Hugo E. Cuevas
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The NPGS Sudan sorghum germplasm collection reveals a novel cluster of R genes associated with rust resistant Open
Leaf rust, caused by the obligate fungal pathogen Puccinia purpurea , poses a serious threat to sorghum [ Sorghum bicolor (L.) Moench] production leading to significant yield losses and undermining its values as renewable fuel crop. In thi…
Association and Interrelationship Among Agronomic Traits and Fungal Diseases of Sorghum, Anthracnose and Grain Mold Open
Anthracnose and grain mold are two of the most significant diseases of sorghum, a versatile crop that plays an important part in the daily lives of millions of inhabitants, especially in the drier tropical regions. The aim of this study wa…
GWAS analysis for plant height and stem diameter in sorghum using multiple phenotyping approaches Open
Sorghum ( Sorghum bicolor (L.) Moench) is an important cereal crop cultivated around the globe. To identify the genomic regions responsible for plant height and stem diameter, a subset of the sorghum association panel was phenotyped using …
Dual-RNA-sequencing to elucidate the interactions between sorghum and Colletotrichum sublineola Open
In warm and humid regions, the productivity of sorghum is significantly limited by the fungal hemibiotrophic pathogen Colletotrichum sublineola , the causal agent of anthracnose, a problematic disease of sorghum ( Sorghum bicolor (L.) Moen…
Invasive sorghum aphid: A decade of research on deciphering plant resistance mechanisms and novel approaches in breeding for sorghum resistance to aphids Open
During the last decade, the sorghum aphid ( Melanaphis sorghi ), previously identified as sugarcane aphid ( Melanaphis sacchari ), became a serious pest of sorghum, spreading to all sorghum‐producing regions in the United States, Mexico, a…
The NPGS Sudanese sorghum core collection encloses novel grain mold resistant germplasm Open
Grain mold is one of the most devasting diseases in sorghum [ Sorghum bicolor L. (Moench)] that affects the endosperm and deteriorates the pericarp tissue, reducing the quality of the grain. Today, sorghum breeding programs have a limited …
Association analysis of grain mould resistance in a core collection of NPGS Ethiopian sorghum germplasm Open
The Ethiopian core collection of the USDA-Agriculture Research Service, National Plant Germplasm System (NPGS) includes 376 accessions and a genomic characterization that revealed 151,210 single nucleotide polymorphisms. This collection, h…
Correlations among Agronomic Traits Obtained from Sorghum Accessions Planted in a Field Infected with Three Important Fungal Diseases Open
A total of 179 sorghum cultivars planted in replicated plots in Isabela, Puerto Rico, were evaluated for five agronomically important traits grain yield, seed weight, panicle height, panicle length, and flowering time. This study identifie…
Genetic Diversity and Classification of Colletotrichum sublineola Pathotypes Using a Standard Set of Sorghum Differentials Open
Anthracnose, incited by Colletotrichum sublineola, is the most destructive foliar disease of sorghum and, under severe conditions, yield losses can exceed 80% on susceptible cultivars. The hyper-variable nature of the pathogen makes its ma…
Genetic diversity, population structure and anthracnose resistance response in a novel sweet sorghum diversity panel Open
Sweet sorghum is an attractive feedstock for the production of renewable chemicals and fuels due to the readily available fermentable sugars that can be extracted from the juice, and the additional stream of fermentable sugars that can be …
Genetic dissection of morphological variation between cauliflower and a rapid cycling <i>Brassica oleracea</i> line Open
To improve resolution to small genomic regions and sensitivity to small-effect loci in the identification of genetic factors conferring the enlarged inflorescence and other traits of cauliflower while also expediting further genetic dissec…
Genomic dissection of anthracnose resistance response in sorghum [Sorghum bicolor (L.) Moench] Open
Sorghum [Sorghum bicolor (L.) Moench] is the fifth most important grain crop behind maize, wheat, rice, and barley. Today, it is of interest as a source of fermentable sugars for the production of renewable fuels and chemicals, and as a so…
Assessment of Grain Protein in Tropical Sorghum Accessions from the NPGS Germplasm Collection Open
The development of higher nutritional sorghum varieties requires the identification of high protein content germplasm that expands the genetic diversity of breeding programs. Therefore, a near-infrared (NIR) spectroscopy method was develop…
Reaction of Sorghum Differentials to Grain Mold Infection in Puerto Rico Open
Grain mold, associated with many fungi, is the most important disease of sorghum, causing both yield and quality losses. In this study, 23 sorghum differentials used in pathotype characterization of anthracnose and head smut pathogens were…
Uncovering novel sources of anthracnose resistance in populations of genetically diverse sorghums <em>Sorghum bicolor (L.) Moench</em> Open
Anthracnose (Colletotrichum sublineolum P. Henn., in Kabat and Bubák) is the major disease of sorghum [Sorghum bicolor (L.) Moench] in the Southeastern United States and the Caribbean, where the acreage of sorghum has been expanding rapidl…
Genetic mapping of sugarcane aphid resistance in sorghum line SC112‐14 Open
Sugarcane aphid [ Melanaphis sacchari (Zehntner)] is a destructive pest that has had an economic effect on sorghum in North America since 2013. The identification, development, and use of resistant sorghum germplasm is the most feasible st…
Response of Sorghum Accessions from Three African Countries to Anthracnose, Grain Mould and Rust Open
Background and Objective: Sorghum is one of the most indispensable crops, especially in the drier tropics where many millions of people rely on it for their daily calories intake.However, the crop is hampered by several biotic stresses, ca…
Evaluation of a Subset of Ethiopia Sorghum Collection Germplasm from the National Genetic Resources Program of the United States Department of Agriculture for Anthracnose Resistance Open
Globally, one of the most devastating diseases of sorghum is anthracnose incited by Colletotrichum sublineola. During the 2019 and 2020 growing seasons, 94 and 64 accessions from the Ethiopian sorghum germplasm collection maintained by the…
Sorghum genetic, genomic, and breeding resources Open
Main conclusion Sorghum research has entered an exciting and fruitful era due to the genetic, genomic, and breeding resources that are now available to researchers and plant breeders. Abstract As the world faces the challenges of a rising …
Sorghum Seed Fungal Community and Their Association with Grain Mold Severity, Seed Weight, and Germination Rate Open
Grain mold, considered the most important disease of sorghum, is associated with several fungal genera. The disease reduces both yield and quality. In this study, over 300 sorghum seed samples collected from Texas, Florida, and Georgia wer…
Genomic Dissection of Anthracnose (<i>Colletotrichum sublineolum</i>) Resistance Response in Sorghum Differential Line SC112-14 Open
Sorghum production is expanding to warmer and more humid regions where its production is being limited by multiple fungal pathogens. Anthracnose, caused by Colletotrichum sublineolum, is one of the major diseases in these regions, where it…
Screening Sorghum Accessions for Resistance against Anthracnose and Grain Mold through Inoculating with Pathogens Open
Aims: The aim of this study was to identify resistant accessions against pathogens, causing anthracnose and grain mold. Study Design: Study was laid out in a randomized complete block design with three replications. Data for anthracnose ra…
Additional file 1 of Evaluation of genetic diversity, agronomic traits, and anthracnose resistance in the NPGS Sudan Sorghum Core collection Open
Additional file 1: Table S1. List of sorghum accessions from the USDA-NPGS Sudanese core collection. Table S2. Hierarchical organization of the genetic relatedness of 318 accessions from the USDA-NPGS Sudan germplasm collection based on th…
View article: New sources of sorghum resistant genotypes to downy mildew disease in Uganda
New sources of sorghum resistant genotypes to downy mildew disease in Uganda Open
Kumi F, Badji A, Mwila N, Odong T, Ochwo-Ssemakula M, Tusiime G, Gibson P, Biruma M, Prom KL, Cuevas HE, Agbahoungba S, Rubaihayo P. 2019. New sources of sorghum resistant genotypes to downy mildew disease in Uganda. Biodiversitas 20: 3391…
Genome-Wide Association Mapping of Anthracnose (<i>Colletotrichum sublineolum</i>) Resistance in NPGS Ethiopian Sorghum Germplasm Open
The National Plant Germplasm System (NPGS) Ethiopian sorghum [Sorghum bicolor (L.) Moench] collection of the United States is an important genetic resource for sorghum improvement. Anthracnose (Colletotrichum sublineolum) is one of the mos…
Genome‐Wide Association Mapping of Grain Mold Resistance in the US Sorghum Association Panel Open
Sorghum [ Sorghum bicolor (L.) Moench] production in warm and humid regions is limited by grain mold disease, which can be caused by a complex of >40 pathogenic and opportunistic fungi. The identification of resistant plants within tempera…
Genomic dissection of anthracnose resistance response in sorghum [<em>Sorghum bicolor</em> (L.) Moench] Open
Sorghum [Sorghum bicolor (L.) Moench] is the fifth most important grain crop behind maize, wheat, rice, and barley. Today, it is of interest as a source of fermentable sugars for the production of renewable fuels and chemicals, and as a so…