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Reduction of pollen contamination in Scots pine seed orchard crop by tent isolation
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences. Hirosaki University, Hirosaki, Japan.
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2013 (English)In: Scandinavian Journal of Forest Research, ISSN 0282-7581, Vol. 28, no 8, 715-723 p.Article in journal (Refereed) Published
Abstract [en]

This study examined the differences in mating system between indoor versus outdoor Scots pine (Pinus sylvestris L.) seed orchard using DNA markers. By analyzing the paternities in seed crops from isolation tents, we found a significant reduction in contamination rate, from 23% in the outdoor open blocks to 0% inside the tents. Increase in selfing rate and a decrease in genetic diversity in the crops were also observed inside the tents. These undesirable effects can be mitigated to some extent by the supplementation of extra pollen genotypes, e.g. selfing rate decreased from 14.4% to 6.6% and the effective number of fathers increased from 6 to 11.4 in the tents without and with supplemental mass pollination, respectively. Our study showed that tent isolation may become an effective rescuer for seed orchards where pollen contamination is severe.

Place, publisher, year, edition, pages
Taylor & Francis, 2013. Vol. 28, no 8, 715-723 p.
Keyword [en]
mating success, isolation, Pinus sylvestris, pollen contamination, seed orchard, self-fertilization
National Category
Forest Science
URN: urn:nbn:se:umu:diva-85299DOI: 10.1080/02827581.2013.838298ISI: 000327833800001OAI: diva2:694036
Swedish Research Council Formas
Available from: 2014-02-05 Created: 2014-01-31 Last updated: 2015-02-27Bibliographically approved

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Torimaru, TakeshiWang, Xiao-Ru
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Department of Ecology and Environmental Sciences
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