Publications by authors named "Samuel Muthemba"

To address food and nutrition security in the face of burgeoning global populations and erratic climatic conditions there is a need to include nutrient dense, climatic resilient but neglected indigenous fruit trees in agrifood systems. Here we present the draft genome sequence of Kei Apple, Dovyalis afra, a neglected indigenous African fruit tree with untapped potential to contribute to nutrient security and improved livelihoods. Our long-read-based genome assembly comprises 440 Mbp sequence across 1190 contigs with a N50 and L50 of 13.

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The nutrient-rich tubers of the greater yam, Dioscorea alata L., provide food and income security for millions of people around the world. Despite its global importance, however, greater yam remains an orphan crop.

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Two of the most economically important plants in the Artocarpus genus are jackfruit (A. heterophyllus Lam.) and breadfruit (A.

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Article Synopsis
  • * Researchers assembled a draft genome for S. aethiopicum, revealing numerous repetitive sequences and identifying over 37,000 gene models, with significant expansions in disease resistance genes linked to historical retrotransposon activity.
  • * The findings facilitate crop improvement by providing breeders with valuable genetic information, including single-nucleotide polymorphisms related to drought tolerance, enhancing the breeding potential not only for S. aethiopicum but also for related Solanaceae crops.
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Article Synopsis
  • The African Orphan Crops Consortium (AOCC) is sequencing the genomes of 101 neglected African crops to combat malnutrition and food insecurity in sub-Saharan Africa.
  • The initiative, established in 2011, focuses on improving the nutritional quality of local crops that are often overlooked but are vital for the dietary needs and cultural practices of African farmers.
  • The project is using advanced genomic technologies and training African scientists to develop resilient crop varieties while emphasizing partnerships across various sectors for effective implementation.
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Background: The expanding world population is expected to double the worldwide demand for food by 2050. Eighty-eight percent of countries currently face a serious burden of malnutrition, especially in Africa and south and southeast Asia. About 95% of the food energy needs of humans are fulfilled by just 30 species, of which wheat, maize, and rice provide the majority of calories.

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Maximizing the research output from a limited investment is often the major challenge for minor and underutilized crops. However, such crops may be tolerant to biotic and abiotic stresses and are adapted to local, marginal, and low-input environments. Their development through breeding will provide an important resource for future agricultural system resilience and diversification in the context of changing climates and the need to achieve food security.

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