Genome-wide analysis of the distribution of AP2-ERF transcription factors reveals duplication and CBFs genes elucidate their potential function in Brassica oleraceaReportar como inadecuado




Genome-wide analysis of the distribution of AP2-ERF transcription factors reveals duplication and CBFs genes elucidate their potential function in Brassica oleracea - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

BMC Genomics

, 15:422

Plant genomics

Abstract

BackgroundCabbage Brassica oleracea is one of the most important leaf vegetables grown worldwide. The entire cabbage genome sequence and more than fifty thousand proteins have been obtained to date. However a high degree of sequence similarity and conserved genome structure remain between cabbage and Arabidopsis; therefore, Arabidopsis is a viable reference species for comparative genomics studies. Transcription factors TFs are important regulators involved in plant development and physiological processes and the AP2-ERF protein family contains transcriptional factors that play a crucial role in plant growth and development, as well as response to biotic and abiotic stress conditions in plants. However, no detailed expression profile of AP2-ERF-like genes is available for B. oleracea.

ResultsIn the present study, 226 AP2-ERF TFs were identified from B. oleracea based on the available genome sequence. Based on sequence similarity, the AP2-ERF superfamily was classified into five groups DREB, ERF, AP2, RAV and Soloist and 15 subgroups. The identification, classification, phylogenetic construction, conserved motifs, chromosome distribution, functional annotation, expression patterns and interaction network were then predicted and analyzed. AP2-ERF transcription factor expression levels exhibited differences in response to varying abiotic stresses based on expressed sequence tags ESTs. BoCBF1a, 1b, 2, 3 and 4, which were highly conserved in Arabidopsis and B. rapa CBF-DREB genes families were well characterized. Expression analysis enabled elucidation of the molecular and genetic level expression patterns of cold tolerance CT and susceptible lines CS of cabbage and indicated that all BoCBF genes responded to abiotic stresses.

ConclusionsComprehensive analysis of the physiological functions and biological roles of AP2-ERF superfamily genes and BoCBF family genes in B. oleracea is required to fully elucidate AP2-ERF, which will provide rich resources and opportunities to understand abiotic stress tolerance in crops.

KeywordsBrassica oleracea AP2-ERF Classification Gene expression Abiotic stresses BoCBF genes Electronic supplementary materialThe online version of this article doi:10.1186-1471-2164-15-422 contains supplementary material, which is available to authorized users.

Download fulltext PDF



Autor: Senthil Kumar Thamilarasan - Jong-In Park - Hee-Jeong Jung - Ill-Sup Nou

Fuente: https://link.springer.com/



DESCARGAR PDF




Documentos relacionados