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Selfish supernumerary chromosome reveals its origin as a mosaic of host genome and organellar sequences
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SYSNO ASEP 0381546 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Selfish supernumerary chromosome reveals its origin as a mosaic of host genome and organellar sequences Author(s) Martis, M.M. (DE)
Klemme, S. (DE)
Banaei-Moghaddam, A.M. (DE)
Blattner, F.R. (DE)
Macas, Jiří (BC-A) RID, ORCID, SAI
Schmutzer, T. (DE)
Scholz, U. (DE)
Gundlach, H. (DE)
Wicker, T. (CH)
Šimková, Hana (UEB-Q) RID, ORCID
Novák, Petr (BC-A) RID, ORCID
Neumann, Pavel (BC-A) RID, ORCID
Kubaláková, Marie (UEB-Q) RID
Bauer, E. (DE)
Haseneyer, G. (DE)
Fuchs, J. (DE)
Doležel, Jaroslav (UEB-Q) RID, ORCID
Stein, N. (DE)
Mayer, K.F.X. (DE)
Houben, A. (DE)Number of authors 20 Source Title Proceedings of the National Academy of Sciences of the United States of America. - : National Academy of Sciences - ISSN 0027-8424
Roč. 109, č. 33 (2012), s. 13343-13346Number of pages 4 s. Publication form Print - P Language eng - English Country US - United States Keywords FULL-LENGTH CDNAS ; SECALE-CEREALE L. ; B-CHROMOSOMES ; REPETITIVE SEQUENCES Subject RIV EB - Genetics ; Molecular Biology Subject RIV - cooperation Institute of Experimental Botany - Genetics ; Molecular Biology R&D Projects GBP501/12/G090 GA ČR - Czech Science Foundation (CSF) OC10037 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support BC-A - RVO:60077344 ; UEB-Q - RVO:61389030 CEZ AV0Z50510513 - UMBR-M, BC-A (2005-2011) UT WOS 000307807000047 DOI 10.1073/pnas.1204237109 Annotation Supernumerary B chromosomes are optional additions to the basic set of A chromosomes, and occur in all eukaryotic groups. They differ from the basic complement in morphology, pairing behavior, and inheritance and are not required for normal growth and development. The current view is that B chromosomes are parasitic elements comparable to selfish DNA, like transposons. In contrast to transposons, they are autonomously inherited independent of the host genome and have their own mechanisms of mitotic or meiotic drive. Although B chromosomes were first described a century ago, little is known about their origin and molecular makeup. The widely accepted view is that they are derived from fragments of A chromosomes and/or generated in response to interspecific hybridization. Through next-generation sequencing of sorted A and B chromosomes, we show that B chromosomes of rye are rich in gene-derived sequences, allowing us to trace their origin to fragments of A chromosomes, with the largest parts corresponding to rye chromosomes 3R and 7R. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2013
Number of the records: 1