Abstract
Differences in male reproductive success in seven black spruce clones were assessed using isozyme analysis of seeds produced with polymix pollen. Four polycross seedlots were analysed and each showed significant departures from expected contributions by the participating males. Possible explanations for these differences are explored. Results are discussed in relation to the use of polycross seeds from controlled breeding efforts and seed orchards.
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Acknowledgements
Acknowledgements We wish to recognize the technical expertise of Mr Peter Copis in producing the polycross seedlots. We gratefully acknowledge the insightful comments of Dr John Owens and the statistical review by Dr Bob Westfall. Anonymous reviewers made helpful comments that have improved the manuscript.
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Rogers, D., Boyle, T. Unequal paternal contributions in black spruce polycross seedlots. Heredity 67, 373–379 (1991). https://doi.org/10.1038/hdy.1991.101
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DOI: https://doi.org/10.1038/hdy.1991.101
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