Meridionella gen. nov., a New Genus of Cystocloniaceae (Gigartinales, Rhodophyta) from the Southern Hemisphere, Including M. obtusangula comb. nov. and M. antarctica sp. nov
The classification of Cystoclonium obtusangulum has been questioned since the species was first described by Hooker and Harvey as Gracilaria? obtusangula. The objective of this study was to provide the first comprehensive taxonomic analysis of Cystoclonium obtusangulum, based on DNA sequences couple...
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| Veröffentlicht in: | Journal of phycology 2021-06, Vol.57 (3), p.797-816 |
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| creator | Tonicelli, Gina A. Croce, Maria Emilia Díaz‐Tapia, Pilar Fredericq, Suzanne Freshwater, David Wilson Gauna, Maria Cecilia Parodi, Elisa R. Verbruggen, Heroen Hommersand, Max H. Lane, C. |
| description | The classification of Cystoclonium obtusangulum has been questioned since the species was first described by Hooker and Harvey as Gracilaria? obtusangula. The objective of this study was to provide the first comprehensive taxonomic analysis of Cystoclonium obtusangulum, based on DNA sequences coupled with morphological observations made on syntype specimens and new collections. Sequence divergences of rbcL, UPA, and COI‐5P, and maximum‐likelihood phylogenies for rbcL and 18S demonstrated that specimens identified as Cystoclonium obtusangulum represent a clade of two distinct species that are distantly related to the generitype Cystoclonium purpureum. A new genus, Meridionella gen. nov., is proposed for this clade. The two species placed in this new genus were morphologically indistinguishable cryptic species, but have disjunct distributions, with Meridionella obtusangula comb. nov. found from temperate to cold coasts of South America and the Falkland Islands and Meridionella antarctica sp. nov., occurring in Antarctic waters. Vegetative and reproductive characters of Meridionella gen. nov. are described, and implications of our results for the biogeography of the family Cystocloniaceae are discussed. |
| doi_str_mv | 10.1111/jpy.13127 |
| format | Article |
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The objective of this study was to provide the first comprehensive taxonomic analysis of Cystoclonium obtusangulum, based on DNA sequences coupled with morphological observations made on syntype specimens and new collections. Sequence divergences of rbcL, UPA, and COI‐5P, and maximum‐likelihood phylogenies for rbcL and 18S demonstrated that specimens identified as Cystoclonium obtusangulum represent a clade of two distinct species that are distantly related to the generitype Cystoclonium purpureum. A new genus, Meridionella gen. nov., is proposed for this clade. The two species placed in this new genus were morphologically indistinguishable cryptic species, but have disjunct distributions, with Meridionella obtusangula comb. nov. found from temperate to cold coasts of South America and the Falkland Islands and Meridionella antarctica sp. nov., occurring in Antarctic waters. Vegetative and reproductive characters of Meridionella gen. nov. are described, and implications of our results for the biogeography of the family Cystocloniaceae are discussed.</description><identifier>ISSN: 0022-3646</identifier><identifier>EISSN: 1529-8817</identifier><identifier>DOI: 10.1111/jpy.13127</identifier><identifier>PMID: 33450046</identifier><language>eng</language><publisher>United States: Wiley Subscription Services, Inc</publisher><subject>18S rRNA ; Antarctica ; Biogeography ; COI‐5P ; Collections ; Cryptic species ; Cystoclonium ; Deoxyribonucleic acid ; Divergence ; DNA ; Gene sequencing ; New genera ; New genus ; New species ; Nucleotide sequence ; Polar waters ; rbcL ; South America ; Southern Hemisphere ; Taxonomic revision ; Taxonomy ; UPA</subject><ispartof>Journal of phycology, 2021-06, Vol.57 (3), p.797-816</ispartof><rights>2021 Phycological Society of America</rights><rights>2021 Phycological Society of America.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3887-6a78acecec8ed738e8be0c36cce7e6e43ab5718096c488264bdae06f008d3dec3</citedby><cites>FETCH-LOGICAL-c3887-6a78acecec8ed738e8be0c36cce7e6e43ab5718096c488264bdae06f008d3dec3</cites><orcidid>0000-0003-4680-4867 ; 0000-0002-6305-4749 ; 0000-0003-0125-3133 ; 0000-0001-7333-8078</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fjpy.13127$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fjpy.13127$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33450046$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Lane, C.</contributor><creatorcontrib>Tonicelli, Gina A.</creatorcontrib><creatorcontrib>Croce, Maria Emilia</creatorcontrib><creatorcontrib>Díaz‐Tapia, Pilar</creatorcontrib><creatorcontrib>Fredericq, Suzanne</creatorcontrib><creatorcontrib>Freshwater, David Wilson</creatorcontrib><creatorcontrib>Gauna, Maria Cecilia</creatorcontrib><creatorcontrib>Parodi, Elisa R.</creatorcontrib><creatorcontrib>Verbruggen, Heroen</creatorcontrib><creatorcontrib>Hommersand, Max H.</creatorcontrib><creatorcontrib>Lane, C.</creatorcontrib><title>Meridionella gen. nov., a New Genus of Cystocloniaceae (Gigartinales, Rhodophyta) from the Southern Hemisphere, Including M. obtusangula comb. nov. and M. antarctica sp. nov</title><title>Journal of phycology</title><addtitle>J Phycol</addtitle><description>The classification of Cystoclonium obtusangulum has been questioned since the species was first described by Hooker and Harvey as Gracilaria? obtusangula. 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Croce, Maria Emilia ; Díaz‐Tapia, Pilar ; Fredericq, Suzanne ; Freshwater, David Wilson ; Gauna, Maria Cecilia ; Parodi, Elisa R. ; Verbruggen, Heroen ; Hommersand, Max H. ; Lane, C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3887-6a78acecec8ed738e8be0c36cce7e6e43ab5718096c488264bdae06f008d3dec3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>18S rRNA</topic><topic>Antarctica</topic><topic>Biogeography</topic><topic>COI‐5P</topic><topic>Collections</topic><topic>Cryptic species</topic><topic>Cystoclonium</topic><topic>Deoxyribonucleic acid</topic><topic>Divergence</topic><topic>DNA</topic><topic>Gene sequencing</topic><topic>New genera</topic><topic>New genus</topic><topic>New species</topic><topic>Nucleotide sequence</topic><topic>Polar waters</topic><topic>rbcL</topic><topic>South America</topic><topic>Southern Hemisphere</topic><topic>Taxonomic revision</topic><topic>Taxonomy</topic><topic>UPA</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tonicelli, Gina A.</creatorcontrib><creatorcontrib>Croce, Maria Emilia</creatorcontrib><creatorcontrib>Díaz‐Tapia, Pilar</creatorcontrib><creatorcontrib>Fredericq, Suzanne</creatorcontrib><creatorcontrib>Freshwater, David Wilson</creatorcontrib><creatorcontrib>Gauna, Maria Cecilia</creatorcontrib><creatorcontrib>Parodi, Elisa R.</creatorcontrib><creatorcontrib>Verbruggen, Heroen</creatorcontrib><creatorcontrib>Hommersand, Max H.</creatorcontrib><creatorcontrib>Lane, C.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of phycology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tonicelli, Gina A.</au><au>Croce, Maria Emilia</au><au>Díaz‐Tapia, Pilar</au><au>Fredericq, Suzanne</au><au>Freshwater, David Wilson</au><au>Gauna, Maria Cecilia</au><au>Parodi, Elisa R.</au><au>Verbruggen, Heroen</au><au>Hommersand, Max H.</au><au>Lane, C.</au><au>Lane, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Meridionella gen. nov., a New Genus of Cystocloniaceae (Gigartinales, Rhodophyta) from the Southern Hemisphere, Including M. obtusangula comb. nov. and M. antarctica sp. nov</atitle><jtitle>Journal of phycology</jtitle><addtitle>J Phycol</addtitle><date>2021-06</date><risdate>2021</risdate><volume>57</volume><issue>3</issue><spage>797</spage><epage>816</epage><pages>797-816</pages><issn>0022-3646</issn><eissn>1529-8817</eissn><abstract>The classification of Cystoclonium obtusangulum has been questioned since the species was first described by Hooker and Harvey as Gracilaria? obtusangula. 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| subjects | 18S rRNA Antarctica Biogeography COI‐5P Collections Cryptic species Cystoclonium Deoxyribonucleic acid Divergence DNA Gene sequencing New genera New genus New species Nucleotide sequence Polar waters rbcL South America Southern Hemisphere Taxonomic revision Taxonomy UPA |
| title | Meridionella gen. nov., a New Genus of Cystocloniaceae (Gigartinales, Rhodophyta) from the Southern Hemisphere, Including M. obtusangula comb. nov. and M. antarctica sp. nov |
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