Os01g0614900

The rice Os01g0614900 was reported as OsATG7 in 2014 by researchers from Japan.

Annotated Information

Figure 1. The Osatg7-1 mutant exhibits a sterility phenotype...

Gene Symbol

• Os01g0614900 <=> ATG7,OsATG7

Function

• OsATG7 is required for autophagy-dependent lipid metabolism in rice postmeiotic anther development

Phenotypic analysis

• The rates of seed germination and vegetative growth of the Osatg7-1 mutant plants were comparable to those of wild type when grown in a greenhouse or paddy field.
• By contrast, the Osatg7-1 plants grown in a paddy field showed slower heading (Fig. 1C) and flowering accompanying the delay of anther development including pollen maturation (data not shown), and had slightly larger spikelets (Fig. 1E and F).
• Surprisingly, unlike Arabidopsis atg mutants, the Osatg7-1 mutant exhibited a sterile phenotype (Fig. 1D) and limited anther dehiscence under normal growth conditions.
• The stomium, an essential structure for anther dehiscence, 27 did not show significant difference between the wild type and the mutant (data not shown), suggesting that the defects in anther dehiscence is attributed to other critical steps. These Osatg7-1 mutant phenotypes were complemented by the expression of OsATG7 (Fig. S3B–S3D). We also identified another mutant allele (Osatg7-2) of OsATG7 (3A-03442; cv Donjing) and a mutant line defective in OsATG9 (2D-00675; cv Hwayoung) from the T-DNA-tag lines of the POSTECH Biotech Center (Kyungbuk, Korea), both of which were sterile, indicating that autophagy plays critical roles in rice reproductive development.
• Overall, the present findings using the autophagy-defective mutants demonstrate the important role of autophagy in plant reproductive development and crop production.

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Labs working on this gene

• Department of Applied Biological Science; Tokyo University of Science; Noda, Chiba Japan
• Research Institute for Science and Technology
• Tokyo University of Science;Noda, Chiba Japan
• School of Bioscience and Biotechnology; Tokyo University of Technology; Hachioji, Tokyo Japan
• Plant Genetics Laboratory; National Institute of Genetics; Mishima, Shizuoka Japan
• Department of Chemical Biological Science; Faculty of Science; Japan Women’s University; Bunkyo-ku, Tokyo Japan;
• Faculty of Bioscience; Nagahama Institute of Bio-Science and Technology; Shiga, Japan;
• Metabolomic Function Research Group; RIKEN Center for Sustainable Resource Science; Yokohama, Kanagawa Japan;
• Environmental Stress Research Unit; Division of Plant Sciences; National Institute of Agrobiological Sciences; Tsukuba, Ibaraki Japan;
• Department of Applied Plant Science; Graduate School of Agricultural Sciences; Tohoku University; Sendai, Miyagi, Japan;
• Agrogenomics Research Center; National Institute of Agrobiological Sciences; Tsukuba, Ibaraki Japan;
• Department of Biological Science and Technology; Tokyo University of Science; Katsushika, Tokyo Japan;
• Graduate School of Pharmaceutical Sciences; Chiba University; Chiba, Chiba Japan