The utility of flow sorting to identify chromosomes carrying a single copy transgene in wheat

0461519 - ÚEB 2017 RIV GB eng J - Journal Article
Cápal, Petr - Endo, Takashi R. - Vrána, Jan - Kubaláková, Marie - Karafiátová, Miroslava - Komínková, Eva - Mora-Ramirez, I. - Weschke, W. - Doležel, Jaroslav
The utility of flow sorting to identify chromosomes carrying a single copy transgene in wheat.
Plant Methods. Roč. 12, APR 25 (2016), s. 24. E-ISSN 1746-4811
R&D Projects: GA MŠMT(CZ) LO1204; GA ČR GBP501/12/G090
Institutional support: RVO:61389030
Keywords : Transgene localization * Flow cytometric sorting * Single chromosome amplification
Subject RIV: EB - Genetics ; Molecular Biology
Impact factor: 3.510, year: 2016

Background: Identification of transgene insertion sites in plant genomes has practical implications for crop breeding and is a stepping stone to analyze transgene function. However, single copy sequences are not always easy to localize in large plant genomes by standard approaches.
Results: We employed flow cytometric chromosome sorting to determine chromosomal location of barley sucrose transporter construct in three transgenic lines of common wheat. Flow-sorted chromosomes were used as template for PCR and fluorescence in situ hybridization to identify chromosomes with transgenes. The chromosomes carrying the transgenes were then confirmed by PCR using DNA amplified from single flow-sorted chromosomes as template.
Conclusions: Insertion sites of the transgene were unambiguously localized to chromosomes 4A, 7A and 5D in three wheat transgenic lines. The procedure presented in this study is applicable for localization of any single-copy sequence not only in wheat, but in any plant species where suspension of intact mitotic chromosomes suitable for flow cytometric sorting can be prepared.
Permanent Link: http://hdl.handle.net/11104/0261143