Increased population epigenetic diversity of the clonal invasive species &lt;i&gt;Alternanthera philoxeroides&lt;/i&gt; in response to salinity stress

Shi, Wen; Hu, Xia; Chen, Xiaojie; Ou, Xiaokun; Yang, Ji; Geng, Yupeng

doi:10.1266/ggs.18-00039

Cited by 8 publications

(6 citation statements)

References 59 publications

(77 reference statements)

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“…This is imperative for invading new, heterogeneous ecosystems. For instance, a study of the clonal invader Alternanthera philoxeroides (alligator weed) found that under salinity stress, epigenetic diversity within a population was significantly increased [79]. Similar results were found when studying Reynoutria japonica (Japanese knotweed) another clonal invader [80].…”

Section: Epigeneticsmentioning

confidence: 55%

Ten Ways That Weed Evolution Defies Human Management Efforts Amidst a Changing Climate

Clements

Jones

2021

Agronomy

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The ability of weeds to evolve is key to their success, and the relationship between weeds and humans is marked by co-evolution going back to the agricultural revolution, with weeds evolving to counter human management actions. In recent years, climate change has emerged as yet another selection pressure imposed on weeds by humans, and weeds are likewise very capable of adapting to this latest stress of human origin. This review summarizes 10 ways this adaptation occurs: (1) general-purpose genotypes, (2) life history strategies, (3) ability to evolve rapidly, (4) epigenetic capacity, (5) hybridization, (6) herbicide resistance, (7) herbicide tolerance, (8) cropping systems vulnerability, (9) co-evolution of weeds with human management, and (10) the ability of weeds to ride the climate storm humans have generated. As pioneer species ecologically, these 10 ways enable weeds to adapt to the numerous impacts of climate change, including warming temperatures, elevated CO2, frequent droughts and extreme weather events. We conclude that although these 10 ways present formidable challenges for weed management, the novelty arising from weed evolution could be used creatively to prospect for genetic material to be used in crop improvement, and to develop a more holistic means of managing agroecosystems.

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Section: Epigeneticsmentioning

confidence: 55%

Ten Ways That Weed Evolution Defies Human Management Efforts Amidst a Changing Climate

Clements

Jones

2021

Agronomy

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“…According to the available reports, salinity undoubtedly changes the pattern of DNA methylation in plant genomes. This finding was confirmed by studies conducted on a clonal plant Alternanthera philoxeroides where the variation in the methylation patterns increased under the influence of salt stress [30]. The majority of the literature reports DNA hypermethylation under salt stress.…”

Section: Plos Onementioning

confidence: 56%

Salt stress and salt shock differently affect DNA methylation in salt-responsive genes in sugar beet and its wild, halophytic ancestor

et al. 2021

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Here we determined the impact of salt shock and salt stress on the level of DNA methylation in selected CpG islands localized in promoters or first exons of sixteen salt-responsive genes in beets. Two subspecies differing in salt tolerance were subjected for analysis, a moderately salt-tolerant sugar beet Beta vulgaris ssp. vulgaris cv. Huzar and a halophytic beet, Beta vulgaris ssp. maritima. The CpG island methylation status was determined. All target sequences were hyper- or hypomethylated under salt shock and/or salt stress in one or both beet subspecies. It was revealed that the genomic regions analyzed were highly methylated in both, the salt treated plants and untreated controls. Methylation of the target sequences changed in a salt-dependent manner, being affected by either one or both treatments. Under both shock and stress, the hypomethylation was a predominant response in sugar beet. In Beta vulgaris ssp. maritima, the hypermethylation occurred with higher frequency than hypomethylation, especially under salt stress and in the promoter-located CpG sites. Conversely, the hypomethylation of the promoter-located CpG sites predominated in sugar beet plants subjected to salt stress. This findings suggest that DNA methylation may be involved in salt-tolerance and transcriptomic response to salinity in beets.

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“…Epigenetic modifications are considered an alternative mechanism by which plants withstand stress without changing nucleotides in the DNA sequence (Kinoshita & Seki, 2014; Kovalchuk et al, 2003; Meyer, 2015; Shi et al, 2018). The MASP technique has been shown to be an effective molecular tool that can be used in plants with little genome data sequence information (Li et al 2011, Yang et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

“…Here we present the results of a study conducted with flax -an agricultural crop grown for six generations under chronic radiation stress and attempted to determine whether years of exposure to an Epigenetic modifications are considered an alternative mechanism by which plants withstand stress without changing nucleotides in the DNA sequence (Kinoshita & Seki, 2014;Kovalchuk et al, 2003;Meyer, 2015;Shi et al, 2018). The MASP technique has been shown…”

Section: Discussionmentioning

confidence: 99%

Effect of chronic radiation on the flax (Linum usitatissimum L.) genome grown for six consecutive generations in the radioactive Chernobyl area

Jopčík

Libantová

Lancíková

2022

Physiologia Plantarum

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The growth of plants under chronic radiation stress in the Chernobyl area may cause changes in the genome of plants. To assess the extent of genetic and epigenetic changes in nuclear DNA, seeds of the annual crop flax (Linum usitatissimum L.) of the Kyivskyi variety, sown 21 years after the accident and grown for six generations in radioactive (RAD) and remediated (REM) fields were analysed. Flaxseed used for sowing first generation, which served as a reference (REF), was also analysed. The AFLP (Amplified Fragment Length Polymorphism) revealed a higher number of specific EcoRI–MseI loci (3.4‐fold) in pooled flaxseed samples harvested from the RAD field compared with the REM field, indicating a link between the mutation process in the flax genome and the ongoing adaptation process. MSAP (Methylation‐Sensitive Amplified Polymorphism) detecting EcoRI–MspI and EcoRI–HpaII loci in flax nuclear DNA genome showed no significant differences in methylation level, reaching about 33% in each of the groups studied. On the other hand, significant changes in the DNA methylation pattern of flaxseed samples harvested from the RAD field compared with controls were detected. Pairwise FST comparison revealed within both, EcoRI–MspI and transformed methylation‐Sensitive data sets more than a 3‐fold increase of genetic divergence in the RAD field compared with both controls. These results indicate that the nuclear genome of flax exposed to chronic radiation for six generations has more mutations and uses DNA methylation as one of the adaptation mechanisms for sustainability under adverse conditions.

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Increased population epigenetic diversity of the clonal invasive species <i>Alternanthera philoxeroides</i> in response to salinity stress

Cited by 8 publications

References 59 publications

Ten Ways That Weed Evolution Defies Human Management Efforts Amidst a Changing Climate

Ten Ways That Weed Evolution Defies Human Management Efforts Amidst a Changing Climate

Salt stress and salt shock differently affect DNA methylation in salt-responsive genes in sugar beet and its wild, halophytic ancestor

Effect of chronic radiation on the flax (Linum usitatissimum L.) genome grown for six consecutive generations in the radioactive Chernobyl area

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