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Widespread and transgenerational retrotransposon activation in inter- and intraspecies recombinant inbred populations of Lotus japonicus.
- Source :
-
The Plant journal : for cell and molecular biology [Plant J] 2022 Sep; Vol. 111 (5), pp. 1397-1410. Date of Electronic Publication: 2022 Jul 30. - Publication Year :
- 2022
-
Abstract
- Transposable elements (TEs) constitute a large proportion of genomes of multicellular eukaryotes, including flowering plants. TEs are normally maintained in a silenced state and their transpositions rarely occur. Hybridization between distant species has been regarded as a 'shock' that stimulates genome reorganization, including TE mobilization. However, whether crosses between genetically close parents that result in viable and fertile offspring can induce TE transpositions has remained unclear. Here, we investigated the activation of long terminal repeat (LTR) retrotransposons in three Lotus japonicus recombinant inbred line (RIL) populations. We found that at least six LTR retrotransposon families were activated and transposed in 78% of the RILs investigated. LORE1a, one of the transposed LTR retrotransposons, showed transgenerational epigenetic activation, indicating the long-term effects of epigenetic instability induced by hybridization. Our study highlights TE activation as an unexpectedly common event in plant reproduction.<br /> (© 2022 Society for Experimental Biology and John Wiley & Sons Ltd.)
Details
- Language :
- English
- ISSN :
- 1365-313X
- Volume :
- 111
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- The Plant journal : for cell and molecular biology
- Publication Type :
- Academic Journal
- Accession number :
- 35792830
- Full Text :
- https://doi.org/10.1111/tpj.15896