nucleotide sequences derived from the genome of type retroviruses HIV-1, HIV-2 and SIV, and applications especially for amplification of sequences pol these genomes of retroviruses and for the invitro diagnosis of infections due to these viruses.

Oligonucleotide 15 to 30 nucleotides, characterized in that its sequence consists of: i) a specific sequence of the gel pol, and capable of hybridizing to a temperature of 60 n 1 ° C with genomes of the viruses HIV-1 Bru, HIV-1 Mal , HIV-1 Eli, HIV-2 Rod and SIV Mac; or ii) a sequence complementary to a sequence as defined in i).