The evolution of anural larvae in molgulid ascidians
Ascidians are urochordates, marine invertebrates with non-feeding motile chordate tadpole larvae, except in the family Molgulidae. Urodele, or tailed, Molgulids have typical ascidian chordate tadpole larvae possessing tails with muscle cells, a notochord, and a dorsal hollow nerve cord. In contrast,...
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| Veröffentlicht in: | Seminars in cell & developmental biology 2000-12, Vol.11 (6), p.419-426 |
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| container_title | Seminars in cell & developmental biology |
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| creator | Huber, Jennifer L. da Silva, Karen Burke Bates, William R Swalla, Billie J. |
| description | Ascidians are urochordates, marine invertebrates with non-feeding motile chordate tadpole larvae, except in the family Molgulidae. Urodele, or tailed, Molgulids have typical ascidian chordate tadpole larvae possessing tails with muscle cells, a notochord, and a dorsal hollow nerve cord. In contrast, anural (or tail-less) Molgulids lack a tail and defining chordate features. Molecular phylogenies generated with 18S and 28S ribosomal sequences indicate that Molgulid species fall into at least four distinct clades, three of which have multiple anural members. This refined and expanded phylogeny allows careful examination of the factors that may have influenced the evolution of tail-less ascidians. |
| doi_str_mv | 10.1006/scdb.2000.0195 |
| format | Article |
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This refined and expanded phylogeny allows careful examination of the factors that may have influenced the evolution of tail-less ascidians.</description><subject>Animals</subject><subject>Anura</subject><subject>Ascidiacea</subject><subject>ascidian / biogeography / evolution / larva / Molgula</subject><subject>Ecology</subject><subject>Evolution, Molecular</subject><subject>Geography</subject><subject>Larva - genetics</subject><subject>Larva - growth & development</subject><subject>Molgula</subject><subject>Molgulidae</subject><subject>Phylogeny</subject><subject>rRNA 18S</subject><subject>rRNA 28S</subject><subject>Urochordata - embryology</subject><subject>Urochordata - genetics</subject><subject>Urochordata - growth & development</subject><issn>1084-9521</issn><issn>1096-3634</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkDtPwzAURi0EoqWwMqJMbAm2Y_vGI6p4SZVYymw5tgNGSVzspBL_nkStxISY7h3Od4aD0DXBBcFY3CVj64JijAtMJD9BS4KlyEtRstP5r1guOSULdJHS50QxScU5WhBCGK8ALxHbfrjM7UM7Dj70WWgy3Y9Rt1mr4167zPdZF9r3sfU208l463WfLtFZo9vkro53hd4eH7br53zz-vSyvt_khpUw5IzUVcPBUgCLqxI0UF1xWdXScC5LCdQwKXVdEmBCWGwaaCSvRUOwACJEuUK3B-8uhq_RpUF1PhnXtrp3YUwKKAPGgP4LEgBOJPAJLA6giSGl6Bq1i77T8VsRrOagag6q5qBqDjoNbo7mse6c_cWPBSegOgBuCrH3Lk4G73rjrI_ODMoG_5f7B9JmghI</recordid><startdate>20001201</startdate><enddate>20001201</enddate><creator>Huber, Jennifer L.</creator><creator>da Silva, Karen Burke</creator><creator>Bates, William R</creator><creator>Swalla, Billie J.</creator><general>Elsevier Ltd</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>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>L.G</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>20001201</creationdate><title>The evolution of anural larvae in molgulid ascidians</title><author>Huber, Jennifer L. ; da Silva, Karen Burke ; Bates, William R ; Swalla, Billie J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c437t-41b8f57d277d0837a72a8598b9c5593972c499ab317466d0cf7f95b6f10671663</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Animals</topic><topic>Anura</topic><topic>Ascidiacea</topic><topic>ascidian / biogeography / evolution / larva / Molgula</topic><topic>Ecology</topic><topic>Evolution, Molecular</topic><topic>Geography</topic><topic>Larva - genetics</topic><topic>Larva - growth & development</topic><topic>Molgula</topic><topic>Molgulidae</topic><topic>Phylogeny</topic><topic>rRNA 18S</topic><topic>rRNA 28S</topic><topic>Urochordata - embryology</topic><topic>Urochordata - genetics</topic><topic>Urochordata - growth & development</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huber, Jennifer L.</creatorcontrib><creatorcontrib>da Silva, Karen Burke</creatorcontrib><creatorcontrib>Bates, William R</creatorcontrib><creatorcontrib>Swalla, Billie J.</creatorcontrib><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>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Seminars in cell & developmental biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huber, Jennifer L.</au><au>da Silva, Karen Burke</au><au>Bates, William R</au><au>Swalla, Billie J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The evolution of anural larvae in molgulid ascidians</atitle><jtitle>Seminars in cell & developmental biology</jtitle><addtitle>Semin Cell Dev Biol</addtitle><date>2000-12-01</date><risdate>2000</risdate><volume>11</volume><issue>6</issue><spage>419</spage><epage>426</epage><pages>419-426</pages><issn>1084-9521</issn><eissn>1096-3634</eissn><abstract>Ascidians are urochordates, marine invertebrates with non-feeding motile chordate tadpole larvae, except in the family Molgulidae. 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| subjects | Animals Anura Ascidiacea ascidian / biogeography / evolution / larva / Molgula Ecology Evolution, Molecular Geography Larva - genetics Larva - growth & development Molgula Molgulidae Phylogeny rRNA 18S rRNA 28S Urochordata - embryology Urochordata - genetics Urochordata - growth & development |
| title | The evolution of anural larvae in molgulid ascidians |
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