Os09g0563300

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The rice Os09g0563300 was reported as TCD9 in 2014 [1] by researchers from China.

Annotated Information

Figure 6. Subcellular localization of pMON530-SPTCD9-GFP protein.[1].

Gene Symbol

  • Os09g0563300 <=> OsTCD9,TCD9

Function

  • TCD9 encoding α-subunit of Cpn60 protein (Cpn60α),
  • TCD9 plays a crucial role in chloroplast development at early leaf stage of rice.

Phenotypic analysis

  • The leaves of tcd9 mutant appeared albino phenotype before the 3-leaf stage when grown below 24 ◦C, but the 4th leaves gradu- ally turned green and appeared normal green after the 5-leaf stage even at 20 ◦ C (Fig. 1A).
  • The color and height of tcd9 mutant was no discrepancy with wild type when grown beyond 28 ◦C (Fig. 1A). Similarly, the contents of Chl a, Chl b, total Chl and carotenoid (Car) in tcd9 plants before the 3-leaf stage at 20 ◦C were drastically lower than those in the wild type plants and itself grown beyond 28 ◦C(Suppl. Table S3); however, the contents were comparable between wild type plants and tcd9 plant grown at 32 ◦ C (Fig. 1B).
  • The observations suggested the thermo-sensitivity of albino phenotype in the mutant as 7436S, Fan5, v1, v2 and v3

Expression

  • qRT-PCR analysis showed that TCD9 exhibited the high expression in all tested tissues,especially in young leaves.

Subcellular localization

  • Subcellular localization analysis showed that the GFP fluorescence was colocalized with chlorophyll autofluorescence, showing that TCD9 was a chloroplast-localized protein.


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Labs working on this gene

  • Development Center of Plant Germplasm Resources, College of Life and Environment Sciences, Shanghai Normal University, Shanghai 200234, China
  • The Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, 12 South Zhong-Guan Cun Street, Beijing 100081, China
  • Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China

References

  1. 1.0 1.1 Jiang Q, Mei J, Gong XD, Xu JL, Zhang JH, Teng S, Lin DZ, Dong YJ. Importance of the rice TCD9 encoding α subunit of chaperonin protein 60 (Cpn60α) for the chloroplast development during the early leaf stage. Plant Sci. 2014 Feb;215-216:172-9. doi: 10.1016/j.plantsci.2013.11.003. Epub 2013 Nov 18. PubMed PMID: 24388528.

Structured Information