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Parental participation in progeny and effective population sizes in experimental seed orchards of wild cherry Prunus avium L. (Batsch) |
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| Authors: | Stéphanie Mariette Emilie Balsemin Solenn Stoeckel Muriel Tavaud Hervé Le Bouler Frédérique Santi Michel Verger |
| Institution: | 1. Unité de Recherches ?écosystèmes Forestiers?, Domaine des Barres, 45290, Nogent-sur-Vernisson, France 2. Laboratoire écologie, Systématique et évolution, Université Paris XI, Bat. 360, 91405, Orsay, France 3. Unit of Forest Genetics, Center of Forest Research (CIFOR-INIA), INIA, Carretera de la Coru?a Km 7.5, 28040, Madrid, Spain 4. INRA UREFV, 71 avenue Edouard Bourlaux, BP 81, 33883, Villenave d’Ornon Cedex, France 5. Domaine de Melgueil, INRA, 34130, Mauguio, France 6. Pépinière Expérimentale, Route de Redon, 44290, Guémené-Penfao, France 7. Unité Amélioration, Génétique et Physiologie Forestières, INRA, Avenue de la Pomme de Pin, 45166, Olivet, France |
| Abstract: | Parents and progenies genetic diversity, and male and female contributions to the seed crop were assessed in three experimental Prunus avium seed orchards. Collected data were used to compare different effective population sizes, based on phenological, seed crop and paternity analysis. Our results did not show any difference of genetic diversity between parents and progenies. A limited pollen pollution was detected. We showed that distance and coflowering among clones had a significant effect on effective pollination, and a significant effect of the production of flowers was revealed in one of the seed orchards. Our study also revealed a quite low number of effective size of fathers per mother, but high effective sizes of mothers, fathers and parents at the level of the seed orchard. Finally, the calculation of effective size of mothers, fathers and parents was not highly modified when having the complete information based on the paternity analysis. |
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