Genetic study reveals close link between Irish and Northern Spanish specimens of the protected Lusitanian slug Geomalacus maculosus
The slug Geomalacus maculosus is a prominent member of the Lusitanian fauna. As its global distribution is restricted to western Ireland and northern Iberia, it is protected under EU legislation. Nothing is known about the genetic variability and population structure of this species, so, with a spec...
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| Veröffentlicht in: | Biological journal of the Linnean Society 2015-09, Vol.116 (1), p.156-168 |
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| container_title | Biological journal of the Linnean Society |
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| creator | Reich, Inga Gormally, Michael Allcock, A. Louise McDonnell, Rory Castillejo, José Iglesias, Javier Quinteiro, Javier Smith, Cindy J. |
| description | The slug Geomalacus maculosus is a prominent member of the Lusitanian fauna. As its global distribution is restricted to western Ireland and northern Iberia, it is protected under EU legislation. Nothing is known about the genetic variability and population structure of this species, so, with a special view to shedding light on the origin of the Irish G. maculosus, tissue samples from 78 specimens were collected from 13 locations within Ireland and ten locations within Iberia and partial sequences of the mitochondrial 16S rRNA and cytochrome oxidase subunit 1 (COI) and from the nuclear internal transcribed spacer 1 region (ITS‐1) were compared. The genetic diversity of the Irish G. maculosus was found to be greatly reduced compared with the Iberian populations, with only one (16S rRNA) and two (COI) mitochondrial haplotypes identified respectively. No private Irish ITS‐1 haplotype was found. Based on the COI sequences, the Irish specimens clustered closest to Spanish specimens from Northern Asturias and Cantabria, and the bGMYC analysis identified five further Iberian clades that were highly genetically differentiated suggesting long‐term allopatric divergence. |
| doi_str_mv | 10.1111/bij.12568 |
| format | Article |
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Louise ; McDonnell, Rory ; Castillejo, José ; Iglesias, Javier ; Quinteiro, Javier ; Smith, Cindy J.</creator><creatorcontrib>Reich, Inga ; Gormally, Michael ; Allcock, A. Louise ; McDonnell, Rory ; Castillejo, José ; Iglesias, Javier ; Quinteiro, Javier ; Smith, Cindy J.</creatorcontrib><description>The slug Geomalacus maculosus is a prominent member of the Lusitanian fauna. As its global distribution is restricted to western Ireland and northern Iberia, it is protected under EU legislation. Nothing is known about the genetic variability and population structure of this species, so, with a special view to shedding light on the origin of the Irish G. maculosus, tissue samples from 78 specimens were collected from 13 locations within Ireland and ten locations within Iberia and partial sequences of the mitochondrial 16S rRNA and cytochrome oxidase subunit 1 (COI) and from the nuclear internal transcribed spacer 1 region (ITS‐1) were compared. The genetic diversity of the Irish G. maculosus was found to be greatly reduced compared with the Iberian populations, with only one (16S rRNA) and two (COI) mitochondrial haplotypes identified respectively. No private Irish ITS‐1 haplotype was found. 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Based on the COI sequences, the Irish specimens clustered closest to Spanish specimens from Northern Asturias and Cantabria, and the bGMYC analysis identified five further Iberian clades that were highly genetically differentiated suggesting long‐term allopatric divergence.</description><subject>accidental introduction</subject><subject>Bayesian</subject><subject>conservation implications</subject><subject>divergence time estimation</subject><subject>generalised mixed Yule-coalescent</subject><subject>high mitochondrial DNA divergence</subject><subject>incomplete lineage sorting</subject><subject>Lusitanian fauna</subject><issn>0024-4066</issn><issn>1095-8312</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp1kE9PGzEQxa2qlUhpD3wDS5w4LPj_7h4phRAUwqFFHC3Hni0OG2-wvaU594tjSOmNOcxInt-bZz2EDig5pqVOln51TJlUzQc0oaSVVcMp-4gmhDBRCaLUHvqc0ooQSkXNJujvFAJkb3HKo9viCL_B9AnbfkiAex8e8BLyE0DAs-jTPTbB4cUQ8z3EgH9sTHh5TBuwfg0h4aHDZYU3cchgMzg8H5PPhTIBp378hacwrE1v7JjwuvRiM6Yv6FNXTOHrv7mPbi_Of55dVvOb6ezsdF5ZQWRTOdfJVhjBLJdGKV63smvatiGtYJQYUXNhHTVKElgC7yS1TirFnCOGqcYu-T463N0t33scIWW9GsYYiqWmNWGEcUqbQh3tKBuHlCJ0ehP92sStpkS_ZKxLxvo148Ke7Ngn38P2fVB_m129KaqdwqcMf_4rTHzQqua11HeLqb7m9Lu4WBCt-DNgdo4c</recordid><startdate>201509</startdate><enddate>201509</enddate><creator>Reich, Inga</creator><creator>Gormally, Michael</creator><creator>Allcock, A. 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Louise</au><au>McDonnell, Rory</au><au>Castillejo, José</au><au>Iglesias, Javier</au><au>Quinteiro, Javier</au><au>Smith, Cindy J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Genetic study reveals close link between Irish and Northern Spanish specimens of the protected Lusitanian slug Geomalacus maculosus</atitle><jtitle>Biological journal of the Linnean Society</jtitle><addtitle>Biol. J. Linn. Soc</addtitle><date>2015-09</date><risdate>2015</risdate><volume>116</volume><issue>1</issue><spage>156</spage><epage>168</epage><pages>156-168</pages><issn>0024-4066</issn><eissn>1095-8312</eissn><abstract>The slug Geomalacus maculosus is a prominent member of the Lusitanian fauna. As its global distribution is restricted to western Ireland and northern Iberia, it is protected under EU legislation. Nothing is known about the genetic variability and population structure of this species, so, with a special view to shedding light on the origin of the Irish G. maculosus, tissue samples from 78 specimens were collected from 13 locations within Ireland and ten locations within Iberia and partial sequences of the mitochondrial 16S rRNA and cytochrome oxidase subunit 1 (COI) and from the nuclear internal transcribed spacer 1 region (ITS‐1) were compared. The genetic diversity of the Irish G. maculosus was found to be greatly reduced compared with the Iberian populations, with only one (16S rRNA) and two (COI) mitochondrial haplotypes identified respectively. No private Irish ITS‐1 haplotype was found. Based on the COI sequences, the Irish specimens clustered closest to Spanish specimens from Northern Asturias and Cantabria, and the bGMYC analysis identified five further Iberian clades that were highly genetically differentiated suggesting long‐term allopatric divergence.</abstract><cop>Oxford</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/bij.12568</doi><tpages>13</tpages></addata></record> |
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| source | Wiley-Blackwell Journals; Oxford Journals |
| subjects | accidental introduction Bayesian conservation implications divergence time estimation generalised mixed Yule-coalescent high mitochondrial DNA divergence incomplete lineage sorting Lusitanian fauna |
| title | Genetic study reveals close link between Irish and Northern Spanish specimens of the protected Lusitanian slug Geomalacus maculosus |
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