Assessment of genetic differentiation among relict populations of Calophyllum brasiliense Camb. (Calophyllaceae) from Northeast Argentina

PERCUOCO, CECILIA; BICH, GUSTAVO ANGEL; TALAVERA, LILIANA; CARDOZO, ALICIA; RODRIGUEZ, MANUELA; GONZALEZ, NAIKE; SOROL, CLAUDIA; CRIVELLO, FERNANDO; CRISCI, JORGE; ARGUELLES, CARINA

Journal of Biodiversity and Environmental Sciences

INNSPUB

Año: 2014 vol. 5 p. 87 - 98

2220-6663

Calophyllum brasiliense is a tropical tree that grows exclusively in riparian forest and in almost permanently flooded areas. In Argentina two small populations located within riparian forest from Misiones and Corrientes Provinces have been recently identified. These riparian communities have been extensively fragmented and are at risk of local extinction due to flooding caused by a nearby dam and other anthropogenic changes that threaten this habitat. Genetic characterization using information from 56 RAPD loci revealed low expected heterozygosity in both populations (He = 0.273). Most genetic variability was distributed within populations, and a significant ϕST statistic value (0.283, p