroa and honey bee genotypes are needed to fully resolve the issue. © Inra/DIB/AGIB/Elsevier, Paris
Key words: Varroa jacobsoni / genotype / RAPD / North America / USA / Canada / Mexico / Russia / Europe
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.