Počet záznamů: 1
Intraspecific variation in mitochondrial genome sequence, structure, and gene content in Silene vulgaris, an angiosperm with pervasive cytoplasmic male sterility
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SYSNO ASEP 0384239 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Intraspecific variation in mitochondrial genome sequence, structure, and gene content in Silene vulgaris, an angiosperm with pervasive cytoplasmic male sterility Tvůrce(i) Sloan, D.B. (US)
Müller, Karel (UEB-Q) RID, ORCID
McCauley, D. (US)
Taylor, D.R. (US)
Štorchová, Helena (UEB-Q) RID, ORCIDZdroj.dok. New Phytologist - ISSN 0028-646X
Roč. 196, č. 4 (2012), s. 1228-1239Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova cytoplasmic male sterility (CMS) ; gynodioecy ; intracellular gene transfer Vědní obor RIV EB - Genetika a molekulární biologie CEP GA521/09/0261 GA ČR - Grantová agentura ČR LC06004 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy ME09035 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000310676400028 DOI 10.1111/j.1469-8137.2012.04340.x Anotace In angiosperms, mitochondrial-encoded genes can cause cytoplasmic male sterility (CMS), resulting in the coexistence of female and hermaphroditic individuals (gynodioecy). We compared four complete mitochondrial genomes from the gynodioecious species Silene vulgaris and found unprecedented amounts of intraspecific diversity for plant mitochondrial DNA (mtDNA). Remarkably, only about half of overall sequence content is shared between any pair of genomes. The four mtDNAs range in size from 361 to 429 kb and differ in gene complement, with rpl5 and rps13 being intact in some genomes but absent or pseudogenized in others. The genomes exhibit essentially no conservation of synteny and are highly repetitive, with evidence of reciprocal recombination occurring even across short repeats (< 250 bp). Some mitochondrial genes exhibit atypically high degrees of nucleotide polymorphism, while others are invariant. The genomes also contain a variable number of small autonomously mapping chromosomes, which have only recently been identified in angiosperm mtDNA. Southern blot analysis of one of these chromosomes indicated a complex in vivo structure consisting of both monomeric circles and multimeric forms. We conclude that S. vulgaris harbors an unusually large degree of variation in mtDNA sequence and structure and discuss the extent to which this variation might be related to CMS. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2013
Počet záznamů: 1