Prospects of using self-fertility in breeding rye populations varieties

Prospects of using self-fertility in breeding rye populations varieties The advances in rye hybrid breeding are due to the use of self-fertile forms. Rye self-fertility is determined by mutations in one of the three gametophytic loci (S, Z, and T), which control the reaction of incompatibility. Attempts to construct synthetic populations by combining self-fertile forms selected by general combining ability failed because of high-rate selfing. A breeding scheme was proposed to include crosses of a line carrying a self-fertility mutation in the S locus with the population subject to improvement, selfing of the resulting hybrids, selection and intermating of the best inbred progenies, and subsequent elimination of the self-fertility mutation from the breeding material with the use of the Prx7 allozyme marker. The scheme can be employed in improvement of the existing rye varieties, their differentiation into populations differing in end use, and construction and improvement of complementary gene pools in hybrid breeding. To facilitate the implementation of the scheme, an original instrument was designed for high-throughput isozyme analysis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Prospects of using self-fertility in breeding rye populations varieties

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2007 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795407100122
Publisher site
See Article on Publisher Site

Abstract

The advances in rye hybrid breeding are due to the use of self-fertile forms. Rye self-fertility is determined by mutations in one of the three gametophytic loci (S, Z, and T), which control the reaction of incompatibility. Attempts to construct synthetic populations by combining self-fertile forms selected by general combining ability failed because of high-rate selfing. A breeding scheme was proposed to include crosses of a line carrying a self-fertility mutation in the S locus with the population subject to improvement, selfing of the resulting hybrids, selection and intermating of the best inbred progenies, and subsequent elimination of the self-fertility mutation from the breeding material with the use of the Prx7 allozyme marker. The scheme can be employed in improvement of the existing rye varieties, their differentiation into populations differing in end use, and construction and improvement of complementary gene pools in hybrid breeding. To facilitate the implementation of the scheme, an original instrument was designed for high-throughput isozyme analysis.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Oct 15, 2007

References

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