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Heritable heading time variation in wheat lines with the same number of Ppd-B1 gene copies
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SYSNO ASEP 0478866 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Heritable heading time variation in wheat lines with the same number of Ppd-B1 gene copies Author(s) Ivaničová, Zuzana (UEB-Q) RID
Valárik, Miroslav (UEB-Q) RID, ORCID
Pánková, K. (CZ)
Trávníčková, M. (CZ)
Doležel, Jaroslav (UEB-Q) RID, ORCID
Šafář, Jan (UEB-Q) RID, ORCID
Milec, Zbyněk (UEB-Q) RID, ORCIDNumber of authors 7 Article number e0183745 Source Title PLoS ONE. - : Public Library of Science - ISSN 1932-6203
Roč. 12, č. 8 (2017)Number of pages 15 s. Language eng - English Country US - United States Keywords triticum-aestivum l. ; dna methylation ; copy number ; flowering time ; human genome ; se gene ; vernalization ; earliness ; barley ; region Subject RIV EB - Genetics ; Molecular Biology OECD category Plant sciences, botany R&D Projects LO1204 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GBP501/12/G090 GA ČR - Czech Science Foundation (CSF) Institutional support UEB-Q - RVO:61389030 UT WOS 000408438600048 DOI 10.1371/journal.pone.0183745 Annotation The ability of plants to identify an optimal flowering time is critical for ensuring the production of viable seeds. The main environmental factors that influence the flowering time include the ambient temperature and day length. In wheat, the ability to assess the day length is controlled by photoperiod (Ppd) genes. Due to its allohexaploid nature, bread wheat carries the following three Ppd-1 genes: Ppd-A1, Ppd-B1 and Ppd-D1. While photoperiod (in) sensitivity controlled by Ppd-A1 and Ppd-D1 is mainly determined by sequence changes in the promoter region, the impact of the Ppd-B1 alleles on the heading time has been linked to changes in the copy numbers (and possibly their methylation status) and sequence changes in the promoter region. Here, we report that plants with the same number of Ppd-B1 copies may have different heading times. Differences were observed among F-7 lines derived from crossing two spring hexaploid wheat varieties. Several lines carrying three copies of Ppd-B1 headed 16 days later than other plants in the population with the same number of gene copies. This effect was associated with changes in the gene expression level and methylation of the Ppd-B1 gene. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2018
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