IMBIV   05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
artículos
Título:
Genetic variability in Apurimacia dolichocarpa (Fabaceae), a narrow endemic species of Córdoba Hills, Argentina
Autor/es:
GROSSI, M., JULIO, N., GARDENAL, N, DI RIENZO, J & FUNES, G.
Revista:
ANNALES BOTANICI FENNICI
Editorial:
FINNISH ZOOLOGICAL BOTANICAL PUBLISHING BOARD
Referencias:
Lugar: Helsinki; Año: 2011 vol. 48 p. 21 - 28
ISSN:
0003-3847
Resumen:
Apurimacia dolichocarpa is a narrow endemic species, restricted to Córdoba Hills, Argentina. At present only two populations are known. In order to analyse the level and distribution of the genetic variability in the species, allele frequencies in sixteen loci coding for enzymes were estimated from starch gel electrophoresis patterns. The levels of genetic diversity (P99%=56.25; A=1.81; He=0.1125) are higher than the mean for endemic species reported in the literature. The low level of genetic differentiation between the two populations( = 0.04) would be the result of a recent fragmentation of an ancestral panmictic population. A. dolichocarpa does not appear as threatened by genetic factors, given that its populations preserve a moderate level of allozymic polymorphism. In this context, the artificial establishment of intermediate populations would facilitate polen dispersal, a strategy that could favor the maintenance of the polymorphism levels in the species.