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Author Lin D., Zheng K., Liu Z., Li Z., Teng S., Xu J., Dong Y.
Title Rice <i>TCM1</i> Encoding a Component of the TAC Complex is Required for Chloroplast Development under Cold Stress.
Abstract:
Transcriptionally active chromosome (TAC) is a component of protein-DNA complexes with RNA polymerase activity, expressed in the plastid. However, the function of rice TAC proteins is still poorly understood. In this paper, we first report the identification of a new rice ( L.) mutant () in the gene encoding TAC. The mutant displayed an albino phenotype and malformed chloroplasts before the three-leaf stage when grown at low temperatures (20°C) and a normal phenotype at higher temperatures (>28°C). Map-based cloning revealed that encodes a novel chloroplast-targeted TAC protein in rice. In addition, the transcript levels of all examined plastid-encoded polymerase (PEP)-dependent genes were clearly downregulated in mutants at low temperatures, although partially recovering levels were obtained at high temperatures, comparable to wild-type plants. Furthermore, the transcripts were ubiquitously expressed in all examined tissues, with high expression levels in green tissues. The data suggest that the rice nuclear-encoded TAC protein TCM1 is essential for proper chloroplast development and maintaining PEP activity under cold stress.
Journal Plant Genome
Country unknown
Volume 11(1)
Pages
Year 2018
PubMed ID 29505628
PubMed Central ID -
DOI 10.3835/plantgenome2016.07.0065
URL -
Relation
Gene CAB1R FGL PSAA PSBA RBCL RBCS RPOB RPOTP ST1 TCM1 V2 V3 YGL1 YGL10 _ _ _
INSD -
Strain Wild Core Collection -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
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Stages in Each Organ
- Muant Lines (Gene)
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Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
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