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Genetic diversity and genome size variability in Linum austriacum (Lineaceae) populations
Institution:1. Department of Pathology and Parasitology, Institute of Biomedical Sciences, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil;2. Institute of Diagnostic and Prevention (IPD Laboratory), Varginha, Minas Gerais, Brazil;3. Centro de Investigación en Ciencias Odontológicas y Médicas, Facultad de Odontología, Universidad de Valparaíso, Valparaíso, Chile;4. Cancer and Translational Medicine Research Unit, Faculty of Medicine and Medical Research Center Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland;5. Institute of Oral and Maxillofacial Disease, University of Helsinki, and HUSLAB, Department of Pathology, Helsinki University Hospital, Helsinki, Finland;6. Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil;1. College of Health Sciences, Midwestern University, Glendale, AZ, USA;2. BARROW Neurological Institute at Phoenix Children''s Hospital, Phoenix, AZ, USA;3. Department of Child Health, University of Arizona College of Medicine, Phoenix, AZ, USA;4. Phoenix Veteran Affairs Healthcare System, Phoenix, AZ, USA;5. Interdisciplinary Program in Neuroscience, Arizona State University, Phoenix, AZ, USA
Abstract:Genetic diversity and genome size variability were studied in 16 geographical populations of Linum austriacum (Lineaceae). Genetic diversity parameters were determined in each population based on ISSR molecular markers. AMOVA test, Gst value and Hickory test revealed significant molecular difference among the studied populations. Mantel test showed correlation between genetic distance and geographical distance in these populations. NJ tree and NeighborNet network grouped the studied plant specimens in 3 major clusters. STRUCTURE analysis identified 12 allelic combinations in agreement with K-Means clustering result. These analyses revealed the presence of genetic variability both among and within studied population. The plant specimens of these geographical populations also differed significantly in their genome size.
Keywords:Genetic diversity  Genome size  ISSR  Linum  NeighborNet network
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