IMPACT OF PARENTS GENETIC DIVERGENCE ON HETEROSIS OF F1-HYBRIDS OF SPRING TRITICALE



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Abstract

Molecular heterogeneity was studied in 20 spring triticale accessions by using ISSR- and RAPD-markers, which allowed the studied material to be grouped according to the degree of genetic relationship and to choose genetically distant parental pairs for crosses to obtain heterotic hybrids. Expression of heterosis of F1 triticale hybrids was studied. Evaluation of the degree of parents genetic divergence on the heterosis level of F1-hybrids revealed that increase of genetic distance values between parental components leads to higher probability of obtaining heterotic hybrids.

About the authors

Olga A Orlovskaya

Institute of Genetics and Cytology of the NASB, Minsk, Republic of Belarus

Email: O.Orlovskaya@igc.bas-net.by 220072, Republic of Belarus, Minsk, Akademicheskaya St., 27

Lidia V Koren

Institute of Genetics and Cytology of the NASB, Minsk, Republic of Belarus

Email: L.Koren@igc.bas-net.by 220072, Republic of Belarus, Minsk, Academycheskaya St., 27

Lubov V Khotyleva

Institute of Genetics and Cytology of the NASB, Minsk, Republic of Belarus

Email: L.Khotyleva@igc.bas-net.by 220072, Republic of Belarus, Minsk, Academycheskaya st., 27

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Copyright (c) 2012 Orlovskaya O.A., Koren L.V., Khotyleva L.V.

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