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A novel J8 domain gene,IbJ8, inIpomoea batatas (L). Lam. |
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| Authors: | Sun-Hyung Kim Tatsuro Hamada Ju-Sung Kim Jin-Sung Hong |
| Institution: | 1. Research Institute of Bioresource and Biotechnology, Ishikawa Prefectural University, 921-8836, Ishikawa, Japan 2. Environmental Biotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, 305-333, Daejeon, Korea 3. Graduate School of Life and Environmental Sciences, University of Tsukuba, 305-8572, Ibaraki, Japan 4. Plant Virus Genbank, Division of Environmental and Life Sciences, Seoul Women’s University, 139-774, Seoul, Korea |
| Abstract: | Sweet potato cDNAs that encode IbJ8, the smallest known J-domain protein, were isolated and characterized. This genome has at least two copies ofIbJ8, which is expressed preferentially in the leaves, flowers, petioles, and stems. Spatial and temporal patterns were studied at different developmental stages, and expression was greater in younger leaves than in older ones. Moreover, expression in roots that arose from single-leaf cuttings was lower at 15, 20, and 30 d than at 40 d, and then the signal was undetectable at 60 d after planting. These results suggest thatIbJ8 expression may be related to the organ age or developmental stage. |
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