Evaluation of fitness in F 2 generations of Africa Biofortified Sorghum event 188 and weedy Sorghum bicolor ssp. drummondii

Magomere, Titus; Obukosia, Silas D.; Albertsen, Mark; Wambugu, Florence; Kamanga, Daniel; Njuguna, Michael; Gaffney, Jim; Zhao, Zuo Yu; Che, Ping; Aseta, Antony; Kimani, Esther; Mwasame, E.

doi:10.1016/j.ejbt.2016.06.001

Cited by 5 publications

(2 citation statements)

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“…Attempts have been undertaken to improve the quality of sorghum grains for protein and vitamin content (biofortified sorghum) (Henley et al, 2010;. Magomere et al (2016) tested whether the presence of biofortified genes would influence the vegetative and reproductive growth of the hybrids between cultivated sorghum (S. bicolor ssp. bicolor) and wild sorghum species (S. bicolor ssp.…”

Section: B Sorghum Trait-specific Implicationsmentioning

confidence: 99%

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Gene Flow and its Consequences inSorghumspp.

Ohadi

Hodnett

Rooney

et al. 2017

Critical Reviews in Plant Sciences

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Gene flow between crops and their weedy or wild relatives can be problematic in modern agricultural systems, especially if it endows novel adaptive genes that confer tolerance to abiotic and biotic stresses. Alternatively, gene flow from weedy relatives to domesticated crops may facilitate ferality through introgression of weedy characteristics in the progeny. Cultivated sorghum (Sorghum bicolor), is particularly vulnerable to the risks associated with gene flow to several weedy relatives, johnsongrass (S. halepense), shattercane (S. bicolor ssp. drummondii) and columbusgrass (S. almum). Johnsongrass and shattercane are common weeds in many sorghum production areas around the world. Sorghum varieties with adaptive traits developed through conventional breeding or novel transgenesis pose agronomic and ecological risks if transferred into weedy/wild relatives. Knowledge of the nature and characteristics of gene flow among different sorghum species is scarce, and existing knowledge is scattered. Here, we review current knowledge of gene flow between cultivated sorghum and its weedy and wild relatives. We further discuss potential avenues for addressing gene flow through genetic, molecular, and field level containment, mitigation and management strategies to facilitate successful deployment of novel traits in this economically important crop species.

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Section: B Sorghum Trait-specific Implicationsmentioning

confidence: 99%

“…S. sudanense £ S. bicolor F1 S. bicolor (ABS transgene) (<) £ S.bicolor ssp. drummondii (,)F2The hybrids between African Biofortified Sorghum even 188 (ABS) and S. halepense (i.e., transgene hybrids) did not increase fitness compared to the non-transgene hybrid (Magomere et al, 2016). Ã reciprocal crosses.…”

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confidence: 99%