title: Transcriptome analysis of newly classified bZIP transcription factors of Brassica rapa in cold stress response.
abstract: Plant bZIP transcription factors play crucial roles in biological processes. In this study, 136 putative bZIP transcription members were identified in Brassica rapa. The bZIP family can be divided into nine groups according to the specific amino acid rich domain in B. rapa and Arabidopsis thaliana. To screen the cold stress responsive BrbZIP genes, we evaluated whether the transcription patterns of the BrbZIP genes were enhanced by cold treatment in the inbred lines, Chiifu and Kenshin, by microarray data analysis and qRT-PCR. The expression level of six genes increased significantly in Kenshin, but these genes were unchanged in Chiifu. These findings suggest that the six genes that encoded proteins containing N-rich regions might be involved in cold stress response. The results presented herein provide valuable information regarding the molecular basis of the bZIP transcription factors and their potential function in regulation growth and development, particularly in cold stress response.
authors: Department of Horticulture, Sunchon National University, 255 Jungangro, Suncheon, Jeonnam 540-950, Republic of Korea. Electronic address: usename@hanmail.net.
authors: Indeok
authors: I
authors: Hwang
authors: Department of Horticulture, Sunchon National University, 255 Jungangro, Suncheon, Jeonnam 540-950, Republic of Korea. Electronic address: my-656@hanmail.net.
authors: Hee-Jeong
authors: HJ
authors: Jung
authors: Department of Horticulture, Sunchon National University, 255 Jungangro, Suncheon, Jeonnam 540-950, Republic of Korea. Electronic address: jipark@sunchon.ac.kr.
authors: Jong-In
authors: JI
authors: Park
authors: Department of Plant Science, Plant Genomics and Breeding Institute, Research Institute for Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea. Electronic address: tjyang@snu.ac.kr.
authors: Tae-Jin
authors: TJ
authors: Yang
authors: Department of Horticulture, Sunchon National University, 255 Jungangro, Suncheon, Jeonnam 540-950, Republic of Korea. Electronic address: nis@sunchon.ac.kr.
authors: Ill-Sup
authors: IS
authors: Nou
mesh_terms: D050976:Basic-Leucine Zipper Transcription Factors / Q000737:chemistry / Q000145:classification / Q000235:genetics*; D029741:Brassica rapa / Q000235:genetics* / Q000378:metabolism; D058639:Cold-Shock Response / Q000235:genetics*; D016350:Leucine Zippers; D010940:Plant Proteins / Q000737:chemistry / Q000145:classification / Q000235:genetics*; D059467:Transcriptome
chemical_list: D050976:Basic-Leucine Zipper Transcription Factors; D010940:Plant Proteins
keywords: Cold stress; LCRs; N-rich domain; bZIP transcription factor