Daniel Ambachew Demissie

Daniel Ambachew Demissie
Tennessee State University | TSU · Department of Agricultural and Environmental Sciences

PhD

About

42
Publications
7,496
Reads
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357
Citations
Additional affiliations
December 2007 - June 2015
Southern Agricultural Research Institute (SARI)
Position
  • Managing Director
Education
September 2015 - November 2020
Tennessee State University
Field of study
  • Biotechnology

Publications

Publications (42)
Chapter
Inter-connectivity amongst breeding program is a required part of funding agencies’ projects these days but has not been well characterized by plant breeders themselves. Here we discuss the regional and global scales of inter-connectivity for common bean breeding programs as this is useful case study for administrators and government decision maker...
Article
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Common bean is one of the most important grain legumes for human diets but is produced on marginal lands with unfavorable soil conditions; among which Aluminum (Al) toxicity is a serious and widespread problem. Under low pH, stable forms of Al dissolve into the soil solution and as phytotoxic ions inhibit the growth and function of roots through in...
Article
Full-text available
The gene pool of Mesoamerican common beans (Phaseolus vulgaris L.) includes genotypes in the small-to-medium-size seeded dry beans, as well as some snap beans from hotter environments adapted to the Southeastern United States. However, the warm and humid climate of the Southeastern United States is conducive to diseases such as Common Bacterial Bli...
Article
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Key message Cooked bean flavor and texture vary within and across 20 Andean seed types; SNPs are significantly associated with total flavor, beany, earthy, starchy, bitter, seed-coat perception, and cotyledon texture. Abstract Common dry beans are a nutritious food recognized as a staple globally, but their consumption is low in the USA. Improving...
Article
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Global demand for juice of the purple passion fruit, Passiflora edulis f. edulis , is growing, making it a promising species for farmers to grow in the highland tropics, to which it is adapted. However, research centers and private companies have done little to produce new high-yielding varieties. The objective of the present study, therefore, was...
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Full-text available
Dry bean (Phaseolus vulgaris L.) is a nutrient‐dense food rich in proteins and minerals. Although a dietary staple in numerous regions, including Eastern and Southern Africa, greater utilization is limited by its long cooking time as compared with other staple foods. A fivefold genetic variability for cooking time has been identified for P. vulgari...
Article
Full-text available
We present raw sequence reads and genome assemblies derived from 17 accessions of the Ethiopian orphan crop plant enset (Ensete ventricosum (Welw.) Cheesman) using the Illumina HiSeq and MiSeq platforms. Also presented is a catalogue of singlenucleotide polymorphisms inferred from the sequence data at an average density of approximately one per kil...
Article
Full-text available
Recombination (R) rate and linkage disequilibrium (LD) analyses are the basis for plant breeding. These vary by breeding system, by generation of inbreeding or outcrossing and by region in the chromosome. Common bean (Phaseolus vulgaris L.) is a favored food legume with a small sequenced genome (514 Mb) and n = 11 chromosomes. The goal of this stud...
Data
Homology of legume TOG markers mapped in this study. (XLSX)
Data
Genetic map based on BAT93 x JaloEEP558 recombinant inbred line population for all 11 common bean (Pv) chromosomes showing distances (cM) to the left and markers to the right, respectively. (PDF)
Data
SNP marker location comparisons on linkage map distance (cM, y-axis) and physical distance (Mb, x-axis) across each of the eleven chromosomes of common bean (Pv) showing a dashed line at the position of the centromeres according to Schmutz et al. (2014). (PDF)
Data
Intra-chromosal decay of linake disequilibrium (r2) as a function of genetic distance (cM) for pairwise comparisons of the SNP markers on each chromosome (Pv). (PDF)
Data
Intra-chromosal decay of linake disequilibrium (r2) as a function of physical distance (Mb) for pairwise comparisons of the SNP markers at each chromosome (Pv). (PDF)
Data
Per chromosomal (Pv) relationship between D′and r2 for the SNP markers. (PDF)
Data
TOG marker names, map positions, and flanking sequences. (XLSX)
Data
Genotypes in the linkage disequilibrium (LD) germplasm panel including 71 Andean and 115 Mesoamerican genotypes from Blair et al. (2013). (DOCX)
Data
Distribution of minor-allele-frequency (MAF), also known as folded site frequency spectrum, for 768 single nucleotide polymorphism (SNP) markers used in this study (a) across genepools, (b) within the Andean genepool, and (c) within the Mesoamerican genepool. (PDF)
Data
Genome-wide distribution of nucleotide diversity (π) values for 768 single nucleotide polymorphism (SNP) markers used in this study (a) across genepools, (b) within the Andean genepool, and (c) within the Mesoamerican genepool. (PDF)
Article
Full-text available
Recombination (R) rate and linkage disequilibrium (LD) analyses are the basis for plant breeding. These vary by breeding system, by generation of inbreeding or outcrossing and by region in the chromosome. Common bean (Phaseolus vulgaris L.) is a favored food legume with a small sequenced genome (514 Mb) and n = 11 chromosomes. The goal of this stud...
Article
Full-text available
Enset (Ensete ventricosum (Welw.) Cheesman) is Ethiopia's most important root crop. A total of 387 accessions collected from nine different regions of Ethiopia were evaluated for 15 quantitative traits at Areka Agricultural Research Centre to determine the extent and pattern of distribution of morphological variation. The variations among the acces...
Article
Full-text available
Common beans are a warm-season, food legume cultivated in areas prone to water limitation throughout their growing season. This study assessed the magnitude and pattern of trait associations for a total of 202 common bean genotypes divided into panels of 81 Andean and 121 Mesoamerican gene pool accessions grown under contrasting treatments of well-...
Article
Full-text available
Cooking time and sensory quality are two important traits when selecting dry beans for consumption, but have largely been overlooked by breeders in favor of yield and other traits. Dry beans are an affordable, nutrient-rich food, but often require long cooking times, particularly without prior soaking. They also display a range of sensory character...
Article
Full-text available
Enset (Ensete ventricosum (Welw.) Cheesman)is a multipurpose crop used for food, fuel, housing materials, fencing and livestock feed. The major food types obtained from enset are kocho, bulla and amicho. Kocho is fermented starch obtained from decorticated (scraped) leaf sheaths and grated corms. Bulla is obtained by squeezing out the liquid contai...
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Full-text available
Drought stress linked with climate change is one of the major constraints faced by common bean farmers in Africa and elsewhere. Mitigating this constraint requires the selection of resilient varieties that withstand drought threats to common bean production. This study assessed the drought response of 64 small red seeded genotypes of common beans g...
Article
Full-text available
Understanding functional relations among plant traits and their modulation by growing conditions is imperative in designing selection strategies for breeding programs. This study assessed trait relationships among 196 common bean genotypes exposed to stresses for drought and field infestation of bean fly or bean stem maggot (BSM). The study was car...
Article
Full-text available
This study was initiated to explore farmers ' strategy on choice of enset cultivar mix and features pertaining to farm cultivar diversity. The survey was undertaken on eight geographical zones in southern Ethiopia. Enset is an important food crop, after cereals and pulses, with coverage of 25% of arable land in the region. Primary data were collect...
Article
Full-text available
A Genotype x Environment (GxE) interaction study was conducted in Southern Ethiopia in 2007 and 2008 using 16 faba bean genotypes in a randomized complete block design with three replications. The objectives of the study were to determine the magnitude of G x E interaction and to identify high yielding and stable or specifically adapted genotypes f...

Questions

Question (1)
Question
What is the minimum acceptable broad-sense heritability value of a quantitative trait to decide if the trait is suitable for GWAS analysis or not?

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Projects

Projects (5)
Archived project
Project
MUSA is a project funded by the European Union, call SFS-11-2016. It will holistically encompass novel IPM methods based on microbial consortia and available banana (Musa spp.) and enset (Ensete ventricosum) germplasm, including newly developed élite hybrids. The Consortium will additionally study phenotypic and molecular reactions of the plants to various biotic stresses. The main outcome of this Project will be to achieve a sustainable intensification of banana and enset crops, and to improve their resilience towards pathogens/pests (nematodes, Panama disease and weevils). This goal will be achieved through the identification, development and implementation of locally adapted IPM strategies based on beneficial microorganisms and tested germplasm, and through the generation of new knowledge and bio-based information in three targeted regions (Sub Sahara Africa, Central America, Canary Islands). Partners will collect, identify and characterize suitable beneficial microorganisms, screen, test and evaluate in the field their interactions with selected banana lines and (via transcriptomic analyses) identify the main genes involved in driving resistant/tolerant or succumbent/susceptible responses. Beneficial microbes include endophytes and biocontrol agents (EBCAs) that will be integrated with tested plant germplasm to develop information-based IPM strategies. Germplasm to test will include resistant/tolerant lines available from the International Institute of Tropical Agriculture (IITA), an international non-profit research organisation based in SSA, partner in MUSA, and other sources. Appropriate dissemination, communication and exploitation actions including formation and technology transfer will be put in place with further stakeholder partners of the private sector (industries, producers), to ensure persistence of the Project impact after completion. This project has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement No 727624