IDENTIFYING PRIORITY AREAS FOR CONSERVATION OF Aspidosperma quebracho-blanco Schltdl. IN ARGENTINE DRY CHACO

CIUFFO, GM; TORRES BASSO M. B; CIUFFO, LEC

Mero, SL

Congreso; XXXV Reunión Científica Anual de la Sociedad de Biología de Cuyo; 2017

Soc Biol. Cuyo

Little is known about the population genetic structure of A. quebracho-blanco. Know the effects of spatial isolation on genetic diversity and gene flow is very important for providing recommendations for in situ and ex situ conservation efforts. We assessment variability and differentiation genetic in five populations of Dry Chaco: Quebracho de la Legua (QL), Bajo de Véliz (BV), Chancaní (C), INTA La María (SG) and San Jerónimo (SJ) by RAPDs molecular markers. At a population level, percentage of polymorphism (P), varied between 48.9% in SG to 65.4% in QL and SJ. The highest values of Nei?s genetic diversity were observed for QL and SJ (0.183 and 0.214 respectively). Shannon-Weaver evidence a 75% and 25% of genetic diversity intra and inter-population respectively. The analysis of RAPD patterns using AMOVA showed that 63% of intrapopulation variability and 37% the interpopulation variability. Geneticdifferentiation between populations estimated by Φ (0.372, p