Rezumatul tezei de doctorat - USAMV Cluj-Napoca

150 bp. The electrophoretic profiles are belonging to Saprolegnia ferax species, ulterior
sequenced. In the fishpond 4, the fragment length differs as it follows: the first fragment has
500 bp, the second one has about 210-220 bp, and the third one has 150 bp, involving a
polymorphism of another fungal species (Achlya bisexualis).
In the case of the fungal species from Saprolegniaceae family, collected from Cefa
fishery, Bihor county, with 10 fishponds, in the fishponds 1,2,4,5,6,7 and 9 , the 3 fragments
have the following lengths: the first fragment 400 bp, the second fragment 200 bp and the
third fragment between 130 and 150 bp. Those polymorphisms are belonging to Saprolegnia
ferax species. In the fishponds 3,8 and 10, the fragments have different lengths, the
sequencing confirming the presence of Achlya bisexualis species. The first fragment is
visualized more clearly, having about 450 bp. At the samples originating from the fishponds
8 and 10, it is observed an extra fragment the second one, of 250 bp, the third one having
200 bp and the fourth one about 130 bp, have the same length with the second and third
fragments from the other fishpond samples.
At Ineu fishery, Arad county, the fragments of all the fungal samples from
Saprolegniaceae family, collected from 7 fishponds analyzed, had the same lengths: the first
one had 400 bp, the second one 200 bp, and the third one between 130 and 150 bp. The
ulterior sequencing analyses confirmed the presence of Saprolegnia ferax species, in this
location fishponds.
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