Control of bean common mosaic by deployment of the dominant gene I

Rheenen, H. A. van; Muigai, S. G. S.

doi:10.1007/bf01994513

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…The basis of most bean breeding programmes in Africa has been the direct introduction of improved heavy yielding germplasm (Allen & Smithson, 1991) much of which has tended to possess the dominant I gene. Whereas the judicious deployment of such material is sometimes recommended (Van Rheenen & Muigai, 1984) and may yet prove a sound strategy in a country like Ethiopia where BCMNV appears to be absent (Spence & Walkey, 1994), a safer strategy that is now followed in both eastern and southern Africa (Mukoko et al, 1995;H. E. Gridley, 1994, Kawanda, Uganda, personal communication) is the combination of the I gene and the recessive genes bc-2 2 or bc-3 to confer total resistance against all known pathogenicity genes of BCMNV and BCMV.…”

Section: Calopogonium Caeruleummentioning

confidence: 99%

The occurrence of bean common mosaic necrosis virus in wild and forage legumes in Uganda

Sengooba

Spence²,

Walkey³

et al. 1997

Plant Pathology

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Bean common mosaic necrosis virus (BCMNV) was isolated from Centrosema pubescens, Crotalaria incana, Lablab purpureus, Phaseolus lunatus, Senna bicapsularis, S. sophera, Vigna vexillata and an unidentified Crotalaria species growing in Uganda. Thirteen distinct isolates were characterized using symptoms, pathogenicity in differential bean cultivars, serology, immunosorbent electron microscopy, and seed and aphid transmission. Some isolates conformed with the characteristics of previously described strains of BCMNV but others showed novel properties. All isolates reinfected the natural host from which they were obtained. The origin and ecological significance of these isolates is discussed.

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Section: Calopogonium Caeruleummentioning

confidence: 99%