Radovi, Vol. 43 No. 1, 2008.
Izvorni znanstveni članak
GENETIC VARIABILITY OF SILVER FIR (ABIES ALBA MILL.) FROM THE CENTRAL PARTS OF BOSNIA AND HERZEGOVINA BY ANALYSIS OF BIOCHEMICAL MARKERS
Silvija Bilela
; GD Šume središnje Bosne, Donji Vakuf, Bosna i Hervcegovina
Dalibor Ballian
; Šumarski fakultet u Sarsajwevu, Sarajevo, Bosna i Hercegovina
Sažetak
The genetic variability in four natural populations of Silver fir (Abies alba Mill.), from
the central part of Bosnia and Herzegovina (localities Igman, Jahorina, Vla{i}, Prusa~ka rijeka)
was analysed in this research.
For the molecular analysis we used nine standardized enzyme systems with 17 gene loci
and 38 different alleles.
The molecular analysis shows differences between the populations, and the variability of
several gene loci and alleles is clinal in direction southeast to northwest.
The largest mean number of alleles was registered in the Prusa~ka rijeka population -
2.11, whereas the smallest number (1.94) were found in the Jahorina population. This population
is located near the local ski-center and is under direct human influence.
A relatively high value of heterozygosity, therefore high genetic variability, suggests that
these populations are more adaptive than those in central Europe. The gene locus Lap – B
with 0,55 in the most southern Jahorina population showed the highest average heterozigosity,
therefore probably preserving a major part of the original Balkan genes.
Genetic distances between the populations were the largest between the population of
Prusa~ka rijeka, on one side, and all other populations on the other. The largest genotype
distance was determined between Prusa~ka rijeka and Jahorina populations (0,0862). The
smallest genetic distance is 0,0694,,between populations of Jahorina and Igman. These results
are logical because Prusa~ka rijeka and Jahorina are geographically most distant from
each other, and Igman and Jahorina are the closest.
These results show that our populations did not loose much of their genetic variability
and adaptation potential. Therefore, in order to preserve the genetic resources it would be
necessary to establish a network of gene banks in situ and ex situ, required for the maintainance
of genetic differences of our populations.
Ključne riječi
variability; iso-enzyme; Silver fir (Abies alba Mill.)
Hrčak ID:
28028
URI
Datum izdavanja:
13.9.2008.
Posjeta: 1.626 *