Pyramiding Fusarium root rot resistance genes and validation of SSR PVBR87 in common bean
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Date
2010
Journal Title
Journal ISSN
Volume Title
Publisher
RUFORUM
Abstract
This study determined effectiveness of pyramided Fusarium
root rot (FRR) resistance genes and validated association of
SSR PVBR87 marker with FRR resistance in common bean.
A double cross (DC) involving four resistance sources was
used to accumulate FRR resistance genes into one background.
The DC F1
and each resistant line were crossed to two
susceptible cultivars. Parents, F1
and F2 populations were
subjected to FSP-3 in a screenhouse. Two single cross (SC) F2
populations were screened with SSR PVBR87 marker. Five parent crosses performed better than single crosses. SSR
PVBR87 marker showed association with FRR resistance in
the two SC F2
populations.
Description
Keywords
Fusarium root rot, FSP-3 (Fusarium solani f. sp. phaseoli isolate-3), gene pyramiding, SSR (simple sequence repeat)
Citation
Obala, J., Rubaihayo, P. R., Mukankusi, C., & Gibson, P. (2010). Pyramiding Fusarium root rot resistance genes and validation of SSR PVBR87 in common bean. In Second RUFORUM Biennial Regional Conference on" Building capacity for food security in Africa", Entebbe, Uganda, 20-24 September 2010 (pp. 395-398). RUFORUM.