Ribosomal protein L10 is encoded in the mitochondrial genome of many land plants and green algae
Identifieur interne : 000F98 ( Pmc/Checkpoint ); précédent : 000F97; suivant : 000F99Ribosomal protein L10 is encoded in the mitochondrial genome of many land plants and green algae
Auteurs : Jeffrey P. Mower [États-Unis] ; Linda Bonen [Canada]Source :
- BMC Evolutionary Biology [ 1471-2148 ] ; 2009.
Abstract
The mitochondrial genomes of plants generally encode 30-40 identified protein-coding genes and a large number of lineage-specific ORFs. The lack of wide conservation for most ORFs suggests they are unlikely to be functional. However, an ORF, termed
From a broad survey of land plants, we have found that the
Despite the fact that there are now over 20 mitochondrial genome sequences for land plants and green algae, this gene has remained unidentified and largely undetected until now because of the unlikely coincidence that most of the earlier sequences were from the few lineages that lack the intact gene. These results illustrate the power of comparative sequencing to identify novel genomic features.
Url:
DOI: 10.1186/1471-2148-9-265
PubMed: 19917118
PubMed Central: 2780418
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Ribosomal protein L10 is encoded in the mitochondrial genome of many land plants and green algae</title>
<author><name sortKey="Mower, Jeffrey P" sort="Mower, Jeffrey P" uniqKey="Mower J" first="Jeffrey P" last="Mower">Jeffrey P. Mower</name>
<affiliation wicri:level="1"><nlm:aff id="I1">Center for Plant Science Innovation and Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Center for Plant Science Innovation and Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE</wicri:regionArea>
<wicri:noRegion>NE</wicri:noRegion>
</affiliation>
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<author><name sortKey="Bonen, Linda" sort="Bonen, Linda" uniqKey="Bonen L" first="Linda" last="Bonen">Linda Bonen</name>
<affiliation wicri:level="1"><nlm:aff id="I2">Department of Biology, University of Ottawa, Ottawa, Canada</nlm:aff>
<country xml:lang="fr">Canada</country>
<wicri:regionArea>Department of Biology, University of Ottawa, Ottawa</wicri:regionArea>
<wicri:noRegion>Ottawa</wicri:noRegion>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Ribosomal protein L10 is encoded in the mitochondrial genome of many land plants and green algae</title>
<author><name sortKey="Mower, Jeffrey P" sort="Mower, Jeffrey P" uniqKey="Mower J" first="Jeffrey P" last="Mower">Jeffrey P. Mower</name>
<affiliation wicri:level="1"><nlm:aff id="I1">Center for Plant Science Innovation and Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Center for Plant Science Innovation and Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE</wicri:regionArea>
<wicri:noRegion>NE</wicri:noRegion>
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<author><name sortKey="Bonen, Linda" sort="Bonen, Linda" uniqKey="Bonen L" first="Linda" last="Bonen">Linda Bonen</name>
<affiliation wicri:level="1"><nlm:aff id="I2">Department of Biology, University of Ottawa, Ottawa, Canada</nlm:aff>
<country xml:lang="fr">Canada</country>
<wicri:regionArea>Department of Biology, University of Ottawa, Ottawa</wicri:regionArea>
<wicri:noRegion>Ottawa</wicri:noRegion>
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<series><title level="j">BMC Evolutionary Biology</title>
<idno type="eISSN">1471-2148</idno>
<imprint><date when="2009">2009</date>
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<front><div type="abstract" xml:lang="en"><sec><title>Background</title>
<p>The mitochondrial genomes of plants generally encode 30-40 identified protein-coding genes and a large number of lineage-specific ORFs. The lack of wide conservation for most ORFs suggests they are unlikely to be functional. However, an ORF, termed <italic>orf-bryo1</italic>
, was recently found to be conserved among bryophytes suggesting that it might indeed encode a functional mitochondrial protein.</p>
</sec>
<sec><title>Results</title>
<p>From a broad survey of land plants, we have found that the <italic>orf-bryo1 </italic>
gene is also conserved in the mitochondria of vascular plants and charophycean green algae. This gene is actively transcribed and RNA edited in many flowering plants. Comparative sequence analysis and distribution of editing suggests that it encodes ribosomal protein L10 of the large subunit of the ribosome. In several lineages, such as crucifers and grasses, where the <italic>rpl10 </italic>
gene has been lost from the mitochondrion, we suggest that a copy of the nucleus-encoded chloroplast-derived <italic>rpl10 </italic>
gene may serve as a functional replacement.</p>
</sec>
<sec><title>Conclusion</title>
<p>Despite the fact that there are now over 20 mitochondrial genome sequences for land plants and green algae, this gene has remained unidentified and largely undetected until now because of the unlikely coincidence that most of the earlier sequences were from the few lineages that lack the intact gene. These results illustrate the power of comparative sequencing to identify novel genomic features.</p>
</sec>
</div>
</front>
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<pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">BMC Evol Biol</journal-id>
<journal-title-group><journal-title>BMC Evolutionary Biology</journal-title>
</journal-title-group>
<issn pub-type="epub">1471-2148</issn>
<publisher><publisher-name>BioMed Central</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">19917118</article-id>
<article-id pub-id-type="pmc">2780418</article-id>
<article-id pub-id-type="publisher-id">1471-2148-9-265</article-id>
<article-id pub-id-type="doi">10.1186/1471-2148-9-265</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Research article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Ribosomal protein L10 is encoded in the mitochondrial genome of many land plants and green algae</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" corresp="yes" id="A1"><name><surname>Mower</surname>
<given-names>Jeffrey P</given-names>
</name>
<xref ref-type="aff" rid="I1">1</xref>
<email>jmower2@unl.edu</email>
</contrib>
<contrib contrib-type="author" id="A2"><name><surname>Bonen</surname>
<given-names>Linda</given-names>
</name>
<xref ref-type="aff" rid="I2">2</xref>
<email>lbonen@uOttawa.ca</email>
</contrib>
</contrib-group>
<aff id="I1"><label>1</label>
Center for Plant Science Innovation and Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, USA</aff>
<aff id="I2"><label>2</label>
Department of Biology, University of Ottawa, Ottawa, Canada</aff>
<pub-date pub-type="collection"><year>2009</year>
</pub-date>
<pub-date pub-type="epub"><day>16</day>
<month>11</month>
<year>2009</year>
</pub-date>
<volume>9</volume>
<fpage>265</fpage>
<lpage>265</lpage>
<history><date date-type="received"><day>3</day>
<month>8</month>
<year>2009</year>
</date>
<date date-type="accepted"><day>16</day>
<month>11</month>
<year>2009</year>
</date>
</history>
<permissions><copyright-statement>Copyright ©2009 Mower and Bonen; licensee BioMed Central Ltd.</copyright-statement>
<copyright-year>2009</copyright-year>
<copyright-holder>Mower and Bonen; licensee BioMed Central Ltd.</copyright-holder>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.0"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/2.0">http://creativecommons.org/licenses/by/2.0</ext-link>
), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
</license>
</permissions>
<self-uri xlink:href="http://www.biomedcentral.com/1471-2148/9/265"></self-uri>
<abstract><sec><title>Background</title>
<p>The mitochondrial genomes of plants generally encode 30-40 identified protein-coding genes and a large number of lineage-specific ORFs. The lack of wide conservation for most ORFs suggests they are unlikely to be functional. However, an ORF, termed <italic>orf-bryo1</italic>
, was recently found to be conserved among bryophytes suggesting that it might indeed encode a functional mitochondrial protein.</p>
</sec>
<sec><title>Results</title>
<p>From a broad survey of land plants, we have found that the <italic>orf-bryo1 </italic>
gene is also conserved in the mitochondria of vascular plants and charophycean green algae. This gene is actively transcribed and RNA edited in many flowering plants. Comparative sequence analysis and distribution of editing suggests that it encodes ribosomal protein L10 of the large subunit of the ribosome. In several lineages, such as crucifers and grasses, where the <italic>rpl10 </italic>
gene has been lost from the mitochondrion, we suggest that a copy of the nucleus-encoded chloroplast-derived <italic>rpl10 </italic>
gene may serve as a functional replacement.</p>
</sec>
<sec><title>Conclusion</title>
<p>Despite the fact that there are now over 20 mitochondrial genome sequences for land plants and green algae, this gene has remained unidentified and largely undetected until now because of the unlikely coincidence that most of the earlier sequences were from the few lineages that lack the intact gene. These results illustrate the power of comparative sequencing to identify novel genomic features.</p>
</sec>
</abstract>
</article-meta>
</front>
</pmc>
<affiliations><list><country><li>Canada</li>
<li>États-Unis</li>
</country>
</list>
<tree><country name="États-Unis"><noRegion><name sortKey="Mower, Jeffrey P" sort="Mower, Jeffrey P" uniqKey="Mower J" first="Jeffrey P" last="Mower">Jeffrey P. Mower</name>
</noRegion>
</country>
<country name="Canada"><noRegion><name sortKey="Bonen, Linda" sort="Bonen, Linda" uniqKey="Bonen L" first="Linda" last="Bonen">Linda Bonen</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>
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