The nucleotide sequence and structural features of rDNA spacer region between 25S and 18S rRNA genes in Quercus petraea (CROSBI ID 575464)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | domaća recenzija
Podaci o odgovornosti
Horvat, Tomislav ; Biruš, Ivan ; Bauer, Nataša ; Papeš, Dražena ; Zoldoš, Vlatka
engleski
The nucleotide sequence and structural features of rDNA spacer region between 25S and 18S rRNA genes in Quercus petraea
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.
ribosomal genes; IGS; spacer length variants
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Podaci o prilogu
61-61.
2006.
objavljeno
Podaci o matičnoj publikaciji
Proceeding of abstracts of the 9th Croatian Biological Congress
Besendorfer, Višnja ; Klobučar, Goran
Zagreb: Hrvatsko biološko društvo
953-6241-06-4
Podaci o skupu
9th Croatian Biological Congress with international participation
predavanje
23.09.2006-29.09.2006
Rovinj, Hrvatska