Naslov
Primarna struktura i strukturalna obilježja intergenske razmaknice između 26S i 18S rRNA gena u vrste Quercus petraea.
(The nucleotide sequence and structural features of rDNA spacer region between 26S and 18S rRNA genes in Quercus petraea.)

Autori
Horvat, T., Biruš, I., Bauer, N., Papeš, D., Zoldoš, V.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Zbornik sažetaka / Besendorfer, Višnja ; Klobučar, Goran Igor Vinko - Zagreb : Hrvatsko biološko društvo, 2006, 61 - 62

Skup
9. Hrvatski biološki kongres s međunarodnim sudjelovanjem

Mjesto i datum
Rovinj, Hrvatska, 23.09.2006. - 29.09.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
intergenska razmaknica; 18S-5.8S-26S rDNA; Quercus petraea
(intergenic spacer; 18S-5.8S-26S rDNA; Quercus petraea)

Sažetak
Intergenic spacer region (IGS) between 25S and 18S rRNA genes is evolutionary more unstable than rRNA coding regions in eukaryotic DNA, though it contains several structural elements involved in control and regulation of rRNA transcription. One of these elements are enhancers, of which copy number varies usually between the spacers of different rDNA clusters in the same genome, creating the spacer length variants (slvs). Copy number of enhancer elements and transcriptional activity of individual rRNA genes in an rRNA cluster are positively correlated. In Q. petrea there are at least 5 different slvs of around 560, 1200, 1400, 2000 and 3500 pb in length. After determination of complete nucleotide sequence of dominant slvs in the genome, detailed structured analysis was performed in order to reveal: (i) the position of gene promoter and spacer promoters, (ii) the main repeat element containing enhancer elements.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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