Violet Akech

ORCID: 0000-0003-2330-0682
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About
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Research Areas
  • Banana Cultivation and Research
  • Plant Pathogenic Bacteria Studies
  • Pineapple and bromelain studies
  • Genetics and Plant Breeding
  • Genetic and phenotypic traits in livestock
  • Genetic diversity and population structure
  • Botanical Studies and Applications
  • Plant Pathogens and Fungal Diseases
  • Cassava research and cyanide
  • Rice Cultivation and Yield Improvement
  • Leaf Properties and Growth Measurement
  • Biomedical Text Mining and Ontologies
  • Genetic Mapping and Diversity in Plants and Animals

International Institute of Tropical Agriculture
2018-2025

Swedish University of Agricultural Sciences
2024

International Institute of Tropical Agriculture
2022

East African highland bananas (EAHB) were regarded as sterile. Their screening for female fertility with "Calcutta 4" male parent revealed that 37 EAHB fertile. This was the foundation establishment of crossbreeding programs by International Institute Tropical Agriculture (IITA) and National Agricultural Research Organization (NARO) in Uganda mid-1990s. The aim this study to assess progress efficiency breeding program at IITA, Sendusu Uganda. Data on pollinations, seeds generated germinated,...

10.3389/fpls.2019.00081 article EN cc-by Frontiers in Plant Science 2019-02-05

Abstract Modern breeding methods integrate next-generation sequencing and phenomics to identify plants with the best characteristics greatest genetic merit for use as parents in subsequent cycles ultimately create improved cultivars able sustain high adoption rates by farmers. This data-driven approach hinges on strong foundations data management, quality control, analytics. Of crucial importance is a central database (1) track materials, (2) store experimental evaluations, (3) record...

10.1093/g3journal/jkac078 article EN cc-by G3 Genes Genomes Genetics 2022-04-06

Banana Xanthomonas wilt, caused by vasicola pv. musacearum (Xvm), is a devastating disease that results in total yield loss of affected plants. Resistance to the limited Musa acuminata, but it has been identified so far zebrina subspecies. This study markers associated with tolerance Xvm Monyet, tetraploid banana from subspecies which was be partially resistant bacterium. We used triploid progeny 135 F1 hybrids resulting cross between Monyet (Xvm resistant) and Kokopo (diploid susceptible)....

10.3390/horticulturae10010087 article EN cc-by Horticulturae 2024-01-16

Improving the efficiency of selection in conventional crossbreeding is a major priority banana ( spp.) breeding. Routine application classical marker assisted (MAS) lagging due to limitations MAS tools. Genomic (GS) based on genomic prediction models can address some MAS, but use GS has not been reported date. The aim this study was evaluate predictive ability six for 15 traits multi-ploidy training population. population consisted 307 genotypes phenotyped under low and high input field...

10.3835/plantgenome2017.10.0090 article EN cc-by The Plant Genome 2018-03-02

Abstract Ontologies are widely used in databases to standardize data, improving data quality, integration, and ease of comparison. Within ontologies tailored diverse use cases, post-composing user-defined terms reconciles the demands for standardization on one hand flexibility other. In many instances Breedbase, a digital ecosystem plant breeding designed genomic selection, goal is capture phenotypic using highly curated rigorous crop ontologies, while adapting specific requirements breeders...

10.1093/database/baaf020 article EN cc-by Database 2025-01-01

The major quantitative trait loci associated with bunch weight and its component traits in the East African highland banana-breeding population are located on chromosome 3. Bunch increase is one of objectives banana improvement programs, but little known about controlling traits. Here we report for first time some genomic as revealed through a genome-wide association study. A 307 genotypes varying ploidy was phenotyped three locations under different environmental conditions, data were...

10.1007/s00122-019-03425-x article EN cc-by Theoretical and Applied Genetics 2019-09-16

Bananas (Musa spp.) are one of the most highly consumed fruits globally, grown in tropical and sub-tropical regions. We evaluated 856 Musa accessions from breeding programs International Institute Tropical Agriculture Nigeria, Tanzania, Uganda; National Agricultural Research Organization Brazilian Corporation (Embrapa); Centre for Banana India. Accessions vitro gene bank at Transit Belgium were included to provide a baseline available global diversity. A total 16,903 informative single...

10.1002/tpg2.20497 article EN cc-by-nc-nd The Plant Genome 2024-07-29

Abstract Background Heterobeltiosis is the phenomenon when hybrid’s performance superior to its best performing parent. Banana ( Musa spp. AAA) breeding a tedious, time-consuming process, taking up two decades develop consumer acceptable hybrid. Exploiting heterobeltiosis in banana will help select material with high complementarity, thus increasing efficiency. The aim of this study was therefore determine and document level bunch weight plant stature East African highland bananas, order...

10.1186/s12870-020-02667-y article EN cc-by BMC Plant Biology 2020-10-27

Abstract East African highland bananas ( Musa spp. AAA group) are an important staple in the Great Lakes region of Africa. Their production has declined due to pests and diseases. Breeding for host plant resistance is a sustainable option addressing this challenge. Understanding relationships between growth parameters bunch weight (i.e., yield) crucial guide breeding efforts crop. We investigated cause-effect relationships, through path analysis, banana derived hybrids, their parents...

10.1007/s10681-021-02920-x article EN cc-by Euphytica 2021-09-24

The first step toward marker-assisted selection is linking the phenotypes to molecular markers through quantitative trait loci (QTL) analysis. While process straightforward in self-pollinating diploid (2x) species, QTL analysis polyploids requires unconventional methods. In this study, we have identified associated with weevil Cosmopolites sordidus (Germar) resistance bananas using 138 triploid (2n = 3x) hybrids derived from a cross between tetraploid "Monyet" 4x) and 2x "Kokopo" 2x) banana...

10.3389/fpls.2021.753241 article EN cc-by Frontiers in Plant Science 2021-11-29

Abstract Background: Heterobeltiosis is the phenomenon when hybrid’s performance superior to its best performing parent. Banana ( Musa spp. AAA) breeding a tedious, time-consuming process, taking up two decades develop consumer acceptable hybrid. Exploiting heterobeltiosis in banana will contribute selecting material with high compatibility, thus increasing efficiency. The aim of this study was therefore determine and document level bunch weight plant stature East African highland bananas,...

10.21203/rs.3.rs-35530/v1 preprint EN cc-by Research Square (Research Square) 2020-06-30

Abstract Background: Heterobeltiosis is the phenomenon when hybrid’s performance superior to its best performing parent. Banana ( Musa spp. AAA) breeding a tedious, time-consuming process, taking up two decades develop consumer acceptable hybrid. Exploiting heterobeltiosis in banana will help select material with high complementarity, thus increasing efficiency. The aim of this study was therefore determine and document level bunch weight plant stature East African highland bananas, order...

10.21203/rs.3.rs-35530/v2 preprint EN cc-by Research Square (Research Square) 2020-08-14
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