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

: 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...

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Bibliographic Details
Published in:	Journal of forest science (Praha) Vol. 48; no. 3; pp. 115 - 120
Main Authors:	V. Benetka, K. Vacková, I. Bartáková, M. Pospíšková, M. Rasl
Format:	Journal Article
Language:	English
Published:	Czech Academy of Agricultural Sciences 01-03-2002
Subjects:	controlled crossing introgression open pollination populus nigra l. ssp. nigra populus × canadensis moench
Online Access:	Get full text
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Summary:	: 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.
ISSN:	1212-4834 1805-935X
DOI:	10.17221/11863-JFS