2012
Genomic diversity in two related plant species with and without sex chromosomes – Silene latifolia and S. vulgaris.
CEGAN, R, Boris VYSKOT, Eduard KEJNOVSKÝ, Zdeněk KUBÁT, Hana BLAVET et. al.Základní údaje
Originální název
Genomic diversity in two related plant species with and without sex chromosomes – Silene latifolia and S. vulgaris.
Autoři
CEGAN, R, Boris VYSKOT, Eduard KEJNOVSKÝ, Zdeněk KUBÁT, Hana BLAVET, Jan SAFAR, Jaroslav DOLEŽEL, N BLAVET a Roman HOBZA
Vydání
PLoS Biology, USA, PUBLIC LIBRARY SCIENCE, 2012, 1544-9173
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 12.472 v roce 2010
Organizační jednotka
Středoevropský technologický institut
UT WoS
000303003500026
Klíčová slova anglicky
Y-CHROMOSOME; DNA-SEQUENCES; TRANSPOSABLE ELEMENTS; LTR RETROTRANSPOSONS; REPETITIVE DNA; SIZE; EVOLUTION; ACCUMULATION; SYSTEM; GENE
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 9. 4. 2013 09:52, Mgr. Nikola Kostlánová, Ph.D.
Anotace
V originále
We analyzed differences in the number and distribution of major repetitive DNA elements in two closely related species, Silene latifolia and S. vulgaris. Both species are diploid and possess the same chromosome number (2n = 24), but differ in their genome size and mode of reproduction. The dioecious S. latifolia (1C = 2.70 pg DNA) possesses sex chromosomes and its genome is 2.5x larger than that of the gynodioecious S. vulgaris (1C = 1.13 pg DNA), which does not possess sex chromosomes. We discovered that the genome of S. latifolia is larger mainly due to the expansion of Ogre retrotransposons. Surprisingly, the centromeric STAR-C and TR1 tandem repeats were found to be more abundant in S. vulgaris, the species with the smaller genome. We further examined the distribution of major repetitive sequences in related species in the Caryophyllaceae family. The results of FISH (fluorescence in situ hybridization) on mitotic chromosomes with the Retand element indicate that large rearrangements occurred during the evolution of the Caryophyllaceae family.