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The rice PLATZ protein SHORT GRAIN6 determines grain size by regulating spikelet hull cell division
Grain size is a major determinant of cereal grain yields; however, the relevant regulatory mechanisms controlling this trait have not been fully elucidated. The rice (Oryza sativa) mutant short grain6 (sg6) was identified based on its reduced grain length and weight. Here, we functionally characteri...
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Published in: | Journal of integrative plant biology 2020-06, Vol.62 (6), p.847-864 |
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description | Grain size is a major determinant of cereal grain yields; however, the relevant regulatory mechanisms controlling this trait have not been fully elucidated. The rice (Oryza sativa) mutant short grain6 (sg6) was identified based on its reduced grain length and weight. Here, we functionally characterized the role of SG6 in determining grain size through the regulation of spikelet hull cell division. SG6 encodes a previously uncharacterized plant AT‐rich sequence and zinc‐binding (PLATZ) protein that is ubiquitously localized throughout the cell and is preferentially expressed in the early developing panicles but not in the endosperm. The overexpression of SG6 resulted in significantly larger and heavier grains, as well as increased plant heights, which is consistent with its elevated spikelet hull cell division rate. Yeast two‐hybrid analyses revealed that SG6 interacts with the core cell cycle machinery DP protein and several other putative cell division regulators, consistent with our transcriptomic analysis, which showed that SG6 activates the expression of many DNA replication and cell‐cycle‐related genes. These results confirm the crucial role of SG6 in determining grain size by regulating spikelet hull cell division and provide clues for understanding the functions of PLATZ family proteins and the network regulating cereal grain size.
We functionally characterized rice Short Grain 6 (SG6), a previously uncharacterized plant AT‐rich sequence and zinc‐binding protein, in determining the grain size by regulating spikelet hull cell division. Our work provided the informative clues for understanding the functions of PLATZ family proteins and the molecular network regulating cereal grain size. |
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We functionally characterized rice Short Grain 6 (SG6), a previously uncharacterized plant AT‐rich sequence and zinc‐binding protein, in determining the grain size by regulating spikelet hull cell division. Our work provided the informative clues for understanding the functions of PLATZ family proteins and the molecular network regulating cereal grain size.</description><identifier>ISSN: 1672-9072</identifier><identifier>EISSN: 1744-7909</identifier><identifier>DOI: 10.1111/jipb.12851</identifier><identifier>PMID: 31207036</identifier><language>eng</language><publisher>China (Republic : 1949- ): Wiley Subscription Services, Inc</publisher><subject>Cell cycle ; Cell Cycle - genetics ; Cell Division ; Cell size ; Crop yield ; Deoxyribonucleic acid ; DNA ; DNA biosynthesis ; DP protein ; Endosperm ; Gene expression ; Gene Expression Profiling ; Gene Expression Regulation, Plant ; Grain size ; Organ Size ; Oryza - anatomy & histology ; Oryza - cytology ; Oryza - genetics ; Oryza - ultrastructure ; Oryza sativa ; Particle size ; Plant Proteins - genetics ; Plant Proteins - metabolism ; Plants, Genetically Modified ; Protein Binding ; Proteins ; Regulators ; Regulatory mechanisms (biology) ; Rice ; Seeds - anatomy & histology ; Seeds - cytology ; Seeds - ultrastructure ; Yeasts ; Zinc plating</subject><ispartof>Journal of integrative plant biology, 2020-06, Vol.62 (6), p.847-864</ispartof><rights>2019 Institute of Botany, Chinese Academy of Sciences</rights><rights>2019 Institute of Botany, Chinese Academy of Sciences.</rights><rights>2020 Institute of Botany, Chinese Academy of Sciences</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4591-6f85173c643f4fcb172a5d80799d2bd1bf894e0e1222263a65f55880d391f113</citedby><cites>FETCH-LOGICAL-c4591-6f85173c643f4fcb172a5d80799d2bd1bf894e0e1222263a65f55880d391f113</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31207036$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhou, Shi‐Rong</creatorcontrib><creatorcontrib>Xue, Hong‐Wei</creatorcontrib><title>The rice PLATZ protein SHORT GRAIN6 determines grain size by regulating spikelet hull cell division</title><title>Journal of integrative plant biology</title><addtitle>J Integr Plant Biol</addtitle><description>Grain size is a major determinant of cereal grain yields; however, the relevant regulatory mechanisms controlling this trait have not been fully elucidated. The rice (Oryza sativa) mutant short grain6 (sg6) was identified based on its reduced grain length and weight. Here, we functionally characterized the role of SG6 in determining grain size through the regulation of spikelet hull cell division. SG6 encodes a previously uncharacterized plant AT‐rich sequence and zinc‐binding (PLATZ) protein that is ubiquitously localized throughout the cell and is preferentially expressed in the early developing panicles but not in the endosperm. The overexpression of SG6 resulted in significantly larger and heavier grains, as well as increased plant heights, which is consistent with its elevated spikelet hull cell division rate. Yeast two‐hybrid analyses revealed that SG6 interacts with the core cell cycle machinery DP protein and several other putative cell division regulators, consistent with our transcriptomic analysis, which showed that SG6 activates the expression of many DNA replication and cell‐cycle‐related genes. These results confirm the crucial role of SG6 in determining grain size by regulating spikelet hull cell division and provide clues for understanding the functions of PLATZ family proteins and the network regulating cereal grain size.
We functionally characterized rice Short Grain 6 (SG6), a previously uncharacterized plant AT‐rich sequence and zinc‐binding protein, in determining the grain size by regulating spikelet hull cell division. Our work provided the informative clues for understanding the functions of PLATZ family proteins and the molecular network regulating cereal grain size.</description><subject>Cell cycle</subject><subject>Cell Cycle - genetics</subject><subject>Cell Division</subject><subject>Cell size</subject><subject>Crop yield</subject><subject>Deoxyribonucleic acid</subject><subject>DNA</subject><subject>DNA biosynthesis</subject><subject>DP protein</subject><subject>Endosperm</subject><subject>Gene expression</subject><subject>Gene Expression Profiling</subject><subject>Gene Expression Regulation, Plant</subject><subject>Grain size</subject><subject>Organ Size</subject><subject>Oryza - anatomy & histology</subject><subject>Oryza - cytology</subject><subject>Oryza - genetics</subject><subject>Oryza - ultrastructure</subject><subject>Oryza sativa</subject><subject>Particle size</subject><subject>Plant Proteins - genetics</subject><subject>Plant Proteins - metabolism</subject><subject>Plants, Genetically Modified</subject><subject>Protein Binding</subject><subject>Proteins</subject><subject>Regulators</subject><subject>Regulatory mechanisms (biology)</subject><subject>Rice</subject><subject>Seeds - anatomy & histology</subject><subject>Seeds - cytology</subject><subject>Seeds - ultrastructure</subject><subject>Yeasts</subject><subject>Zinc plating</subject><issn>1672-9072</issn><issn>1744-7909</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kMtOwzAQRS0E4r3hA5AlNggp4LGTOF6WikdRBQiyYmPlMSkuaVLsBFS-HpcCCxbMwrbkozMzl5ADYKfg62xq5vkp8CSCNbINMgwDqZha9-9Y8kAxybfIjnNTxkTCYr5JtgRwJpmIt0mRPiO1pkB6Px6kT3Ru2w5NQx-v7x5SevUwGN3GtMQO7cw06OjEZv7XmQ-k-YJanPR11plmQt3cvGCNHX3u65oW6I_SvBln2maPbFRZ7XD_-94l6eVFOrwOxndXo-FgHBRhpCCIK7-BFEUciiqsihwkz6IyYVKpkucl5FWiQmQI3FcssjiqoihJWCkUVABilxyvtH6H1x5dp2fGLQfJGmx7pzkPeQISeOTRoz_otO1t44fTPPQNI8XFUniyogrbOmex0nNrZpldaGB6mbxeJq-_kvfw4beyz2dY_qI_UXsAVsC7qXHxj0rfjO7PV9JPN8KLWQ</recordid><startdate>202006</startdate><enddate>202006</enddate><creator>Zhou, Shi‐Rong</creator><creator>Xue, Hong‐Wei</creator><general>Wiley Subscription Services, Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7T7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>202006</creationdate><title>The rice PLATZ protein SHORT GRAIN6 determines grain size by regulating spikelet hull cell division</title><author>Zhou, Shi‐Rong ; Xue, Hong‐Wei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4591-6f85173c643f4fcb172a5d80799d2bd1bf894e0e1222263a65f55880d391f113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Cell cycle</topic><topic>Cell Cycle - genetics</topic><topic>Cell Division</topic><topic>Cell size</topic><topic>Crop yield</topic><topic>Deoxyribonucleic acid</topic><topic>DNA</topic><topic>DNA biosynthesis</topic><topic>DP protein</topic><topic>Endosperm</topic><topic>Gene expression</topic><topic>Gene Expression Profiling</topic><topic>Gene Expression Regulation, Plant</topic><topic>Grain size</topic><topic>Organ Size</topic><topic>Oryza - anatomy & histology</topic><topic>Oryza - cytology</topic><topic>Oryza - genetics</topic><topic>Oryza - ultrastructure</topic><topic>Oryza sativa</topic><topic>Particle size</topic><topic>Plant Proteins - genetics</topic><topic>Plant Proteins - metabolism</topic><topic>Plants, Genetically Modified</topic><topic>Protein Binding</topic><topic>Proteins</topic><topic>Regulators</topic><topic>Regulatory mechanisms (biology)</topic><topic>Rice</topic><topic>Seeds - anatomy & histology</topic><topic>Seeds - cytology</topic><topic>Seeds - ultrastructure</topic><topic>Yeasts</topic><topic>Zinc plating</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhou, Shi‐Rong</creatorcontrib><creatorcontrib>Xue, Hong‐Wei</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of integrative plant biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhou, Shi‐Rong</au><au>Xue, Hong‐Wei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The rice PLATZ protein SHORT GRAIN6 determines grain size by regulating spikelet hull cell division</atitle><jtitle>Journal of integrative plant biology</jtitle><addtitle>J Integr Plant Biol</addtitle><date>2020-06</date><risdate>2020</risdate><volume>62</volume><issue>6</issue><spage>847</spage><epage>864</epage><pages>847-864</pages><issn>1672-9072</issn><eissn>1744-7909</eissn><abstract>Grain size is a major determinant of cereal grain yields; however, the relevant regulatory mechanisms controlling this trait have not been fully elucidated. The rice (Oryza sativa) mutant short grain6 (sg6) was identified based on its reduced grain length and weight. Here, we functionally characterized the role of SG6 in determining grain size through the regulation of spikelet hull cell division. SG6 encodes a previously uncharacterized plant AT‐rich sequence and zinc‐binding (PLATZ) protein that is ubiquitously localized throughout the cell and is preferentially expressed in the early developing panicles but not in the endosperm. The overexpression of SG6 resulted in significantly larger and heavier grains, as well as increased plant heights, which is consistent with its elevated spikelet hull cell division rate. Yeast two‐hybrid analyses revealed that SG6 interacts with the core cell cycle machinery DP protein and several other putative cell division regulators, consistent with our transcriptomic analysis, which showed that SG6 activates the expression of many DNA replication and cell‐cycle‐related genes. These results confirm the crucial role of SG6 in determining grain size by regulating spikelet hull cell division and provide clues for understanding the functions of PLATZ family proteins and the network regulating cereal grain size.
We functionally characterized rice Short Grain 6 (SG6), a previously uncharacterized plant AT‐rich sequence and zinc‐binding protein, in determining the grain size by regulating spikelet hull cell division. Our work provided the informative clues for understanding the functions of PLATZ family proteins and the molecular network regulating cereal grain size.</abstract><cop>China (Republic : 1949- )</cop><pub>Wiley Subscription Services, Inc</pub><pmid>31207036</pmid><doi>10.1111/jipb.12851</doi><tpages>17</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Cell cycle Cell Cycle - genetics Cell Division Cell size Crop yield Deoxyribonucleic acid DNA DNA biosynthesis DP protein Endosperm Gene expression Gene Expression Profiling Gene Expression Regulation, Plant Grain size Organ Size Oryza - anatomy & histology Oryza - cytology Oryza - genetics Oryza - ultrastructure Oryza sativa Particle size Plant Proteins - genetics Plant Proteins - metabolism Plants, Genetically Modified Protein Binding Proteins Regulators Regulatory mechanisms (biology) Rice Seeds - anatomy & histology Seeds - cytology Seeds - ultrastructure Yeasts Zinc plating |
title | The rice PLATZ protein SHORT GRAIN6 determines grain size by regulating spikelet hull cell division |
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