Introgression in black poplar (Populus nigra L. ssp. nigra) and its transmission

V. Benetka, K. Vacková, I. Bartáková, M. Pospíšková and M. Rasl
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V. Benetka: Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Prùhonice, Czech Republic
K. Vacková: Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Prùhonice, Czech Republic
I. Bartáková: Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Prùhonice, Czech Republic
M. Pospíšková: Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Prùhonice, Czech Republic
M. Rasl: Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Prùhonice, Czech Republic

Journal of Forest Science, 2002, vol. 48, issue 3, 115-120

Abstract: : Introgression was studied in the offspring of P. nigra and P. × canadensis female trees using 3 enzymatic patterns (6-PGD, LAP and GPI). Our investigations were aimed at the offspring from open pollination and controlled pollination by the pollen mixture from 3 clones of P. nigra and 3 clones of P. × canadensis. The rate of introgression in P. nigra offspring from open pollination was 0.67%. Introgression in 3 offsprings of P. nigra from controlled pollination was 7.14%. In P. × canadensis the heterozygous: homozygous phenotype ratio in 2 offsprings from open pollination was 1:1; it documents prevailing fertilization by P. nigra pollen. After fertilization by the pollen mixture this segregation ratio was 1:1 (6-PGD; GPI) or 3:1 (LAP). The offspring of P. × canadensis maternal components are assumed to have a major share in introgression.

Keywords: introgression; open pollination; controlled crossing; Populus nigra L. ssp. nigra; Populus × canadensis Moench (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:48:y:2002:i:3:id:11863-jfs

DOI: 10.17221/11863-JFS

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