User menu

Accès à distance ? S'identifier sur le proxy UCLouvain

Cold-induced expression of diapause in Praon volucre: fitness cost and morpho-physiological characterization

Primary tabs

Colinet, Hervé [UCL] Muratori, Frédéric [UCL] Hance, Thierry [UCL]

Cold exposure (2 degrees C for 7 days) in constant darkness at mummy stage induces diapause expression in 9% of the Praon volucre Haliday population. Diapausing parasitoids show a significant delay in emergence time compared with nondiapausing counterparts. A diapause-mediated polyphenism is observed in mummy colour, with diapausing mummies being clearly darker than nondiapausing ones. The diapause status of dark mummies is confirmed by a significant reduction in metabolic rate. Diapausing parasitoids also display specific morphological characteristics: they are heavier (fresh and dry mass) and accumulate larger fat reserves than nondiapausing counterparts. The diapause status is associated with a fitness cost in terms of adult longevity. There is no evidence of diapause-related change in supercooling ability.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 2010
Language Anglais
Journal information "Physiological Entomology: from biochemistry to behaviour" - Vol. 35, no. 4, p. 301-307 (2010)
Peer reviewed yes
Publisher Wiley-Blackwell Publishing Ltd. ((United Kingdom) Oxford)
issn 0307-6962
Publication status Publié
Affiliation UCL - SST/ELI/ELIB - Biodiversity
Links
  1. Adedokun, Journal of Insect Physiology, 31, 229 (1984)
  2. Brodeur, Science, 244, 226 (1989a)
  3. Brodeur, Journal of Insect Physiology, 35, 969 (1989b)
  4. Carvalho, Neotropical Entomology, 34, 613 (2005)
  5. Christiansen-Weniger, Entomophaga, 42, 165 (1997)
  6. Colinet, Annals of Applied Biology, 156, 147 (2010)
  7. Colinet, Environmental Entomology, 35, 228 (2006)
  8. Colinet, Oecologia, 152, 425 (2007a)
  9. Colinet, Journal of Thermal Biology, 32, 374 (2007b)
  10. Danks H. V., Extreme Individuals in Natural Populations, 10.1093/besa/29.1.41
  11. Danks, Insect Dormancy: An Ecological Perspective. (1987)
  12. DANKS Hugh V., The range of insect dormancy responses, 10.14411/eje.2002.021
  13. Danks, Canadian Entomologist, 138, 1 (2006)
  14. Denlinger, Relationship Between Cold-hardiness and Diapause, 174 (1991)
  15. Eizaguirre, Journal of Insect Physiology, 54, 1057 (2008)
  16. Ellers, Netherlands Journal of Zoology, 46, 227 (1996)
  17. Ellers, Ecological Entomology, 27, 279 (2002)
  18. Ellers, Journal of Animal Ecology, 67, 318 (1998)
  19. Finch, Ecological Entomology, 8, 29 (1983)
  20. Garcia, Journal of Insect Physiology, 48, 349 (2002)
  21. Hagen, Ecological Entomology, 10, 19 (1985)
  22. Hahn, Journal of Insect Physiology, 53, 760 (2007)
  23. Hance, Annual Review of Entomology, 52, 107 (2007)
  24. HODKOVA Magdalena, HODEK Ivo, Photoperiod, diapause and cold-hardiness, 10.14411/eje.2004.064
  25. Kostal, Journal of Insect Physiology, 52, 113 (2006)
  26. Krespi, Bulletin of Entomological Research, 84, 45 (1994)
  27. Langer, Journal of Insect Physiology, 46, 671 (2000)
  28. Legrand, CryoLetters, 25, 161 (2004a)
  29. Legrand, Belgian Journal of Zoology, 134, 9 (2004b)
  30. Milonas, CryoLetters, 26, 395 (2005)
  31. Mitchell Carl J., Briegel Hans, Inability of Diapausing Culex pipiens (Diptera: Culicidae) to Use Blood for Producing Lipid Reserves for Overwinter Survival, 10.1093/jmedent/26.4.318
  32. Munyiri, Journal of Insect Physiology, 50, 295 (2004)
  33. Polgár, Entomologia Experimentalis et Applicata, 97, 21 (2000)
  34. Polgár, Agriculture, Ecosystems and Environment, 52, 19 (1995)
  35. Rivero, Evolutionary Ecology Research, 4, 407 (2002)
  36. Rivers, Journal of Insect Physiology, 46, 99 (2000)
  37. Saunders, Physiological Entomology, 22, 249 (1997)
  38. Sigsgaard, Entomologia Experimentalis et Applicata, 95, 173 (2000)
  39. Tauber, Annual Review of Entomology, 21, 81 (1976)
  40. Tauber, Seasonal Adaptations of Insects (1986)
Bibliographic reference Colinet, Hervé ; Muratori, Frédéric ; Hance, Thierry. Cold-induced expression of diapause in Praon volucre: fitness cost and morpho-physiological characterization. In: Physiological Entomology: from biochemistry to behaviour, Vol. 35, no. 4, p. 301-307 (2010)
Permanent URL http://hdl.handle.net/2078.1/71077