Profiling gene expression in citrus fruit calyx abscission zone (AZ-C) treated with ethylene.
Identifieur interne : 000484 ( Main/Merge ); précédent : 000483; suivant : 000485Profiling gene expression in citrus fruit calyx abscission zone (AZ-C) treated with ethylene.
Auteurs : Chunzhen Cheng [République populaire de Chine] ; Lingyun Zhang [République populaire de Chine] ; Xuelian Yang [République populaire de Chine] ; Guangyan Zhong [République populaire de Chine]Source :
- Molecular genetics and genomics : MGG [ 1617-4623 ] ; 2015.
English descriptors
- KwdEn :
- MESH :
- chemical , administration & dosage : Ethylenes.
- genetics : Citrus, Flowers.
- metabolism : Mitochondria, Plant Growth Regulators.
- Electron Transport, Gene Expression Profiling, Genes, Plant, Photosynthesis.
Abstract
On-tree storage and harvesting of mature fruit account for a large proportion of cost in the production of citrus, and a reduction of the cost would not be achieved without a thorough understanding of the mechani sm of the mature fruit abscission. Genome-wide gene expression changes in ethylene-treated fruit calyx abscission zone (AZ-C) of Citrus sinensis cv. Olinda were therefore investigated using a citrus genome array representing up to 33,879 citrus transcripts. In total, 1313 and 1044 differentially regulated genes were identified in AZ-C treated with ethylene for 4 and 24 h, respectively. The results showed that mature citrus fruit abscission commenced with the activation of ethylene signal transduction pathway that led to the activation of ethylene responsive transcription factors and the subsequent transcriptional regulation of a large set of ethylene responsive genes. Significantly down-regulated genes included those of starch/sugar biosynthesis, transportation of water and growth promoting hormone synthesis and signaling, whereas significantly up-regulated genes were those involved in defense, cell wall degradation, and secondary metabolism. Our data unraveled the underlying mechanisms of some known important biochemical events occurring at AZ-C and should provide informative suggestions for future manipulation of the events to achieve a controllable abscission for mature citrus fruit.
DOI: 10.1007/s00438-015-1054-2
PubMed: 25948248
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Sciences, Guizhou Normal University Guizhou, Guiyang, 550001, People's Republic of China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>School of Geographic and Environmental Sciences, Guizhou Normal University Guizhou, Guiyang, 550001</wicri:regionArea><wicri:noRegion>550001</wicri:noRegion></affiliation></author><author><name sortKey="Yang, Xuelian" sort="Yang, Xuelian" uniqKey="Yang X" first="Xuelian" last="Yang">Xuelian Yang</name><affiliation wicri:level="1"><nlm:affiliation>College of Agriculture, Guizhou University Guiyang, Guizhou, 550025, People's Republic of China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Agriculture, Guizhou University Guiyang, Guizhou, 550025</wicri:regionArea><wicri:noRegion>550025</wicri:noRegion></affiliation></author><author><name sortKey="Zhong, Guangyan" sort="Zhong, Guangyan" uniqKey="Zhong G" first="Guangyan" last="Zhong">Guangyan Zhong</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences Guangzhou, Guangdong, 510640, People's Republic of China. gy_zhong@163.com.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences Guangzhou, Guangdong, 510640</wicri:regionArea><wicri:noRegion>510640</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2015">2015</date><idno type="RBID">pubmed:25948248</idno><idno type="pmid">25948248</idno><idno type="doi">10.1007/s00438-015-1054-2</idno><idno type="wicri:Area/PubMed/Corpus">000130</idno><idno type="wicri:Area/PubMed/Curation">000130</idno><idno type="wicri:Area/PubMed/Checkpoint">000130</idno><idno type="wicri:Area/Ncbi/Merge">001B20</idno><idno type="wicri:Area/Ncbi/Curation">001B20</idno><idno 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last="Zhang">Lingyun Zhang</name><affiliation wicri:level="1"><nlm:affiliation>School of Geographic and Environmental Sciences, Guizhou Normal University Guizhou, Guiyang, 550001, People's Republic of China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>School of Geographic and Environmental Sciences, Guizhou Normal University Guizhou, Guiyang, 550001</wicri:regionArea><wicri:noRegion>550001</wicri:noRegion></affiliation></author><author><name sortKey="Yang, Xuelian" sort="Yang, Xuelian" uniqKey="Yang X" first="Xuelian" last="Yang">Xuelian Yang</name><affiliation wicri:level="1"><nlm:affiliation>College of Agriculture, Guizhou University Guiyang, Guizhou, 550025, People's Republic of China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Agriculture, Guizhou University Guiyang, Guizhou, 550025</wicri:regionArea><wicri:noRegion>550025</wicri:noRegion></affiliation></author><author><name sortKey="Zhong, Guangyan" sort="Zhong, Guangyan" uniqKey="Zhong G" first="Guangyan" last="Zhong">Guangyan Zhong</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences Guangzhou, Guangdong, 510640, People's Republic of China. gy_zhong@163.com.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences Guangzhou, Guangdong, 510640</wicri:regionArea><wicri:noRegion>510640</wicri:noRegion></affiliation></author></analytic><series><title level="j">Molecular genetics and genomics : MGG</title><idno type="eISSN">1617-4623</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Citrus (genetics)</term><term>Electron Transport</term><term>Ethylenes (administration & dosage)</term><term>Flowers (genetics)</term><term>Gene Expression Profiling</term><term>Genes, Plant</term><term>Mitochondria (metabolism)</term><term>Photosynthesis</term><term>Plant Growth Regulators (metabolism)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="administration & dosage" xml:lang="en"><term>Ethylenes</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Citrus</term><term>Flowers</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Mitochondria</term><term>Plant Growth Regulators</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Electron Transport</term><term>Gene Expression Profiling</term><term>Genes, Plant</term><term>Photosynthesis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">On-tree storage and harvesting of mature fruit account for a large proportion of cost in the production of citrus, and a reduction of the cost would not be achieved without a thorough understanding of the mechani sm of the mature fruit abscission. Genome-wide gene expression changes in ethylene-treated fruit calyx abscission zone (AZ-C) of Citrus sinensis cv. Olinda were therefore investigated using a citrus genome array representing up to 33,879 citrus transcripts. In total, 1313 and 1044 differentially regulated genes were identified in AZ-C treated with ethylene for 4 and 24 h, respectively. The results showed that mature citrus fruit abscission commenced with the activation of ethylene signal transduction pathway that led to the activation of ethylene responsive transcription factors and the subsequent transcriptional regulation of a large set of ethylene responsive genes. Significantly down-regulated genes included those of starch/sugar biosynthesis, transportation of water and growth promoting hormone synthesis and signaling, whereas significantly up-regulated genes were those involved in defense, cell wall degradation, and secondary metabolism. Our data unraveled the underlying mechanisms of some known important biochemical events occurring at AZ-C and should provide informative suggestions for future manipulation of the events to achieve a controllable abscission for mature citrus fruit.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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