Genetic diversity and fragmentation of Aspidosperma quebracho-blanco (Apocynaceae) natural habitats, conservation issues in Chaco forest and savanna biomes
نویسندگان
چکیده
The present study analyses the first data on genetic diversity of A. quebracho-blanco with fragmentation its natural habitat, supporting conservation strategies such as definition priority areas for conservation. DNA was extracted from 25 individuals five populations Argentina, Paraguay, and Brazil. Six ISSR primers were used to characterize structure this species. genotypes grouped according a distance matrix, considering indices Nei (He), Shannon (H’), polymorphic information content (PIC), heterozygosis (H). showed an average that ranged 0.09 0.15 index 0.19 0.31 index; Mantel test not significant (r2 = 0.25, P 0.106). results obteined sampled reveal units are indispensable conserving species resources. In addition, it would be essential construct germplasm bank Cordoba (Argentina) population, which is population high in region lower compared other regions evaluated, ensure quebracho-blanco.
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ژورنال
عنوان ژورنال: Darwiniana
سال: 2021
ISSN: ['0011-6793', '1850-1699']
DOI: https://doi.org/10.14522/darwiniana.2021.91.932