Fingerprinting and analysis of genetic diversity of litchi (Litchi chinensis Sonn.) accessions from different germplasm collections using microsatellite markers
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29 August 2022
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Fingerprinting and analysis of genetic diversity of litchi (Litchi chinensis Sonn.) accessions from different germplasm collections using microsatellite markers
Litchi (Litchi chinensis Sonn.) is a fruit crop with a clear niche for expansion in countries with subtropical climates. One of the main limitations for breeding purposes and optimum germplasm management in this species is the confusion in cultivar denomination among different producing countries and germplasm collections worldwide. Litchi cultivar identification is still mainly based on morphological characters, and homonymies and synonymies are very frequent. To address this gap, a molecular study was conducted to characterize litchi accessions from two of the main litchi-producing regions for the export market, Mauritius and Réunion, and to compare them to those obtained from litchi cultivars from different origins conserved in a germplasm collection in Spain. Eleven simple sequence repeat (SSR) loci were used to characterize molecular polymorphisms among 88 litchi accessions conserved in Mauritius …