Re-analysis of publicly available methylomes using signal detection yields new information.
Re-analysis of publicly available methylomes using signal detection yields new information.
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DOI:
10.1038/s41598-023-30422-4
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发表时间:
2023-02-27
影响因子:
4.6
通讯作者:
Mackenzie, Sally
中科院分区:
文献类型:
--
作者:
Hafner, Alenka;Mackenzie, Sally
Cytosine methylation is an epigenetic mark that participates in regulation of gene expression and chromatin stability in plants. Advancements in whole genome sequencing technologies have enabled investigation of methylome dynamics under different conditions. However, the computational methods for analyzing bisulfite sequence data have not been unified. Contention remains in the correlation of differentially methylated positions with the investigated treatment and exclusion of noise, inherent to these stochastic datasets. The prevalent approaches apply Fisher’s exact test, logistic, or beta regression, followed by an arbitrary cut-off for differences in methylation levels. A different strategy, the MethylIT pipeline, utilizes signal detection to determine cut-off based on a fitted generalized gamma probability distribution of methylation divergence. Re-analysis of publicly available BS-seq data from two epigenetic studies in Arabidopsis and applying MethylIT revealed additional, previously unreported results. Methylome repatterning in response to phosphate starvation was confirmed to be tissue-specific and included phosphate assimilation genes in addition to sulfate metabolism genes not implicated in the original study. During seed germination plants undergo major methylome reprogramming and use of MethylIT allowed us to identify stage-specific gene networks. We surmise from these comparative studies that robust methylome experiments must account for data stochasticity to achieve meaningful functional analyses.
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影响因子:
12.3
作者:
Buels R;Yao E;Diesh CM;Hayes RD;Munoz-Torres M;Helt G;Goodstein DM;Elsik CG;Lewis SE;Stein L;Holmes IH
通讯作者:
Holmes IH
DOI:
10.1021/jp409887t
发表时间:
2013-12-27
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
Yusufaly TI;Li Y;Olson WK
通讯作者:
Olson WK
影响因子:
3
作者:
Dolzhenko E;Smith AD
通讯作者:
Smith AD
影响因子:
12.3
作者:
Akalin A;Kormaksson M;Li S;Garrett-Bakelman FE;Figueroa ME;Melnick A;Mason CE
通讯作者:
Mason CE
影响因子:
2
作者:
Kaur P;Plochberger B;Costa P;Cope SM;Vaiana SM;Lindsay S
通讯作者:
Lindsay S