A5043496322- Plant Virus Research Studies
- Cocoa and Sweet Potato Agronomy
- Plant Pathogenic Bacteria Studies
- Banana Cultivation and Research
- Genetics and Plant Breeding
- Advances in Cucurbitaceae Research
- Legume Nitrogen Fixing Symbiosis
- Cassava research and cyanide
- Plant Disease Resistance and Genetics
- Chromosomal and Genetic Variations
- Plant Molecular Biology Research
- Genetic Mapping and Diversity in Plants and Animals
- Genetic and phenotypic traits in livestock
- Plant Stress Responses and Tolerance
- Plant Gene Expression Analysis
- Plant-Microbe Interactions and Immunity
- Agricultural Practices and Plant Genetics
- Genetic diversity and population structure
- Photosynthetic Processes and Mechanisms
- Mycobacterium research and diagnosis
- Tuberculosis Research and Epidemiology
- Plant biochemistry and biosynthesis
- Diagnosis and treatment of tuberculosis
- Antioxidant Activity and Oxidative Stress
- Plant nutrient uptake and metabolism
Michigan State University
2023-2025
International Potato Center
2018-2024
Applied Genetic Technologies (United States)
2023
University of Georgia
2023
International Livestock Research Institute
2013-2022
Ollscoil na Gaillimhe – University of Galway
2016-2020
International Potato Center
2019
Sweetpotato [Ipomoea batatas (L.) Lam.] is a globally important staple food crop, especially for sub-Saharan Africa. Agronomic improvement of sweetpotato has lagged behind other major crops due to lack genomic and genetic resources inherent challenges in breeding heterozygous, clonally propagated polyploid. Here, we report the genome sequences its two diploid relatives, I. trifida triloba, show that these high-quality assemblies are robust references hexaploid sweetpotato. Comparative...
β-Carotene content in sweetpotato is associated with the Orange and phytoene synthase genes; due to physical linkage of sucrose synthase, β-carotene starch are negatively correlated. In populations depending on for food security, an important source calories, while provitamin A. The negative association between two traits contributes low nutritional quality consumed, especially sub-Saharan Africa. Using a biparental mapping population 315 F
Besides bananas belonging to the AAA triploid Mutika subgroup, which predominates in Great Lakes countries, other triploids as well edible AA diploids, locally of considerable cultural weight, are cultivated East Africa and nearby Indian Ocean islands far Madagascar. All these varieties call for genetic identification characterization their interrelations on account regional socio-economic significance potential banana breeding strategies.An extensive sampling all traditional near was...
Breeding for sweetpotato ( Ipomea batatas ) resistance requires accelerating our understanding genomic of sources resistance. Nucleotide-binding domain leucine-rich repeat receptors (NLRs) proteins represent a key component the plant immune system that mediate responses. We cataloged NLR diversity in 32 hexaploid genotypes and three diploid wild relatives using gene enrichment sequencing (RenSeq) to capture sequence full NLRs. A custom designed bait-library enriched genes with an average 97%...
General combining ability (GCA) is the major selection criterion for new sweetpotato (Ipomoea batatas) parents in a reciprocal recurrent (RRS) scheme. Here we aimed to estimate GCA and specific (SCA) by using 16 potential testers involved an 8 × partial diallel propose procedure identify breeding. Data on storage root yield tons per hectare (rytha), virus disease (vir2) from 64 families (1,913 clones) were collected five trials at two locations Uganda. The estimates of female accounted...
Continuous storage root formation and bulking (CSRFAB) in sweetpotato is an important trait from agronomic biological perspectives. Information about the molecular mechanisms underlying CSRFAB traits lacking.Here, as a first step toward understanding genetic basis of sweetpotato, we performed genome-wide association study (GWAS) using phenotypic data four distinct developmental stages 33,068 single nucleotide polymorphism (SNP) insertion-deletion (indel) markers. Based on Bonferroni...
Quality assurance and control (QA/QC) is an essential element of a breeding program's optimization efforts towards increased genetic gains. Due to auto-hexaploid genome complexity, low-cost marker platform for routine QA/QC in sweetpotato programs still unavailable. We used 662 parents the International Potato Center (CIP)'s global program spanning Peru, Uganda, Mozambique Ghana, develop low-density highly informative single nucleotide polymorphism (SNP) set be deployed QA/QC. Segregation...
Abstract The hexaploid sweetpotato ( Ipomoea batatas [L.] Lam.) is a globally important stable crop and plays significant role in biofortification. high resilience adaptability of provide it with advantages addressing food security climate change issues. Here we report haplotype-resolved chromosome-level genome assembly an African cultivar, ‘Tanzania’, which enables ancestry inference along the haplotype-phased chromosomes. Our analyses reveal that wild tetraploid I. aequatoriensis ,...
Abstract Background Tuberculosis (TB) is a major cause of mortality and suffering worldwide, with over 95% TB deaths occurring in low- middle-income countries. In recent years, molecular typing methods have been widely used epidemiological studies to aid the control TB, but this usage has not case many African countries, including Cameroon. The aims present investigation were identify evaluate diversity Mycobacterium tuberculosis complex (MTBC) isolates circulating two ecological zones...
Abstract Key message Genetically identical East African Highland banana (EAHB) clones are epigenetically diverse with heritable epialleles that can contribute to morphological diversity. Heritable epigenetic variation agronomic traits in crops and should be considered germplasm conservation. Despite the genetic uniformity arising from a bottleneck of one ancestral clone, followed by subsequent vegetative propagation, bananas (EAHBs) display significant phenotypic diversity potentially...
Sweetpotato,
Effective management of sweet potato diseases such as virus disease (SPVD) depends to a large extent on farmers’ knowledge the well integration recommended methods in their farming practices. SPVD has continued be most important constraining (Ipomoea batatas) production sub-Saharan Africa (SSA). Inadequate information about perception, and practices are major impediments developing countries hindered development effective SPVD. This paper addresses gap by (i) Understanding...
Sweetpotato (Ipomoea batatas L.) is an essential food crop globally, especially for farmers facing resource limitations. Like other crops, sweetpotato cultivation faces significant production challenges due to viral infections. This study aimed identify and characterize viruses affecting crops in Uganda, mostly those associated with virus disease (SPVD). Infected leaf samples were collected from farmers’ fields multiple districts spanning three regions Uganda. MiSeq, a next-generation...
Abstract Experimental error, especially through genotype misclassification and pedigree errors, negatively affects breeding decisions by creating ‘noise’ that compounds the genetic signals for selection. Unlike genotype-by-environment interactions, which different methods have been proposed to address, effect of due errors has not received much attention in most crops. We used two case studies sweetpotato, based on data from International Potato Center’s program estimate level phenotype...
Abstract Sweetpotato, Ipomoea batatas (L.), a key food security crop, is negatively impacted by heat, drought, and salinity stress. We exposed the orange-fleshed cultivar ‘Beauregard’ to 24 48 hours of heat salt stresses identify differentially expressed genes (DEGs) in leaves. Analysis revealed both shared unique sets up-regulated (650 for heat; 287 salt) down-regulated (1,249 793 DEGs suggesting common, yet stress-specific transcriptional responses these two abiotic stressors. Gene...
Abstract Quality assurance and control (QA/QC) is an essential element of a breeding program’s optimization efforts towards increased genetic gains. Due to auto-hexaploid genome complexity, low-cost marker platform for routine QA/QC in sweetpotato programs still unavailable. We used 662 parents the International Potato Center (CIP)’s global program spanning Peru, Uganda, Mozambique Ghana, develop low-density highly informative single nucleotide polymorphism (SNP) set be deployed QA/QC....
Abstract Being difficult to regenerate and maintain the seeds, oleaginous bottle gourd was investigated using nine agromorphological traits 31 amplified fragment length polymorphism (AFLP) markers. Specifically, study conducted determine intra-specific variability of a total 173 accessions, which were identified from five agro-ecological regions Côte d'Ivoire (Centre, East, North South). Then, genetic diversity relationships within accessions studied AFLP This characterization both...