Abstract:
:Plants can show long-term effects of environmental stresses and in some cases a stress "memory" has been reported to persist across generations, potentially mediated by epigenetic mechanisms. However, few documented cases exist of transgenerational effects that persist for multiple generations and it remains unclear if or how epigenetic mechanisms are involved. Here, we show that the composition of small regulatory RNAs in apomictic dandelion lineages reveals a footprint of drought stress and salicylic acid treatment experienced two generations ago. Overall proportions of 21 and 24 nt RNA pools were shifted due to grandparental treatments. While individual genes did not show strong up- or downregulation of associated sRNAs, the subset of genes that showed the strongest shifts in sRNA abundance was significantly enriched for several GO terms including stress-specific functions. This suggests that a stress-induced signal was transmitted across multiple unexposed generations leading to persistent changes in epigenetic gene regulation.
journal_name
Mol Biol Evoljournal_title
Molecular biology and evolutionauthors
Morgado L,Preite V,Oplaat C,Anava S,Ferreira de Carvalho J,Rechavi O,Johannes F,Verhoeven KJFdoi
10.1093/molbev/msx150subject
Has Abstractpub_date
2017-08-01 00:00:00pages
2035-2040issue
8eissn
0737-4038issn
1537-1719pii
3797321journal_volume
34pub_type
杂志文章abstract::This paper concludes that the statistical properties of protein evolution are compatible with a particular model of evolution by natural selection. The argument begins with a statistical description of the molecular clock based on a Poisson process with a randomly varying tick rate. If the time scale of the change of ...
journal_title:Molecular biology and evolution
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doi:10.1093/oxfordjournals.molbev.a040382
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abstract::The acrosomal protein bindin attaches sperm to eggs during sea urchin fertilization. Complementary to ongoing functional biochemical studies, I take a comparative approach to explore the molecular evolution of bindin in a group of closely related free-spawning echinoid species. Two alleles of the mature bindin gene we...
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journal_title:Molecular biology and evolution
pub_type: 杂志文章
doi:10.1093/oxfordjournals.molbev.a003945
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journal_title:Molecular biology and evolution
pub_type: 杂志文章
doi:10.1093/molbev/mst098
更新日期:2013-08-01 00:00:00
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更新日期:2002-12-01 00:00:00
abstract::Many methods exist for detecting introgression between nonsister species, but the most commonly used require either a single sequence from four or more taxa or multiple sequences from each of three taxa. Here, we present a test for introgression that uses only a single sequence from three taxa. This test, denoted D3, ...
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Molecular biology and evolution
pub_type: 杂志文章
doi:10.1093/molbev/msu131
更新日期:2014-06-01 00:00:00
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journal_title:Molecular biology and evolution
pub_type: 杂志文章
doi:10.1093/molbev/msr093
更新日期:2011-09-01 00:00:00
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journal_title:Molecular biology and evolution
pub_type: 杂志文章
doi:10.1093/molbev/mst010
更新日期:2013-04-01 00:00:00
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pub_type: 杂志文章
doi:10.1093/molbev/msz148
更新日期:2019-10-01 00:00:00
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journal_title:Molecular biology and evolution
pub_type: 评论,信件
doi:10.1093/molbev/msj006
更新日期:2006-01-01 00:00:00
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journal_title:Molecular biology and evolution
pub_type: 杂志文章
doi:10.1093/molbev/msu063
更新日期:2014-05-01 00:00:00
abstract::Viral genome integration provides a complex route to biological innovation that has rarely but repeatedly occurred in one of the most diverse lineages of organisms on the planet, parasitoid wasps. We describe a novel endogenous virus in braconid wasps derived from pathogenic alphanudiviruses. Limited to a subset of th...
journal_title:Molecular biology and evolution
pub_type: 杂志文章
doi:10.1093/molbev/msy148
更新日期:2018-10-01 00:00:00
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journal_title:Molecular biology and evolution
pub_type: 历史文章,杂志文章
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pub_type: 杂志文章
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journal_title:Molecular biology and evolution
pub_type: 信件
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更新日期:2012-08-01 00:00:00
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journal_title:Molecular biology and evolution
pub_type: 杂志文章
doi:10.1093/oxfordjournals.molbev.a004151
更新日期:2002-06-01 00:00:00
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journal_title:Molecular biology and evolution
pub_type: 杂志文章
doi:10.1093/oxfordjournals.molbev.a040111
更新日期:1994-03-01 00:00:00
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journal_title:Molecular biology and evolution
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更新日期:2019-05-01 00:00:00
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journal_title:Molecular biology and evolution
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更新日期:2009-11-01 00:00:00
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更新日期:2020-11-01 00:00:00