Publications by authors named "R Asiedu"

Article Synopsis
  • Maintaining genetic purity and accurate identification of clones is crucial in breeding programs, leading to the development of KASP-based SNP markers for efficient track of genetic information.* -
  • The study involved creating ultra-low-density SNP markers from a large dataset of 173,675 SNPs sourced from 333 white Guinea yam genotypes, which were narrowed down to 99 validated markers.* -
  • These markers proved effective in distinguishing between different yam species, identifying duplicates, and predicting parentage in yam breeding, marking a significant advancement in genetic analysis.*
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Developing novel white Guinea yam () varieties is constrained by the sparse, erratic, and irregular flowering behavior of most genotypes. We tested the effectiveness of nine agronomic and hormonal treatments to enhance flowering on under field conditions. Genotypes responded differently to flower-inducing treatments (<0.

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Article Synopsis
  • - This study investigates the genetic influences on the sensory and textural qualities of boiled and pounded yam, focusing on white Guinea yam, to enhance its acceptability for consumption.
  • - Researchers conducted a genome-wide association study (GWAS) involving 184 yam genotypes and identified 13 significant single-nucleotide polymorphism (SNP) markers associated with quality traits, explaining a portion of the variation in these qualities.
  • - Key genetic regions on chromosomes 7 and 15 were linked to quality attributes, with several genes related to carbohydrate metabolism identified, laying the groundwork for future breeding efforts using marker-assisted selection in white Guinea yam.
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Introduction: Landraces represent a significant gene pool of African cultivated white Guinea yam diversity. They could, therefore, serve as a potential donor of important traits such as resilience to stresses as well as food quality attributes that may be useful in modern yam breeding. This study assessed the pattern of genetic variability, quantitative trait loci (QTLs), alleles, and genetic merits of landraces, which could be exploited in breeding for more sustainable yam production in Africa.

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Choosing superior parents with complementary trait values for hybridization and selecting variants with desired product profiles to release as a new cultivar are important breeding activities to progress genetic improvement in crops. This study assessed the genetic potential of 36 parental lines of white Guinea yam () genotypes using multi-trait index-based factor analysis and ideotype design (FAI-BLUP). The experiment utilized 36 white yam genotypes laid out in a 6 × 6 triple lattice design with three replications and phenotyped for 18 agronomic and food quality traits.

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