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- W4385381802 abstract "Abstract Enset ( Ensete ventricosum (Welw.) Cheesman) is a multipurpose, drought-tolerant and a key food security crop, which is the staple food for peoples in the south and southwestern parts of Ethiopia. In this study, we characterized genetic diversity, population structure and selection signatures in 226 cultivated and 10 wild enset accessions collected from diverse enset growing regions of Ethiopia using 3505 high-quality single nucleotide polymorphism (SNP) markers obtained from double-digest restriction-site associated DNA (ddRAD) sequences. The population structure and cluster analyses clearly distinguished between cultivated and wild enset. The analysis of molecular variance (AMOVA) revealed higher levels of genetic diversity within populations and regions (91.2 and 92.4%, respectively) than between populations and regions (8.8 and 7.6%, respectively). This shows that the region of origin and environmental heterogeneity have little influence on the genetic diversity. However, the genetic differentiation between regions was moderate to large (FST = 0.06–0.17). The genetic structure of enset was mainly shaped by eco-geographic factors, mode of propagation and cultivation status. Six genes potentially involved in sexual reproduction and flowering signalling, which are key processes underlying domestication and adaptation, were under positive selection demonstrating that sexual reproduction plays an important role in shaping enset diversity. A lot of unexplored diversity is available for improving enset in Ethiopia, with patterns of diversity consistent with divergent selection on adaptive traits. This diversity also shows potential for introducing enset as a more food secure crop for the food insecure regions in the dry north of Ethiopia." @default.
- W4385381802 created "2023-07-30" @default.
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- W4385381802 date "2023-07-29" @default.
- W4385381802 modified "2023-10-16" @default.
- W4385381802 title "Genetic diversity, population structure and selection signatures in Enset (Ensete ventricosum, (Welw.) Cheesman), an underutilized and key food security crop in Ethiopia" @default.
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- W4385381802 doi "https://doi.org/10.1007/s10722-023-01683-9" @default.
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