Schriften zu Genetischen Ressourcen - Genres

L. FRESE
variation for resistance are crossed to a monogerm, self-fertile sugar beet population
that segregates for genic male sterility (so-called Doggett population). The breeding
scheme ensures maintenance of 50% wild genome in the F1 to F3 or further generations
and allows a maximum recombination between the sugar beet and wild beet
genome. It is assumed that novel genes for C. beticola resistance will be incorporated
into the sugar beet breeding pool enabling future breeding progress (FRESE et
al. 2001). Because of the difficulties of all sugar beet breeders regarding the development
of highly leaf spot resistant cultivars, and the economic risks connected with
a long-term utilisation strategy, collaboration between companies in Europe appeared
to be advantageous. This joint breeding effort is currently co-ordinated
through the Study Group Breeding and Genetics of the International Institute for
Sugar Beet Research (IIRB).
References
ASHER, M. and M. LUTERBACHER (2001): Individual report. In: BAZ GENE BANK:
Evaluation and enhancement of Beta collections for extensification of agricultural
production (GENRES CT95-42). Fifth project report.
ANONYMOUS (1995): Descriptors for Beta (Beta spp.) CPRO-DLO-CGN/IPGRI, Rome.
BARANSKI, R., D. GRZEBELUS and L. FRESE (2001): Estimation of genetic diversity in a
collection of the garden beet group. - Euphytica, 122 (1), 19-29.
BUTTLER, K. (1977): Revision von Beta Sektion Corollinae (Chenopodiacea). I.
Selbststerile Basisarten. - Mitt. Bot. München, 13, 255-336.
DALKE, L., K. KUZDOWICZ, W. PODYMA, D. NOWOSIELSKA, P. HAUPTVOGEL and R.L.
BOGUSLAVSKIJ (2000): Variation in beet resources collected in Ukraine and Slovak
Carpathian mountains. In: MAGGIONI, L., FRESE, L., GERMEIER, C. and E.
LIPMAN (compilers). Report of a working group on Beta. First meeting, 9-10
September 1999, Broom’s Barn, Higham, Bury St. Edmonds, United Kingdom.
International Plant Genetic Resources Institute, Rome, Italy. pp. 70-71-.
DONEY, D.L. (1998): Beta evaluation and sugar beet enhancement from wild sources.
In: FRESE, L., PANELLA, L., SRIVASTAVA, H.M. and W. LANGE (Eds.): International
Beta Genetic Resources Network. A report on the 4 th International Beta Genetic
Resources Workshop and World Beta Network Conference held at the Aegean
Agricultural Research Institute, Izmir, Turkey, 28 February – 3 March 1996. International
Crop Network Series No. 12. IPGRI, Rome. pp. 73-77.
DONEY, D.L., B.V. FORD-LLOYD, L. FRESE and A. TAN (1995): Scientists worldwide rally
to rescue the native beets of the Mediterranean. - Diversity 11 (1 and 2), 124-
125.
FORD-LOYD, B.V. (2000): Individual report. In: BAZ Gene Bank: Evaluation and enhancement
of Beta collections for extensification of agricultural production
(GENRES CT95-42). Fourth project report.
179