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Pregled bibliografske jedinice broj: 813635

The puzzling character of repetitive DNA in Phodopus genomes (Cricetidae, Rodentia)


Paço, Ana; Adega, Filomena; Meštrović, Nevenka; Plohl, Miroslav; Chaves, Raquel
The puzzling character of repetitive DNA in Phodopus genomes (Cricetidae, Rodentia) // Chromosome Research, 23 (2015), 427-440 doi:10.1007/s10577-015-9481-9 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 813635 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
The puzzling character of repetitive DNA in Phodopus genomes (Cricetidae, Rodentia)

Autori
Paço, Ana ; Adega, Filomena ; Meštrović, Nevenka ; Plohl, Miroslav ; Chaves, Raquel

Izvornik
Chromosome Research (0967-3849) 23 (2015); 427-440

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Rodentia ; Phodopus ; Repetitive sequences ; Chromosomal evolution

Sažetak
Three novel repetitive DNA sequences are described, presenting a similar heterochromatic chromosomal location in two hamster species: Phodopus roborovskii and Phodopus sungorus (Cricetidae, Rodentia). Namely, two species-specific repetitive sequences (PROsat from P. roborovskii and PSUchr1sat from P. sungorus) surrounding a third one(PsatDNA), that is shared by both hamster genomes. Fiber-FISH analyses revealed that PROsat intermingles with PsatDNA in P. roborovskii and PSUchr1sat intermingles with PsatDNA in P. sungorus. A model explaining the evolution of this intricate chromosomal distribution is proposed, which can explain better the evolution of these very derivative genomes (in comparison to the ancestral Muroidea). The most plausible evolutionary scenario seems to be the expansion of a number of repeats into other’s domain, most probably resulting in its intermingling, followed by the subsequent spread of these complex repeats from a single chromosomal location to other chromosomes. Evidences of an association between repetitive sequences and the chromosome evolution process were observed, namely for PROsat. Most probably, the evolutionary breakpoints that shaped PRO and PSU chromosomes (pericentric inversions and fusions) occurred within the boundaries of PROsat blocks in the ancestor. The repeats high diversity at the heterochromatic regions of Phodopus chromosomes, together with its complex organization, suggests that these species are important models for evolutionary studies, namely in the investigation of a possible relationship between repetitive sequences and the occurrence of chromosomal rearrangements and consequently, in genome evolution.

Izvorni jezik
Engleski

Znanstvena područja
Biologija



POVEZANOST RADA


Projekti:
HRZZ-IP-2014-09-3183 - Centromerna genomika beskralježnjaka (CENGEN) (Plohl, Miroslav, HRZZ - 2014-09) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Citiraj ovu publikaciju

Paço, Ana; Adega, Filomena; Meštrović, Nevenka; Plohl, Miroslav; Chaves, Raquel
The puzzling character of repetitive DNA in Phodopus genomes (Cricetidae, Rodentia) // Chromosome Research, 23 (2015), 427-440 doi:10.1007/s10577-015-9481-9 (međunarodna recenzija, članak, znanstveni)
Paço, A., Adega, F., Meštrović, N., Plohl, M. & Chaves, R. (2015) The puzzling character of repetitive DNA in Phodopus genomes (Cricetidae, Rodentia). Chromosome Research, 23, 427-440 doi:10.1007/s10577-015-9481-9.
@article{article, year = {2015}, pages = {427-440}, DOI = {10.1007/s10577-015-9481-9}, keywords = {Rodentia, Phodopus, Repetitive sequences, Chromosomal evolution}, journal = {Chromosome Research}, doi = {10.1007/s10577-015-9481-9}, volume = {23}, issn = {0967-3849}, title = {The puzzling character of repetitive DNA in Phodopus genomes (Cricetidae, Rodentia)}, keyword = {Rodentia, Phodopus, Repetitive sequences, Chromosomal evolution} }
@article{article, year = {2015}, pages = {427-440}, DOI = {10.1007/s10577-015-9481-9}, keywords = {Rodentia, Phodopus, Repetitive sequences, Chromosomal evolution}, journal = {Chromosome Research}, doi = {10.1007/s10577-015-9481-9}, volume = {23}, issn = {0967-3849}, title = {The puzzling character of repetitive DNA in Phodopus genomes (Cricetidae, Rodentia)}, keyword = {Rodentia, Phodopus, Repetitive sequences, Chromosomal evolution} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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