Pasquet Rémy, Peltier A., Hufford M. B., Oudin E., Saulnier J., Paul L., Knudsen J. T., Herren H. R., Gepts P. (2008). Long-distance pollen flow assessment through evaluation of pollinator foraging range suggests transgene escape distances. Proceedings of the National Academy of Sciences of the United States of America, 105 (36), p. 13456-13461. ISSN 0027-8424.
Titre du document
Long-distance pollen flow assessment through evaluation of pollinator foraging range suggests transgene escape distances
Année de publication
2008
Auteurs
Pasquet Rémy, Peltier A., Hufford M. B., Oudin E., Saulnier J., Paul L., Knudsen J. T., Herren H. R., Gepts P.
Source
Proceedings of the National Academy of Sciences of the United States of America, 2008,
105 (36), p. 13456-13461 ISSN 0027-8424
Foraging range, an important component of bee ecology, is of considerable interest for insect-pollinated plants because it determines the potential for outcrossing among individuals. However, long-distance pollen flow is difficuit to assess, especially when the plant also relies on self-pollination. Pollen movement can be estimated indirectly through population genetic data, but complementary data on pollinator flight distances is necessary to validate such estimates. By using radio-tracking of cowpea pollinator return flights, we found that carpenter bees visiting cowpea flowers can forage up to 6 km from their nest. Foraging distances were found to be shorter than the maximum flight range, especially under adverse weather conditions or poor reward levels. From complete flight records in which bees visited wild and domesticated populations, we conclude that bees can mediate gene flow and, in some instances, allow transgene (genetically engineered material) escape over several kilometers. However, most between-flower flights occur within plant patches, while very few occur between plant patches.
Plan de classement
Sciences du monde végétal [076]
;
Sciences du monde animal [080]
Localisation
Fonds IRD [F B010042781]
Identifiant IRD
fdi:010042781
