Search Results - Genes Africa.

High-resolution mapping of resistance to cassava mosaic geminiviruses in cassava using genotypingbysequencing and its implications for breeding by Rabbi, Ismail Y., Hamblin, M., Kumar, P. Lava, Gedil, Melaku A, Ikpan, A., Jannink, Jean-Luc, Kulakow, Peter A.

“…However, most of the landraces carrying the monogenic resistance are morphologically very similarand come from a geographically restricted area of West Africa, raising the possibility that the diversityof the single-gene resistance could be very limited, or even located at a single locus. …”
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Estado actual y proyección de la investigación relacionada con mancha angular del frijol (Phaeoisariopsis griseola) by Jara, Carlos E., Castellanos, G., Mahuku, George S.

“…Because knowledge of the genetic diversity and pathogenic variation of the pathogen is nec essary for the identification of durable sources of resistances for a breeding program, we used a set of 12 common bean differential varieties to characterize 419 P. griseola isolates collected from differ ent zones and countries of the world were beans are grown. All iso lates from Africa and Latin America were distributed into two large groups, Andean and Mesoamerican that were highly correlated to common bean gene pools. …”
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Conservation of livestock biodiversity and its relevance to food security by Negussie, E., Ayalew, W.

“…The future of sustainable agriculture depends on the availability of a sufficiently large gene pool firm which useful genes can be selected. …”
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Mapping of QTL associated with resistance to Cassava Brown Streak and Mosaic Diseases in outcrossing cassava cultivars locally cultivated in Tanzania by Masumba, E., Merwe, A. van der, Myburg, Z., Kapinga, F., Kasele, S., Kulembeka, H.P., Mkamilo, G.S., Rounsley, S., Prochnik, S.E., Kanju, E., Ferguson, Morag E.

“…Despite these efforts, CBSD is spreading, threatening central and western Africa. Identification of molecular markers associated with observed plant resistance and tolerance would facilitate marker assisted breeding leading to efficient breeding, knowledge-based deployment of resistance genes and pre-emptive breeding in West Africa. …”
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AFLP and AFLPderived SCAR markers associated with Striga gesnerioides resistance in cowpea by Boukar, O., Kong, L., Singh, B.B., Murdock, L., Ohm, H.W.

“…Five virulence genotypes (races) of S. gesnerioides have been identified in different regions of Africa. Several host resistance genes have also been identified that are effective against specific races of S. gesnerioides The rapid spread of this parasitic weed creates an urgent need for cowpea varieties with multiple resistance genes. …”
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Association between zigzag stem habit and resistance/tolerance to cassava brown streak virus disease by Kanju, E., Mahungu, N.M., Whyte, J., Dixon, A.

“…Cassava is an important food staple in the coastal provinces of east and southern Africa. However, its production is adversely affected by cassava brown streak virus disease (CBSD). …”
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The role of genetics in understanding and improving heat tolerance in tropical African livestock by Habimana, V., Mrode, Raphael A., Chenyambuga, S.W., Ekine-Dzivenu, Chinyere C., Houaga, I.

“…Identifying and measuring appropriate phenotypic indicators of heat tolerance and understanding the genetic basis are very important steps for breeding heat-tolerant animals that are highly adaptable to the climatic conditions in Africa. This case study highlights recent advances on heat tolerance in livestock reared in tropical countries with a focus on Africa, the challenges faced by African countries in estimating the genetic value of heat-tolerant livestock and indicate the future directions for heat tolerance studies in Africa. …”
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Genome diversity and signatures of selection for production and performance traits in dromedary camels by Bahbahani, Hussain, Musa H.H., Wragg, D., Shuiep, E.S., Almathen, F., Hanotte, Olivier H.

“…Dromedary camels (Camelus dromedarius) are single-humped animals found throughout the deserts of Africa, the Arabian Peninsula, and the southwest of Asia. …”
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Whole genome diversity of indigenous chicken populations in Ethiopia by Kebede, A., Tesfaye, K., Belay. G., Vallejo, A., Dessie, Tadelle, Spark, N., Hanotte, Olivier H., Raman, L.., Gheyas, Almas A.

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Molecular basis of disease resistance in banana progenitor Musa Balbisiana against Xanthomonas Campestris pv. Musacearum by Tripathi, L., Tripathi, J., Shah, T., Muiruri, K.S., Katari, M.

“…Genes associated with response to biotic stress were up-regulated in Musa balbisiana. …”
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Molecular markers dispute the existence of the Afro-Andean group of the bean angular leaf spot pathogen, Phaeoisariopsis griseola by Mahuku, George S., Henriquez Naranjo, MA, Muñoz, J., Buruchara, Robin Arani

“…Analysis of molecular variance ascribed 2.8% of the total genetic variation to differences between Afro-Andean and Andean isolates from Africa. Gene diversity analysis revealed no genetic differentiation (GST = 0.004) between Afro-Andean and Andean isolates from Africa. …”
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Investigation of X- and Y-specific single nucleotide polymorphisms in taurine (Bos taurus) and indicine (Bos indicus) cattle by Anderung, C., Hellborg, L., Seddon, J., Hanotte, Olivier H., Gotherstrom, A.

“…Today, we find both African Bos taurus and Bos indicus cattle, as well as their crossbreeds, on the continent of Africa and they all share the same set of African taurine mitochondrial DNA haplogroups. …”
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Genomic analysis of Nigerian indigenous chickens reveals their genetic diversity and adaptation to heat-stress by Rachman, M.P., Bamidele, O., Dessie, Tadelle, Smith, J., Hanotte, Olivier H., Gheyas, A.A.

“…Indigenous poultry breeds from Africa can survive in harsh tropical environments (such as long arid seasons, excessive rain and humidity, and extreme heat) and are resilient to disease challenges, but they are not productive compared to their commercial counterparts. …”
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Identification of quantitative trait loci associated with nutrient use efficiency traits, using SNP markers in an early backcross population of rice (Oryza sativa L.) by Jewel, Zilhas Ahmed, Ali, Jauhar, Mahender, Anumalla, Hernandez, Jose, Pang, Yunlong, Li, Zhikang

“…The development of rice cultivars with nutrient use efficiency (NuUE) is highly crucial for sustaining global rice production in Asia and Africa. However, this requires a better understanding of the genetics of NuUE-related traits and their relationship to grain yield. …”
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Quantitative trait loci for phenology, yield, and phosphorus use efficiency in cowpea by Mohammed, S.B., Ongom, P.O., Belko, N., Umar, M.L., Munoz-Amatriain, M., Huynh, B., Togola, A., Ishiyaku, M.F., Boukar, O.

“…Background/Objectives: Cowpea is an important legume crop in sub-Saharan Africa (SSA) and beyond. However, access to phosphorus (P), a critical element for plant growth and development, is a significant constraint in SSA. …”
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Exposure to aflatoxin B1 in utero is associated with DNA methylation in white blood cells of infants in The Gambia by Hernández Vargas, H., Castelino, J., Silver, M.J., Domínguez Salas, Paula, Cros, M.P., Durand, G., Calvez-Kelm, F. Le, Prentice, A.M., Wild, C.P., Moore, S.E., Hennig, B.J., Herceg, Z., Yun Yun Gong, Routledge, M.N.

“…Aflatoxin is a contaminant of staple foods in sub-Saharan Africa, is a known human liver carcinogen and has been associated with stunting in infants. …”
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Data: Genome-wide association study of cassava brown streak disease resistance in cassava germplasm conserved in South America by Ospina Colorado, Jessica Alejandra, Lopez Alvarez, Diana Carolina, Gimode, Winnie Riziki Adu, Wenzl, Peter, Carvajal Yepes, Monica

“…Cassava (Manihot esculenta Crantz) is a vital carbohydrate source for over 800 million people globally, yet its production in East Africa is severely affected by cassava brown streak disease (CBSD). …”
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Safety of weevil resistant sweetpotato varieties by International Potato Center

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Phenotyping common beans for adaptation to drought by Beebe, Stephen E., Rao, Idupulapati M., Blair, Matthew W., Acosta Gallegos, Jorge Alberto

“…Common bean production is subject to frequent droughts in highland Mexico, in the Pacific coast of Central America, in northeast Brazil, and in eastern and southern Africa from Ethiopia to South Africa. This article reviews efforts to improve common bean for drought tolerance, referring to genetic diversity for drought response, the physiology of drought tolerance mechanisms, and breeding strategies. …”
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The genetic control of glabrous glume during African rice domestication by Chang, L., Hu, M., Ning, J., He, W., Gao, J., Ndjiondjop, M.N., Fu, Y., Liu, F., Sun, H., Gu, P., Sunc, C., Zhu, Z.

“…The identification of the GLAG5 gene provides new insights into the domestication of cultivated rice in Africa. …”
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