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Dynamics of male meiotic recombination frequency during plant development using Fluorescent Tagged Lines in Arabidopsis thaliana

Fan Li (UGent), Nico De Storme (UGent) and Danny Geelen (UGent)
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Abstract
Meiotic homologous recombination plays a central role in creating genetic variability, making it an essential biological process relevant to evolution and crop breeding. In this study, we used pollenspecific fluorescent tagged lines (FTLs) to measure male meiotic recombination frequency during the development of Arabidopsis thaliana. Interestingly, a subset of pollen grains consistently shows loss of fluorescence expression in tested lines. Using nine independent FTL intervals, the spatio-temporal dynamics of male recombination frequency was assessed during plant development, considering both shoot type and plant age as independent parameters. In most genomic intervals assayed, male meiotic recombination frequency is highly consistent during plant development, showing no significant change between different shoot types and during plant aging. However, in some genomic regions, such as I1a and I5a, a small but significant effect of either developmental position or plant age were observed, indicating that the meiotic CO frequency in those intervals varies during plant development. Furthermore, from an overall view of all nine genomic intervals assayed, both primary and tertiary shoots show a similar dynamics of increasing recombination frequency during development, while secondary and lateral shoots remain highly stable. Our results provide new insights in the dynamics of male meiotic recombination frequency during plant development.
Keywords
CROSSOVER FREQUENCY, VISUAL ASSAY, POLLEN, MEIOSIS, INTERFERENCE, LANDSCAPE, TETRADS, GENE

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Chicago
Li, Fan, Nico De Storme, and Danny Geelen. 2017. “Dynamics of Male Meiotic Recombination Frequency During Plant Development Using Fluorescent Tagged Lines in Arabidopsis Thaliana.” Scientific Reports 7.
APA
Li, Fan, De Storme, N., & Geelen, D. (2017). Dynamics of male meiotic recombination frequency during plant development using Fluorescent Tagged Lines in Arabidopsis thaliana. SCIENTIFIC REPORTS, 7.
Vancouver
1.
Li F, De Storme N, Geelen D. Dynamics of male meiotic recombination frequency during plant development using Fluorescent Tagged Lines in Arabidopsis thaliana. SCIENTIFIC REPORTS. 2017;7.
MLA
Li, Fan, Nico De Storme, and Danny Geelen. “Dynamics of Male Meiotic Recombination Frequency During Plant Development Using Fluorescent Tagged Lines in Arabidopsis Thaliana.” SCIENTIFIC REPORTS 7 (2017): n. pag. Print.
@article{8510532,
  abstract     = {Meiotic homologous recombination plays a central role in creating genetic variability, making it an essential biological process relevant to evolution and crop breeding. In this study, we used pollenspecific fluorescent tagged lines (FTLs) to measure male meiotic recombination frequency during the development of Arabidopsis thaliana. Interestingly, a subset of pollen grains consistently shows loss of fluorescence expression in tested lines. Using nine independent FTL intervals, the spatio-temporal dynamics of male recombination frequency was assessed during plant development, considering both shoot type and plant age as independent parameters. In most genomic intervals assayed, male meiotic recombination frequency is highly consistent during plant development, showing no significant change between different shoot types and during plant aging. However, in some genomic regions, such as I1a and I5a, a small but significant effect of either developmental position or plant age were observed, indicating that the meiotic CO frequency in those intervals varies during plant development. Furthermore, from an overall view of all nine genomic intervals assayed, both primary and tertiary shoots show a similar dynamics of increasing recombination frequency during development, while secondary and lateral shoots remain highly stable. Our results provide new insights in the dynamics of male meiotic recombination frequency during plant development.},
  author       = {Li, Fan and De Storme, Nico and Geelen, Danny},
  issn         = {2045-2322},
  journal      = {SCIENTIFIC REPORTS},
  keyword      = {CROSSOVER FREQUENCY,VISUAL ASSAY,POLLEN,MEIOSIS,INTERFERENCE,LANDSCAPE,TETRADS,GENE},
  language     = {eng},
  title        = {Dynamics of male meiotic recombination frequency during plant development using Fluorescent Tagged Lines in Arabidopsis thaliana},
  url          = {http://dx.doi.org/10.1038/srep42535},
  volume       = {7},
  year         = {2017},
}

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