Novel amplification and transcriptional activity of chorion genes in Drosophila melanogaster follicle cells
Single-copy chorion genes coding for egg shell proteins are amplified in the follicle cells of Drosophila melanogaster egg chambers. Chromatin spreads of appropriately staged follicle cells reveal complex, multi-forked chromosomal structures in which one chromatin strand branches into two, which the...
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| Veröffentlicht in: | Cell 1983-06, Vol.33 (2), p.543-553 |
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| creator | Osheim, Yvonne Nelson Miller, O.L. |
| description | Single-copy chorion genes coding for egg shell proteins are amplified in the follicle cells of Drosophila melanogaster egg chambers. Chromatin spreads of appropriately staged follicle cells reveal complex, multi-forked chromosomal structures in which one chromatin strand branches into two, which themselves branch out, and so on. In one micrograph, 13 strands originating from a single strand were observed. These structures can account for the maximal amplification occurring in the center of the domain, where the major chorion genes are located, and the decreasing amplification of flanking sequences to both sides. The amplification, high transcriptional rate, stage-specific expression, and correlation with known molecular sizes have allowed the putative identification of the single-copy, major chorion genes on the X chromosome and on chromosome III. |
| doi_str_mv | 10.1016/0092-8674(83)90435-X |
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Chromatin spreads of appropriately staged follicle cells reveal complex, multi-forked chromosomal structures in which one chromatin strand branches into two, which themselves branch out, and so on. In one micrograph, 13 strands originating from a single strand were observed. These structures can account for the maximal amplification occurring in the center of the domain, where the major chorion genes are located, and the decreasing amplification of flanking sequences to both sides. The amplification, high transcriptional rate, stage-specific expression, and correlation with known molecular sizes have allowed the putative identification of the single-copy, major chorion genes on the X chromosome and on chromosome III.</description><identifier>ISSN: 0092-8674</identifier><identifier>EISSN: 1097-4172</identifier><identifier>DOI: 10.1016/0092-8674(83)90435-X</identifier><identifier>PMID: 6407758</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>animal breeding ; animal genetics ; animal reproduction ; Animals ; arthropods ; Chorion - analysis ; Chromatin - ultrastructure ; Drosophila melanogaster ; Egg Proteins - genetics ; Egg Shell ; entomology ; Female ; Gene Amplification ; Microscopy, Electron ; Transcription, Genetic ; X Chromosome - analysis</subject><ispartof>Cell, 1983-06, Vol.33 (2), p.543-553</ispartof><rights>1983</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c524t-8764e0e2dce2baacb0ab4bb2a3cd9d8a7da3d33c22bd5006343adaed9b5fc68c3</citedby><cites>FETCH-LOGICAL-c524t-8764e0e2dce2baacb0ab4bb2a3cd9d8a7da3d33c22bd5006343adaed9b5fc68c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/009286748390435X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/6407758$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Osheim, Yvonne Nelson</creatorcontrib><creatorcontrib>Miller, O.L.</creatorcontrib><title>Novel amplification and transcriptional activity of chorion genes in Drosophila melanogaster follicle cells</title><title>Cell</title><addtitle>Cell</addtitle><description>Single-copy chorion genes coding for egg shell proteins are amplified in the follicle cells of Drosophila melanogaster egg chambers. Chromatin spreads of appropriately staged follicle cells reveal complex, multi-forked chromosomal structures in which one chromatin strand branches into two, which themselves branch out, and so on. In one micrograph, 13 strands originating from a single strand were observed. These structures can account for the maximal amplification occurring in the center of the domain, where the major chorion genes are located, and the decreasing amplification of flanking sequences to both sides. The amplification, high transcriptional rate, stage-specific expression, and correlation with known molecular sizes have allowed the putative identification of the single-copy, major chorion genes on the X chromosome and on chromosome III.</description><subject>animal breeding</subject><subject>animal genetics</subject><subject>animal reproduction</subject><subject>Animals</subject><subject>arthropods</subject><subject>Chorion - analysis</subject><subject>Chromatin - ultrastructure</subject><subject>Drosophila melanogaster</subject><subject>Egg Proteins - genetics</subject><subject>Egg Shell</subject><subject>entomology</subject><subject>Female</subject><subject>Gene Amplification</subject><subject>Microscopy, Electron</subject><subject>Transcription, Genetic</subject><subject>X Chromosome - analysis</subject><issn>0092-8674</issn><issn>1097-4172</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1983</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU1v1DAQhi0EKkvhH4DwCcEhMPFH4lyQUPmUKjhApd6siT3ZGrxxsLMr9d-TsKse4TTSzDOv3nmHsac1vK6hbt4AdKIyTateGvmqAyV1dX2PbWro2krVrbjPNnfIQ_aolJ8AYLTWZ-ysUdC22mzYr6_pQJHjbophCA7nkEaOo-dzxrG4HKa1gwvh5nAI8y1PA3c3Ka_clkYqPIz8fU4lTTchIt9RxDFtscyU-ZBiDC4SdxRjecweDBgLPTnVc3b18cOPi8_V5bdPXy7eXVZOCzVXpm0UAQnvSPSIrgfsVd8LlM533mDrUXopnRC91wCNVBI9ku96PbjGOHnOXhx1p5x-76nMdhfK6gBHSvtiDejadML8F6xlp5UUcgHVEXTLoSXTYKccdphvbQ12fYZdk7Zr0tZI-_cZ9npZe3bS3_c78ndLp_SX-fPjfMBkcZtDsVffBdQSRAOgYCXeHgla8joEyra4QKMjHzK52foU_m3hD1D2pdk</recordid><startdate>198306</startdate><enddate>198306</enddate><creator>Osheim, Yvonne Nelson</creator><creator>Miller, O.L.</creator><general>Elsevier Inc</general><scope>FBQ</scope><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>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>198306</creationdate><title>Novel amplification and transcriptional activity of chorion genes in Drosophila melanogaster follicle cells</title><author>Osheim, Yvonne Nelson ; Miller, O.L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c524t-8764e0e2dce2baacb0ab4bb2a3cd9d8a7da3d33c22bd5006343adaed9b5fc68c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1983</creationdate><topic>animal breeding</topic><topic>animal genetics</topic><topic>animal reproduction</topic><topic>Animals</topic><topic>arthropods</topic><topic>Chorion - analysis</topic><topic>Chromatin - ultrastructure</topic><topic>Drosophila melanogaster</topic><topic>Egg Proteins - genetics</topic><topic>Egg Shell</topic><topic>entomology</topic><topic>Female</topic><topic>Gene Amplification</topic><topic>Microscopy, Electron</topic><topic>Transcription, Genetic</topic><topic>X Chromosome - analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Osheim, Yvonne Nelson</creatorcontrib><creatorcontrib>Miller, O.L.</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Cell</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Osheim, Yvonne Nelson</au><au>Miller, O.L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Novel amplification and transcriptional activity of chorion genes in Drosophila melanogaster follicle cells</atitle><jtitle>Cell</jtitle><addtitle>Cell</addtitle><date>1983-06</date><risdate>1983</risdate><volume>33</volume><issue>2</issue><spage>543</spage><epage>553</epage><pages>543-553</pages><issn>0092-8674</issn><eissn>1097-4172</eissn><abstract>Single-copy chorion genes coding for egg shell proteins are amplified in the follicle cells of Drosophila melanogaster egg chambers. Chromatin spreads of appropriately staged follicle cells reveal complex, multi-forked chromosomal structures in which one chromatin strand branches into two, which themselves branch out, and so on. In one micrograph, 13 strands originating from a single strand were observed. These structures can account for the maximal amplification occurring in the center of the domain, where the major chorion genes are located, and the decreasing amplification of flanking sequences to both sides. The amplification, high transcriptional rate, stage-specific expression, and correlation with known molecular sizes have allowed the putative identification of the single-copy, major chorion genes on the X chromosome and on chromosome III.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>6407758</pmid><doi>10.1016/0092-8674(83)90435-X</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Cell, 1983-06, Vol.33 (2), p.543-553 |
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| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | animal breeding animal genetics animal reproduction Animals arthropods Chorion - analysis Chromatin - ultrastructure Drosophila melanogaster Egg Proteins - genetics Egg Shell entomology Female Gene Amplification Microscopy, Electron Transcription, Genetic X Chromosome - analysis |
| title | Novel amplification and transcriptional activity of chorion genes in Drosophila melanogaster follicle cells |
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