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The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata
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| Zeitschriftentitel: | Mobile DNA |
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| Personen und Körperschaften: | , , , |
| In: | Mobile DNA, 3, 2012, 1 |
| Format: | E-Article |
| Sprache: | Englisch |
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Springer Science and Business Media LLC
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| author_facet |
de la Chaux, Nicole Tsuchimatsu, Takashi Shimizu, Kentaro K Wagner, Andreas de la Chaux, Nicole Tsuchimatsu, Takashi Shimizu, Kentaro K Wagner, Andreas |
|---|---|
| author |
de la Chaux, Nicole Tsuchimatsu, Takashi Shimizu, Kentaro K Wagner, Andreas |
| spellingShingle |
de la Chaux, Nicole Tsuchimatsu, Takashi Shimizu, Kentaro K Wagner, Andreas Mobile DNA The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata Molecular Biology |
| author_sort |
de la chaux, nicole |
| spelling |
de la Chaux, Nicole Tsuchimatsu, Takashi Shimizu, Kentaro K Wagner, Andreas 1759-8753 Springer Science and Business Media LLC Molecular Biology http://dx.doi.org/10.1186/1759-8753-3-2 <jats:title>Abstract</jats:title><jats:sec><jats:title>Background</jats:title><jats:p>Transposable elements (TEs) are major contributors to genome evolution. One factor that influences their evolutionary dynamics is whether their host reproduces through selfing or through outcrossing. According to the recombinational spreading hypothesis, for instance, TEs can spread more easily in outcrossing species through recombination, and should thus be less abundant in selfing species. We here studied the distribution and evolutionary dynamics of TE families in the predominantly selfing plant<jats:italic>Arabidopsis thaliana</jats:italic>and its close outcrossing relative<jats:italic>Arabidopsis lyrata</jats:italic>on a genome-wide scale. We characterized differences in TE abundance between them and asked which, if any, existing hypotheses about TE abundances may explain these differences.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>We identified 1,819 TE families representing all known classes of TEs in both species, and found three times more copies in the outcrossing<jats:italic>A. lyrata</jats:italic>than in the predominantly selfing<jats:italic>A. thaliana</jats:italic>, as well as ten times more TE families unique to<jats:italic>A. lyrata</jats:italic>. On average, elements in<jats:italic>A. lyrata</jats:italic>are younger than elements in<jats:italic>A</jats:italic>.<jats:italic>thaliana</jats:italic>. In particular,<jats:italic>A. thaliana</jats:italic>shows a marked decrease in element number that occurred during the most recent 10% of the time interval since<jats:italic>A. thaliana</jats:italic>split from<jats:italic>A. lyrata</jats:italic>. This most recent period in the evolution of<jats:italic>A. thaliana</jats:italic>started approximately 500,000 years ago, assuming a splitting time of 5 million years ago, and coincides with the time at which predominant selfing originated.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Our results indicate that the mating system may be important for determining TE copy number, and that selfing species are likely to have fewer TEs.</jats:p></jats:sec> The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata Mobile DNA |
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| title |
The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_unstemmed |
The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_full |
The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_fullStr |
The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_full_unstemmed |
The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_short |
The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_sort |
the predominantly selfing plant arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative arabidopsis lyrata |
| topic |
Molecular Biology |
| url |
http://dx.doi.org/10.1186/1759-8753-3-2 |
| publishDate |
2012 |
| physical |
|
| description |
<jats:title>Abstract</jats:title><jats:sec><jats:title>Background</jats:title><jats:p>Transposable elements (TEs) are major contributors to genome evolution. One factor that influences their evolutionary dynamics is whether their host reproduces through selfing or through outcrossing. According to the recombinational spreading hypothesis, for instance, TEs can spread more easily in outcrossing species through recombination, and should thus be less abundant in selfing species. We here studied the distribution and evolutionary dynamics of TE families in the predominantly selfing plant<jats:italic>Arabidopsis thaliana</jats:italic>and its close outcrossing relative<jats:italic>Arabidopsis lyrata</jats:italic>on a genome-wide scale. We characterized differences in TE abundance between them and asked which, if any, existing hypotheses about TE abundances may explain these differences.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>We identified 1,819 TE families representing all known classes of TEs in both species, and found three times more copies in the outcrossing<jats:italic>A. lyrata</jats:italic>than in the predominantly selfing<jats:italic>A. thaliana</jats:italic>, as well as ten times more TE families unique to<jats:italic>A. lyrata</jats:italic>. On average, elements in<jats:italic>A. lyrata</jats:italic>are younger than elements in<jats:italic>A</jats:italic>.<jats:italic>thaliana</jats:italic>. In particular,<jats:italic>A. thaliana</jats:italic>shows a marked decrease in element number that occurred during the most recent 10% of the time interval since<jats:italic>A. thaliana</jats:italic>split from<jats:italic>A. lyrata</jats:italic>. This most recent period in the evolution of<jats:italic>A. thaliana</jats:italic>started approximately 500,000 years ago, assuming a splitting time of 5 million years ago, and coincides with the time at which predominant selfing originated.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Our results indicate that the mating system may be important for determining TE copy number, and that selfing species are likely to have fewer TEs.</jats:p></jats:sec> |
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| author | de la Chaux, Nicole, Tsuchimatsu, Takashi, Shimizu, Kentaro K, Wagner, Andreas |
| author_facet | de la Chaux, Nicole, Tsuchimatsu, Takashi, Shimizu, Kentaro K, Wagner, Andreas, de la Chaux, Nicole, Tsuchimatsu, Takashi, Shimizu, Kentaro K, Wagner, Andreas |
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| description | <jats:title>Abstract</jats:title><jats:sec><jats:title>Background</jats:title><jats:p>Transposable elements (TEs) are major contributors to genome evolution. One factor that influences their evolutionary dynamics is whether their host reproduces through selfing or through outcrossing. According to the recombinational spreading hypothesis, for instance, TEs can spread more easily in outcrossing species through recombination, and should thus be less abundant in selfing species. We here studied the distribution and evolutionary dynamics of TE families in the predominantly selfing plant<jats:italic>Arabidopsis thaliana</jats:italic>and its close outcrossing relative<jats:italic>Arabidopsis lyrata</jats:italic>on a genome-wide scale. We characterized differences in TE abundance between them and asked which, if any, existing hypotheses about TE abundances may explain these differences.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>We identified 1,819 TE families representing all known classes of TEs in both species, and found three times more copies in the outcrossing<jats:italic>A. lyrata</jats:italic>than in the predominantly selfing<jats:italic>A. thaliana</jats:italic>, as well as ten times more TE families unique to<jats:italic>A. lyrata</jats:italic>. On average, elements in<jats:italic>A. lyrata</jats:italic>are younger than elements in<jats:italic>A</jats:italic>.<jats:italic>thaliana</jats:italic>. In particular,<jats:italic>A. thaliana</jats:italic>shows a marked decrease in element number that occurred during the most recent 10% of the time interval since<jats:italic>A. thaliana</jats:italic>split from<jats:italic>A. lyrata</jats:italic>. This most recent period in the evolution of<jats:italic>A. thaliana</jats:italic>started approximately 500,000 years ago, assuming a splitting time of 5 million years ago, and coincides with the time at which predominant selfing originated.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Our results indicate that the mating system may be important for determining TE copy number, and that selfing species are likely to have fewer TEs.</jats:p></jats:sec> |
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| imprint | Springer Science and Business Media LLC, 2012 |
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| institution | DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229 |
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| spelling | de la Chaux, Nicole Tsuchimatsu, Takashi Shimizu, Kentaro K Wagner, Andreas 1759-8753 Springer Science and Business Media LLC Molecular Biology http://dx.doi.org/10.1186/1759-8753-3-2 <jats:title>Abstract</jats:title><jats:sec><jats:title>Background</jats:title><jats:p>Transposable elements (TEs) are major contributors to genome evolution. One factor that influences their evolutionary dynamics is whether their host reproduces through selfing or through outcrossing. According to the recombinational spreading hypothesis, for instance, TEs can spread more easily in outcrossing species through recombination, and should thus be less abundant in selfing species. We here studied the distribution and evolutionary dynamics of TE families in the predominantly selfing plant<jats:italic>Arabidopsis thaliana</jats:italic>and its close outcrossing relative<jats:italic>Arabidopsis lyrata</jats:italic>on a genome-wide scale. We characterized differences in TE abundance between them and asked which, if any, existing hypotheses about TE abundances may explain these differences.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>We identified 1,819 TE families representing all known classes of TEs in both species, and found three times more copies in the outcrossing<jats:italic>A. lyrata</jats:italic>than in the predominantly selfing<jats:italic>A. thaliana</jats:italic>, as well as ten times more TE families unique to<jats:italic>A. lyrata</jats:italic>. On average, elements in<jats:italic>A. lyrata</jats:italic>are younger than elements in<jats:italic>A</jats:italic>.<jats:italic>thaliana</jats:italic>. In particular,<jats:italic>A. thaliana</jats:italic>shows a marked decrease in element number that occurred during the most recent 10% of the time interval since<jats:italic>A. thaliana</jats:italic>split from<jats:italic>A. lyrata</jats:italic>. This most recent period in the evolution of<jats:italic>A. thaliana</jats:italic>started approximately 500,000 years ago, assuming a splitting time of 5 million years ago, and coincides with the time at which predominant selfing originated.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Our results indicate that the mating system may be important for determining TE copy number, and that selfing species are likely to have fewer TEs.</jats:p></jats:sec> The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata Mobile DNA |
| spellingShingle | de la Chaux, Nicole, Tsuchimatsu, Takashi, Shimizu, Kentaro K, Wagner, Andreas, Mobile DNA, The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata, Molecular Biology |
| title | The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_full | The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_fullStr | The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_full_unstemmed | The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_short | The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| title_sort | the predominantly selfing plant arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative arabidopsis lyrata |
| title_unstemmed | The predominantly selfing plant Arabidopsis thaliana experienced a recent reduction in transposable element abundance compared to its outcrossing relative Arabidopsis lyrata |
| topic | Molecular Biology |
| url | http://dx.doi.org/10.1186/1759-8753-3-2 |