Exploring transcription factors reveals crucial members and regulatory networks involved in different abiotic stresses in Brassica napus L

BMC Plant Biology
Pei WangDaojie Wang

Abstract

Brassica napus (B. napus) encompasses diverse transcription factors (TFs), but thorough identification and characterization of TF families, as well as their transcriptional responsiveness to multifarious stresses are still not clear. Totally 2167 TFs belonging to five families were genome-widely identified in B. napus, including 518 BnAP2/EREBPs, 252 BnbZIPs, 721 BnMYBs, 398 BnNACs and 278 BnWRKYs, which contained some novel members in comparison with existing results. Sub-genome distributions of BnAP2/EREBPs and BnMYBs indicated that the two families might have suffered from duplication and divergence during evolution. Synteny analysis revealed strong co-linearity between B. napus and its two ancestors, although chromosomal rearrangements have occurred and 85 TFs were lost. About 7.6% and 9.4% TFs of the five families in B. napus were novel genes and conserved genes, which both showed preference on the C sub-genome. RNA-Seq revealed that more than 80% TFs were abiotic stress inducible and 315 crucial differentially expressed genes (DEGs) were screened out. Network analysis revealed that the 315 DEGs are highly co-expressed. The homologous gene network in A. thaliana revealed that a considerable amount of TFs could trigger the ...Continue Reading

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May 23, 2020·International Journal of Molecular Sciences·Xinpeng ZhaoSuoping Li
Oct 17, 2019·Animals : an Open Access Journal From MDPI·Yongfu LaMingxing Chu
Aug 28, 2020·International Journal of Molecular Sciences·Yi ZhangCongming Lu
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Jan 19, 2021·Journal of Systems Science and Complexity·Pei Wang
Aug 17, 2021·Journal of Systems Science and Complexity·Pei Wang

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Datasets Mentioned

BETA
SRP109808

Methods Mentioned

BETA
RNA-Seq
salt treatments

Software Mentioned

ensemblgenomes
ClustalW
NOIseq
DNAMAN
SynMap
GenoScope
SynFind
TAIR
MEGA7
BRAD

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