Adaptation to altitude affects the senescence response to chilling in the perennial plant Arabis alpina

Wingler, Astrid; Juvany, Marta; Cuthbert, Caroline; Munné‐Bosch, Sergi

doi:10.1093/jxb/eru426

Cited by 33 publications

(35 citation statements)

References 56 publications

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“…Compared with the control sample, 925 up-regulated genes and 254 down-regulated genes were identified as DEGs, indicating that the altered genes are involved in regulating the response to cold treatment. Similar to previous reports from many other species, the number of DEGs identified under cold stress was increased compared with the control [26–28]. Interestingly, among the 925 up-regulated transcripts, 91 (9.8%) had unknown/unclassified functions (S2 Table).…”

Section: Discussionsupporting

confidence: 86%

De novo assembly and analysis of the transcriptome of Rumex patientia L. during cold stress

Liu

Zhang

et al. 2017

PLoS ONE

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BackgroundRumex patientia L. is consumed as a green vegetable in several parts of the world, and can withstand extremely low temperatures (-35°C). However, little or no available genomic data for this species has been reported to date. Here, we used Illumina Hiseq technology for transcriptome assembly in R. patientia under normal and cold conditions to evaluate how it responds to cold stress.ResultsAfter an in-depth RNA-Seq analysis, 115,589 unigenes were produced from the assembled transcripts. Based on similarity search analysis with seven databases, we obtained and annotated 60,157 assembled unigenes to at least one database. In total, 1,179 unigenes that were identified as differentially expressed genes (DEGs), including up-regulated (925) and down-regulated ones (254), were successfully assigned GO annotations and classified into three major metabolic pathways. Ribosome, carbon metabolism, oxidative phosphorylation and biosynthesis of amino acids were the most highly enriched pathways according to KEGG analysis. Overall, 66 up-regulated genes were identified as putatively involved in the response to cold stress, including members of MYB, AP2/ERF, CBF, Znf, bZIP, NAC and COR families.ConclusionTo our knowledge, this investigation was the first to provide a cold-responsive (COR) transcriptome assembly in R. patientia. A large number of potential COR genes were identified, suggesting that this species is suitable for cultivation in northern China. In summary, these data provide valuable information for future research and genomic studies in R. patientia.

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Section: Discussionsupporting

confidence: 86%

De novo assembly and analysis of the transcriptome of Rumex patientia L. during cold stress

Liu

Zhang

et al. 2017

PLoS ONE

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“…Hence, the highly induced sucrose transporter genes ( SUC2/7 ) should be important candidates to cope with multiple stress conditions. Previous reports have revealed that both stress and sugar accumulation can promote leaf senescence (Masclaux-Daubresse et al, 2007; Wingler et al, 2015). In the perennial plant Arabis alpina , sugar accumulates strongly in response to cold stress while it is correlated with the senescence dependent decline in chlorophyll at warm temperature (Wingler et al, 2015).…”

Section: Discussionmentioning

confidence: 97%

“…Previous reports have revealed that both stress and sugar accumulation can promote leaf senescence (Masclaux-Daubresse et al, 2007; Wingler et al, 2015). In the perennial plant Arabis alpina , sugar accumulates strongly in response to cold stress while it is correlated with the senescence dependent decline in chlorophyll at warm temperature (Wingler et al, 2015). The observation that senescence is delayed and not accelerated despite sugar accumulation in the CT and CD can be explained with cold acclimation releasing the sugar-dependent repression of photosynthetic genes (Strand, 1997).…”

Section: Discussionmentioning

confidence: 97%

Global Transcriptional Analysis Reveals the Complex Relationship between Tea Quality, Leaf Senescence and the Responses to Cold-Drought Combined Stress in Camellia sinensis

et al. 2016

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In field conditions, especially in arid and semi-arid areas, tea plants are often simultaneously exposed to various abiotic stresses such as cold and drought, which have profound effects on leaf senescence process and tea quality. However, most studies of gene expression in stress responses focus on a single inciting agent, and the confounding effect of multiple stresses on crop quality and leaf senescence remain unearthed. Here, global transcriptome profiles of tea leaves under separately cold and drought stress were compared with their combination using RNA-Seq technology. This revealed that tea plants shared a large overlap in unigenes displayed “similar” (26%) expression pattern and avoid antagonistic responses (lowest level of “prioritized” mode: 0%) to exhibit very congruent responses to co-occurring cold and drought stress; 31.5% differential expressed genes and 38% of the transcriptome changes in response to combined stresses were unpredictable from cold or drought single-case studies. We also identified 319 candidate genes for enhancing plant resistance to combined stress. We then investigated the combined effect of cold and drought on tea quality and leaf senescence. Our results showed that drought-induced leaf senescence were severely delayed by (i) modulation of a number of senescence-associated genes and cold responsive genes, (ii) enhancement of antioxidant capacity, (iii) attenuation of lipid degradation, (iv) maintenance of cell wall and photosynthetic system, (v) alteration of senescence-induced sugar effect/sensitivity, as well as (vi) regulation of secondary metabolism pathways that significantly influence the quality of tea during combined stress. Therefore, care should be taken when utilizing a set of stresses to try and maximize leaf longevity and tea quality.

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“…In the European Alps, A. alpina is restricted between 800 and 3000 meters (Huxley 1986). Studies so far have focused on the genetic architecture of flowering and perenniality (Wang et al 2009;Bergonzi et al 2013), leaf senescence (Wingler et al 2012;Wingler et al 2015) and phenotypic traits as root hair and trichomes (Chopra et al 2014). There is an ongoing effort in advancing the molecular knowledge of A. alpina by sequencing its genome (Melodelima and Lobreaux 2013;Lobreaux et al 2014;Willing et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Population dynamics of Arabis alpina in the French Alps: evidence for demographic compensation?

Andrello

Busson

et al. 2016

Preprint

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 Due to its genetic proximity with Arabidopsis thaliana, Arabis alpina (Brassicaceae) is increasingly used as a perennial model species in studies of molecular evolution and adaptation. We studied the demography of A. alpina in six natural sites widely differing in their degree of disturbance, slope and vegetation, and encompassing the full altitudinal range of the species. We estimated three vital rates (growth, reproductive effort and survival) for individuallymarked plants, studied for six years (2008)(2009)(2010)(2011)(2012)(2013)(2014). We characterized the thermic conditions of each site with different thermal variables obtained using in situ continuous-time data loggers. Although A. alpina is described as a perennial species, the average life expectancy was only 1.82 years and most plants died before setting seeds. Plant size was a strong predictor of all three vital rates. Mean daily temperature showed a positive effect on growth and a negative effect on survival.Furthermore, reproductive effort covaried negatively with survival, suggesting a mechanism of demographic compensation acting on an elevational gradient. Synthesis. These results are informative of the selective pressures experienced by A. alpina in natural conditions and will help design experimental and molecular studies of local adaptation in this species.

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Adaptation to altitude affects the senescence response to chilling in the perennial plant Arabis alpina

Abstract: SummaryPlants originating from high altitude have an increased capacity for sucrose accumulation in response to chilling and sucrose content is positively correlated with jasmonic acid in accessions from different altitudes.

Cited by 33 publications

References 56 publications

De novo assembly and analysis of the transcriptome of Rumex patientia L. during cold stress

De novo assembly and analysis of the transcriptome of Rumex patientia L. during cold stress

Global Transcriptional Analysis Reveals the Complex Relationship between Tea Quality, Leaf Senescence and the Responses to Cold-Drought Combined Stress in Camellia sinensis

Population dynamics of Arabis alpina in the French Alps: evidence for demographic compensation?

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