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Short introns indicate a compact genome in sponges (CROSBI ID 559367)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | domaća recenzija

Štifanić, Mauro ; Batel, Renato Short introns indicate a compact genome in sponges // 9. Croatian Biological Congress Proceeding of abstracts / Besendorfer, Višnja ; Klobučar, Goran, I, V (ur.). Zagreb: Hrvatsko biološko društvo, 2006. str. 64-65

Podaci o odgovornosti

Štifanić, Mauro ; Batel, Renato

engleski

Short introns indicate a compact genome in sponges

Sponges are among the oldest multicellular animals and, as such, are very interesting from an evolutionary point of view. Current knowledge of genome size and organisation in sponges is contradictory. The aim of this study was a statistical exon/intron size analysis in sponges, in order to conclude about their genome organisation. The NCBI nucleotide sequence database was searched for Poriferan protein-coding genomic sequences longer than 1000 nucleotides, excluding mitochondrial genes and patents. The retreaved sequences were then used to search for corresponding cDNAs using the BLASTN algorithm. We finally obtained 18 cDNA sequences that matched to 15 genomic clones. Here we present a statistical exon/intron size analysis of all sponge genes with both the CDS and the genomic sequences deposited in the NCBI sequence database at the time of writing. The analysis was based on all complete exons contained within the CDSs and all introns between the start and stop codons. The average size of 78 exons, and 96 introns is 146 nt with a median of 119, and 259 nt with a median of 181 respectively. The regions between the start and stop codons of the analysed genes contain a total of 19143 coding and 24822 noncoding nucleotides making a very high "CDSs size" vs. "introns contained within" ratio of 0.77. Based on the positive correlation of intron size and genome size, we conclude that sponges have a compact genome.

intron; gene; genome; porifera; sponges

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Podaci o prilogu

64-65.

2006.

nije evidentirano

objavljeno

953-6241-06-4

Podaci o matičnoj publikaciji

9. Croatian Biological Congress Proceeding of abstracts

Besendorfer, Višnja ; Klobučar, Goran, I, V

Zagreb: Hrvatsko biološko društvo

Podaci o skupu

9. Croatian Biological Congress

predavanje

23.09.2006-29.09.2006

Rovinj, Hrvatska

Povezanost rada

Geologija, Biologija