Downregulation of Barley Regulator of Telomere Elongation Helicase 1 Alters the Distribution of Meiotic Crossovers.
Downregulation of Barley Regulator of Telomere Elongation Helicase 1 Alters the Distribution of Meiotic Crossovers.
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DOI:
10.3389/fpls.2021.745070
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发表时间:
2021
影响因子:
5.6
通讯作者:
Waugh R
中科院分区:
文献类型:
--
作者:
Barakate A;Arrieta M;Macaulay M;Vivera S;Davidson D;Stephens J;Orr J;Schreiber M;Ramsay L;Halpin C;Waugh R
Programmed meiotic DNA double-strand breaks (DSBs), necessary for proper chromosomal segregation and viable gamete formation, are repaired by homologous recombination (HR) as crossovers (COs) or non-crossovers (NCOs). The mechanisms regulating the number and distribution of COs are still poorly understood. The regulator of telomere elongation helicase 1 (RTEL1) DNA helicase was previously shown to enforce the number of meiotic COs in Caenorhabditis elegans but its function in plants has been studied only in the vegetative phase. Here, we characterised barley RTEL1 gene structure and expression using RNA-seq data previously obtained from vegetative and reproductive organs and tissues. Using RNAi, we downregulated RTEL1 expression specifically in reproductive tissues and analysed its impact on recombination using a barley 50k iSelect SNP Array. Unlike in C. elegans, in a population segregating for RTEL1 downregulated by RNAi, high resolution genome-wide genetic analysis revealed a significant increase of COs at distal chromosomal regions of barley without a change in their total number. Our data reveal the important role of RTEL1 helicase in plant meiosis and control of recombination.
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影响因子:
10.7
作者:
Castresana, J
通讯作者:
Castresana, J
DOI:
10.1073/pnas.2021671118
发表时间:
2021-04-06
影响因子:
11.1
作者:
France MG;Enderle J;Röhrig S;Puchta H;Franklin FCH;Higgins JD
通讯作者:
Higgins JD
影响因子:
5.6
作者:
Blary A;Gonzalo A;Eber F;Bérard A;Bergès H;Bessoltane N;Charif D;Charpentier C;Cromer L;Fourment J;Genevriez C;Le Paslier MC;Lodé M;Lucas MO;Nesi N;Lloyd A;Chèvre AM;Jenczewski E
通讯作者:
Jenczewski E
影响因子:
4.3
作者:
Frith, Martin C.;Saunders, Neil F. W.;Kobe, Bostjan;Bailey, Timothy L.
通讯作者:
Bailey, Timothy L.
影响因子:
4.5
作者:
Dorn, Annika;Feller, Laura;Puchta, Holger
通讯作者:
Puchta, Holger