Evolution of DNA in heterochromatin: the Drosophila melanogaster sibling species subgroup as a resource
The Drosophila melanogaster species subgroup is a closely-knit collection of eight sibling species whose relationships are well defined. These species are too close for most evolutionary studies of euchromatic genes but are ideal to investigate the major changes that occur to DNA in heterochromatin...
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| Veröffentlicht in: | Genetica 2000-07, Vol.109 (1-2), p.125-130 |
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| creator | Lohe, A R Roberts, P A |
| description | The Drosophila melanogaster species subgroup is a closely-knit collection of eight sibling species whose relationships are well defined. These species are too close for most evolutionary studies of euchromatic genes but are ideal to investigate the major changes that occur to DNA in heterochromatin over short periods during evolution. For example, it is not known whether the locations of genes in heterochromatin are conserved over this time. The 18S and 28S ribosomal RNA genes can be considered as genuine heterochromatic genes. In D. melanogaster the rRNA genes are located at two sites, one each on the X and Y chromosome. In the other seven sibling species, rRNA genes are also located on the sex chromosomes but the positions often vary significantly, particularly on the Y. Furthermore, rDNA has been lost from the Y chromosome of both D. simulans and D. sechellia, presumably after separation of the line leading to present-day D. mauritiana. We conclude that changes to chromosomal position and copy number of rDNA arrays occur over much shorter evolutionary timespans than previously thought. In these respects the rDNA behaves more like the tandemly repeated satellite DNAs than euchromatic genes. |
| doi_str_mv | 10.1023/A:1026588217432 |
| format | Article |
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These species are too close for most evolutionary studies of euchromatic genes but are ideal to investigate the major changes that occur to DNA in heterochromatin over short periods during evolution. For example, it is not known whether the locations of genes in heterochromatin are conserved over this time. The 18S and 28S ribosomal RNA genes can be considered as genuine heterochromatic genes. In D. melanogaster the rRNA genes are located at two sites, one each on the X and Y chromosome. In the other seven sibling species, rRNA genes are also located on the sex chromosomes but the positions often vary significantly, particularly on the Y. Furthermore, rDNA has been lost from the Y chromosome of both D. simulans and D. sechellia, presumably after separation of the line leading to present-day D. mauritiana. We conclude that changes to chromosomal position and copy number of rDNA arrays occur over much shorter evolutionary timespans than previously thought. In these respects the rDNA behaves more like the tandemly repeated satellite DNAs than euchromatic genes.</description><subject>Animals</subject><subject>Biological evolution</subject><subject>Chromosomes</subject><subject>Copy number</subject><subject>Deoxyribonucleic acid</subject><subject>DNA</subject><subject>Drosophila</subject><subject>Drosophila mauritiana</subject><subject>Drosophila melanogaster</subject><subject>Drosophila melanogaster - genetics</subject><subject>Drosophila sechellia</subject><subject>Drosophila simulans</subject><subject>Evolution, Molecular</subject><subject>Evolutionary genetics</subject><subject>Fruit flies</subject><subject>Genes</subject><subject>Genetics</subject><subject>Heterochromatin</subject><subject>Heterochromatin - genetics</subject><subject>Insects</subject><subject>RNA, Ribosomal - genetics</subject><subject>rRNA 18S</subject><subject>rRNA 28S</subject><subject>Sex chromosomes</subject><subject>Sibling species</subject><subject>Species Specificity</subject><subject>Subgroups</subject><subject>Y chromosomes</subject><issn>0016-6707</issn><issn>1573-6857</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNqF0U1r3DAQBmBRWpJtmnNvQbTQnJxqJEsj57bkG5b2kpyN7MzuKtiWI9mB_vtqSXopJDmMRoeHlxmGsa8gTkBI9XN5mpvR1krAUskPbAEaVWGsxo9sIQSYwqDAffY5pQchRIWm2mP7ALJSaHHBNhdPoZsnHwYe1vz815L7gW9pohjabQy9m_xwyqct8fMYUhi3vnO8p84NYeNSZjz5pvPDhqeRWk-Jp7nZxDCP3CXueKQU5tjSF_Zp7bpEhy_9gN1dXtyeXRer31c3Z8tV0ZaAU2FRIVD-ApToQBOVtgLVCF1W1N5bI62s8iMUYesMqFZodMLYdQMonFQH7Pg5d4zhcaY01b1PLXV5YApzqq1WJRqUmOWPNyVKbRXkeg8CYmZVmeG3_-BD3n3I69ZotLBWyF3a99eQNEbZPBnuoo5e1Nz0dF-P0fcu_qn_HU79BXZel5E</recordid><startdate>20000701</startdate><enddate>20000701</enddate><creator>Lohe, A R</creator><creator>Roberts, P A</creator><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>3V.</scope><scope>7QL</scope><scope>7SN</scope><scope>7SS</scope><scope>7T7</scope><scope>7TK</scope><scope>7U9</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>RC3</scope><scope>7X8</scope><scope>7TM</scope></search><sort><creationdate>20000701</creationdate><title>Evolution of DNA in heterochromatin: the Drosophila melanogaster sibling species subgroup as a resource</title><author>Lohe, A R ; Roberts, P A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c417t-87371e4171147a15ee48913b0549ecd86282962803e7ca613c057a068fb170a23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Animals</topic><topic>Biological evolution</topic><topic>Chromosomes</topic><topic>Copy number</topic><topic>Deoxyribonucleic acid</topic><topic>DNA</topic><topic>Drosophila</topic><topic>Drosophila mauritiana</topic><topic>Drosophila melanogaster</topic><topic>Drosophila melanogaster - genetics</topic><topic>Drosophila sechellia</topic><topic>Drosophila simulans</topic><topic>Evolution, Molecular</topic><topic>Evolutionary genetics</topic><topic>Fruit flies</topic><topic>Genes</topic><topic>Genetics</topic><topic>Heterochromatin</topic><topic>Heterochromatin - genetics</topic><topic>Insects</topic><topic>RNA, Ribosomal - genetics</topic><topic>rRNA 18S</topic><topic>rRNA 28S</topic><topic>Sex chromosomes</topic><topic>Sibling species</topic><topic>Species Specificity</topic><topic>Subgroups</topic><topic>Y chromosomes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lohe, A R</creatorcontrib><creatorcontrib>Roberts, P A</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>ProQuest Central (Corporate)</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Neurosciences Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>Nucleic Acids Abstracts</collection><jtitle>Genetica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lohe, A R</au><au>Roberts, P A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evolution of DNA in heterochromatin: the Drosophila melanogaster sibling species subgroup as a resource</atitle><jtitle>Genetica</jtitle><addtitle>Genetica</addtitle><date>2000-07-01</date><risdate>2000</risdate><volume>109</volume><issue>1-2</issue><spage>125</spage><epage>130</epage><pages>125-130</pages><issn>0016-6707</issn><eissn>1573-6857</eissn><abstract>The Drosophila melanogaster species subgroup is a closely-knit collection of eight sibling species whose relationships are well defined. 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| ispartof | Genetica, 2000-07, Vol.109 (1-2), p.125-130 |
| issn | 0016-6707 1573-6857 |
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| subjects | Animals Biological evolution Chromosomes Copy number Deoxyribonucleic acid DNA Drosophila Drosophila mauritiana Drosophila melanogaster Drosophila melanogaster - genetics Drosophila sechellia Drosophila simulans Evolution, Molecular Evolutionary genetics Fruit flies Genes Genetics Heterochromatin Heterochromatin - genetics Insects RNA, Ribosomal - genetics rRNA 18S rRNA 28S Sex chromosomes Sibling species Species Specificity Subgroups Y chromosomes |
| title | Evolution of DNA in heterochromatin: the Drosophila melanogaster sibling species subgroup as a resource |
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