Intraspecific crossability and compatibility within Solanum aethiopicum

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dc.contributor.authorButeme, Ruth
dc.contributor.authorNakajiri, Mary
dc.contributor.authorKucel, Newton
dc.contributor.authorNahamya Kabod, Pamela
dc.contributor.authorSseremba, Godfrey
dc.contributor.authorBalyejusa Kizito, Elizabeth
dc.date.accessioned2022-12-29T21:07:42Z
dc.date.available2022-12-29T21:07:42Z
dc.date.issued2021
dc.description.abstractUnderstanding hybridization barriers is relevant for germplasm conservation and utilization. The prezygotic barriers to hybridization include floral morphological differences like pistil and stamen length, pollen characteristics and pollen-pistil interactions. This study sought to elucidate the reproductive biology of Solanum aethiopicum; its mating systems and compatibility barriers. Eight genotypes of Solanum aethiopicum were examined for differences in floral morphology, phenology and cross compatibility in a full diallel mating design, with assessment of fruit set, seed set and seed viability. In-vivo pollen tube growth was observed for failed crosses at 24, 48 and 72 h after pollination. All genotypes had heterostyly flowers, with predominantly small white petals. Incompatibility was observed in five out of 39 combinations. All selfed genotypes displayed compatibility implying the genotypes are self-compatible. Pollen–pistil incompatibility, which was exhibited in four out of the five failed cross combinations, occurred on the stigma, upper style and lower style, a phenomenon typical in Solanaceae. Solanum aethiopicum is self-compatible and majorly self-pollinating but has features that support cross-pollination.en_US
dc.identifier.citationButeme, R., Nakajiri, M., Kucel, N., Kabod, P. N., Sseremba, G., & Kizito, E. B. (2021). Intraspecific crossability and compatibility within Solanum aethiopicum. Heliyon, 7(7), e07645. https://doi.org/10.1016/j.heliyon.2021.e07645en_US
dc.identifier.urihttps://doi.org/10.1016/j.heliyon.2021.e07645
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/6762
dc.language.isoenen_US
dc.publisherHeliyonen_US
dc.subjectPollen viability in vitroen_US
dc.subjectPollen tube growth in vivoen_US
dc.subjectPollen-pistil interactionen_US
dc.subjectStyle exsertionen_US
dc.subjectIntraspecific hybridizationen_US
dc.subjectSolanum aethiopicumen_US
dc.titleIntraspecific crossability and compatibility within Solanum aethiopicumen_US
dc.typeArticleen_US
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