ArticleHereditas2020
Genetic diversity of avocado from the southern highlands of Tanzania as revealed by microsatellite markers.
Article in Hereditas, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Uncovering the historic genetic diversity of Ugandan Robusta coffee germplasm: a foundation for core collection design.BMC plant biology · 2026Article
- Genomic Diversity of Avocado in the Morogoro Region and Southern Highlands of Tanzania.International journal of molecular sciences · 2026Article
- Genotyping and diversity analysis of local avocado landraces in La Palma, Canary Islands.Frontiers in plant science · 2025Article
- Article
- Improvements in the sequencing and assembly of plant genomes.GigaByte (Hong Kong, China) · 2021Article
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8 authors.
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Abstract
backgroundAvocado is an important cash crop in Tanzania, however its genetic diversity is not thoroughly investigated. This study was undertaken to explore the genetic diversity of avocado in the southern highlands using microsatellite markers. A total of 226 local avocado trees originating from seeds were sampled in eight districts of the Mbeya, Njombe and Songwe regions. Each district was considered as a population. The diversity at 10 microsatellite loci was investigated.
resultsA total of 167 alleles were detected across the 10 loci with an average of 16.7 ± 1.3 alleles per locus. The average expected and observed heterozygosity were 0.84 ± 0.02 and 0.65 ± 0.04, respectively. All but two loci showed a significant deviation from the Hardy-Weinberg principle. Analysis of molecular variance showed that about 6% of the variation was partitioned among the eight geographic populations. Population F
conclusionHigh diversity detected in the analysed avocado germplasm implies that this germplasm is a potentially valuable source of variable alleles that might be harnessed for genetic improvement of this crop in Tanzania. The mixing of avocado trees from different districts observed in the PCA and dendrogram points to strong gene flow among the avocado populations, which led to population admixture revealed in the STRUCTURE analysis. However, there is still significant differentiation among the tree populations from different districts that can be utilized in the avocado breeding program.
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