Protoplasma

, Volume 208, Issue 1–4, pp 107–114 | Cite as

Early-inbreeding depression inVaccinium myrtillus andV. vitis-idaea

  • P. Guillaume
  • A. -L. Jacquemart
Article

Summary

Fertility parameters were estimated inVaccinium myrtillus andV. vitis-idaea after self- and cross-pollinations performed in growth chamber. We showed a drastic decrease in fertility after self-pollination as compared to cross-pollination. Number of plump seeds per berry was compared with previous field data. In both species, growth room conditions improved plump seed number after cross-pollination but not after self-pollination. In addition, in order to enhance resources supply to young developing fruits, cytokinin application was tested inV. myrtillus but no effect was detected. We hypothesize that the partial self-sterility is due to inbreeding depression based on the expression of recessive lethals.

Keywords

Vaccinium myrtillus Vaccinium vitis-idaea Inbreeding depression Cytokinin application 

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Copyright information

© Springer-Verlag 1999

Authors and Affiliations

  • P. Guillaume
    • 1
    • 2
  • A. -L. Jacquemart
    • 2
  1. 1.Laboratoire de Cytogénétique, Unité de BotaniqueUniversité Catholique de LouvainLouvain-la-NeuveBelgium
  2. 2.Unité d'Ecologie et de BiogéographieUniversité Catholique de LouvainLouvain-la-Neuve

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