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  • Title: Microsatellite marker development for the tetraploid Veronica aragonensis (Plantaginaceae) using next-generation sequencing and high-resolution melting analyses.
    Author: Padilla-García N, Malvar-Ferreras T, Lambourdière J, Martínez-Ortega MM, Machon N.
    Journal: Appl Plant Sci; 2018 May; 6(5):e01154. PubMed ID: 30131896.
    Abstract:
    PREMISE OF THE STUDY: The tetraploid Veronica aragonensis (Plantaginaceae) is a narrow endemic to the Iberian Peninsula. Specific microsatellite markers were developed to investigate genetic structure and diversity. METHODS AND RESULTS: A total of 15 polymorphic markers were characterized on three populations of V. aragonensis, using a microsatellite-enriched library on an Ion Torrent sequencer and high-resolution melting (HRM) analyses to rapidly discard nonreliable, multicopy, and/or monomorphic loci. Allele number per locus ranged from one to five, and levels of observed heterozygosity per population varied from 0.142 ± 0.301 to 0.281 ± 0.369. Most primers also amplified in the closely related species V. rosea and in three subspecies of V. tenuifolia. CONCLUSIONS: The species-specific microsatellite markers developed here represent an essential tool to provide genetic information on the population level for V. aragonensis. The low levels of variation detected highlight the importance of continued efforts to improve conservation of the species.
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