Rice FLOURY SHRUNKEN ENDOSPERM 5 Encodes a Putative Plant Organelle RNA Recognition Protein that Is Required for cis-Splicing of Mitochondrial nad4 Intron 1

Wang, Liang; Zhang, Wenwei; Liu, Shijia; Tian, Yunlu; Liu, Xi; Yan, Haigang; Cai, Yuchen; Teng, Xuan; Dong, Hui; Chen, Rongbo; Jiang, Xiaokang; Wang, Yihua; Wan, Jianmin

doi:10.1186/s12284-021-00463-2

Cited by 8 publications

(2 citation statements)

References 65 publications

(96 reference statements)

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“…Galactolipid as one kind of lipids is essential for amyloplast development. Mutations of ENLARGED STARCH GRAIN1 (ESG1), FLOURY SHRUNKEN ENDOSPERM1 (FSE1), and FLOURY ENDOSPERM19 (FLO19) caused defective galactolipid synthesis, thereby showing a floury endosperm phenotype (Lei et al., 2022; Long et al., 2018; Wang, Ren, et al., 2021; Wang, Zhang, et al., 2021). The previous papers have presented the change in lipid and carbohydrates resulted in the chalkiness and floury endosperm in rice.…”

Section: Discussionmentioning

confidence: 99%

Triacylglycerol lipase, OsSG34, plays an important role in grain shape and appearance quality in rice

Jin,

Chen,

Khan

et al. 2023

The Plant Journal

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SUMMARYOptimal grain‐appearance quality is largely determined by grain size. To date, dozens of grain size‐related genes have been identified. However, the regulatory mechanism of slender grain formation is not fully clear. We identified the OsSG34 gene by map‐based cloning. A 9‐bp deletion on 5’‐untranslated region of OsSG34, which resulted in the expression difference between the wild‐type and sg34 mutant, led to the slender grains and good transparency in sg34 mutant. OsSG34 as an α/β fold triacylglycerol lipase affected the triglyceride content directly, and the components of cell wall indirectly, especially the lignin between the inner and outer lemmas in rice grains, which could affect the change in grain size by altering cell proliferation and expansion, while the change in starch content and starch granule arrangement in endosperm could affect the grain‐appearance quality. Moreover, the OsERF71 was identified to directly bind to cis‐element on the mutant site, thereby regulating the OsSG34 expression. Knockout of three OsSG34 homologous genes resulted in slender grains as well. The study demonstrated OsSG34, involved in lipid metabolism, affected grain size and quality. Our findings suggest that the OsSG34 gene could be used in rice breeding for high yield and good grain‐appearance quality via marker‐assisted selection and gene‐editing approaches.

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Section: Discussionmentioning

confidence: 99%

Triacylglycerol lipase, OsSG34, plays an important role in grain shape and appearance quality in rice

Jin,

Chen,

Khan

et al. 2023

The Plant Journal

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“…WTF9 is required for the splicing of introns in mitochondrial rpl2 and ccmFc in Arabidopsis [97]. OsPORR1 is associated with nad4 intron 1 splicing in rice mitochondria [98].…”

Section: Other Proteinsmentioning

confidence: 99%

Research Progress of Group II Intron Splicing Factors in Land Plant Mitochondria

Li,

Jiang

2024

Genes

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Mitochondria are important organelles that provide energy for the life of cells. Group II introns are usually found in the mitochondrial genes of land plants. Correct splicing of group II introns is critical to mitochondrial gene expression, mitochondrial biological function, and plant growth and development. Ancestral group II introns are self-splicing ribozymes that can catalyze their own removal from pre-RNAs, while group II introns in land plant mitochondria went through degenerations in RNA structures, and thus they lost the ability to self-splice. Instead, splicing of these introns in the mitochondria of land plants is promoted by nuclear- and mitochondrial-encoded proteins. Many proteins involved in mitochondrial group II intron splicing have been characterized in land plants to date. Here, we present a summary of research progress on mitochondrial group II intron splicing in land plants, with a major focus on protein splicing factors and their probable functions on the splicing of mitochondrial group II introns.

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Genetic control of grain appearance quality in rice

Zhao

Zhang

et al. 2022

Biotechnology Advances

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Rice FLOURY SHRUNKEN ENDOSPERM 5 Encodes a Putative Plant Organelle RNA Recognition Protein that Is Required for cis-Splicing of Mitochondrial nad4 Intron 1

Cited by 8 publications

References 65 publications

Triacylglycerol lipase, OsSG34, plays an important role in grain shape and appearance quality in rice

Triacylglycerol lipase, OsSG34, plays an important role in grain shape and appearance quality in rice

Research Progress of Group II Intron Splicing Factors in Land Plant Mitochondria

Genetic control of grain appearance quality in rice

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