Genetic diversity, phylogenetic position and morphometric analysis of Astacus colchicus (Decapoda, Astacidae): a new insight into Eastern European crayfish fauna
The phylogeny of European crayfish fauna, especially with respect to Eastern European species, is still far from being completely resolved. To fill this gap, we analyzed most of the European crayfish species focusing on the phylogenetic position of the endemic crayfish Astacus colchicus, inhabiting...
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description | The phylogeny of European crayfish fauna, especially with respect to Eastern European species, is still far from being completely resolved. To fill this gap, we analyzed most of the European crayfish species focusing on the phylogenetic position of the endemic crayfish Astacus colchicus, inhabiting Georgia. Three mitochondrial and one nuclear marker were used to study evolutionary relationships among European crayfish species, resulting in the unique phylogenetic position of A. colchicus indicating independent species status to A. astacus. Phylogenetic analyses revealed a deep molecular divergence of A. colchicus in comparison to A. astacus (6.5–10.9% in mtDNA and 1.1% in nDNA) as well as to Pontastacus leptodactylus and P. pachypus (5.5–10.0% in mtDNA and 1.4–2.4% in nDNA). Absent ventral process on second male pleopod and abdominal somites II and III with pleura rounded lacking prominent spines clearly indicate taxonomic assignment to the genus Astacus; however, the species is distributed almost in the middle of Ponto‐Caspian area typical by occurrence of the genus Pontastacus. Several morphological indices linked to head length, carapace, and total body length and width were found to demonstrate apparent differences between A. colchicus and A. astacus. Although this study provides a novel insight into European crayfish phylogeography, we also point out the gaps in comprehensive study of the P. leptodactylus species complex, which could reveal details about the potential species status of particular species and subspecies within this genus.
Astacus colchicus displayed the unique phylogenetic position. Several morphological indices linked to head length, carapace, and total body length and body width were found to demonstrate apparent differences to the closest relative Astacus astacus and thus, can be used to distinguish between 2 species mentioned. |
doi_str_mv | 10.1111/1749-4877.12493 |
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Astacus colchicus displayed the unique phylogenetic position. Several morphological indices linked to head length, carapace, and total body length and body width were found to demonstrate apparent differences to the closest relative Astacus astacus and thus, can be used to distinguish between 2 species mentioned.</description><identifier>ISSN: 1749-4877</identifier><identifier>ISSN: 1749-4869</identifier><identifier>EISSN: 1749-4877</identifier><identifier>DOI: 10.1111/1749-4877.12493</identifier><identifier>PMID: 32978865</identifier><language>eng</language><publisher>Australia: Wiley Subscription Services, Inc</publisher><subject>12S rRNA ; 16S rRNA ; Animals ; Aquatic crustaceans ; Astacoidea - anatomy & histology ; Astacoidea - classification ; Astacoidea - genetics ; Astacus ; Body length ; Carapace ; cytochrome c oxidase ; Divergence ; Evolution ; Fauna ; Female ; Freshwater crustaceans ; Genetic analysis ; Genetic diversity ; Genetic variation ; Georgia (Republic) ; histone H3 ; Length ; Male ; Marine crustaceans ; Mitochondria ; Mitochondrial DNA ; Morphometry ; Phylogenetics ; Phylogeny ; Phylogeography ; Pleura ; Pontastacus leptodactylus ; Ponto‐Caspian crayfish ; Sequence Analysis, DNA ; Somites ; Species ; Spines</subject><ispartof>Integrative zoology, 2021-05, Vol.16 (3), p.368-378</ispartof><rights>2020 International Society of Zoological Sciences, Institute of Zoology/Chinese Academy of Sciences and John Wiley & Sons Australia, Ltd.</rights><rights>2021 International Society of Zoological Sciences, Institute of Zoology/Chinese Academy of Sciences and John Wiley & Sons Australia, Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2873-82d5b4e8a7d5cca2c8709a3bb0fd48ee40c71b911e4301b146d870536545505d3</citedby><cites>FETCH-LOGICAL-c2873-82d5b4e8a7d5cca2c8709a3bb0fd48ee40c71b911e4301b146d870536545505d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2F1749-4877.12493$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2F1749-4877.12493$$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/32978865$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>BLÁHA, Martin</creatorcontrib><creatorcontrib>PATOKA, Jiří</creatorcontrib><creatorcontrib>JAPOSHVILI, Bella</creatorcontrib><creatorcontrib>LET, Marek</creatorcontrib><creatorcontrib>BUŘIČ, Miloš</creatorcontrib><creatorcontrib>KOUBA, Antonín</creatorcontrib><creatorcontrib>MUMLADZE, Levan</creatorcontrib><title>Genetic diversity, phylogenetic position and morphometric analysis of Astacus colchicus (Decapoda, Astacidae): a new insight into Eastern European crayfish fauna</title><title>Integrative zoology</title><addtitle>Integr Zool</addtitle><description>The phylogeny of European crayfish fauna, especially with respect to Eastern European species, is still far from being completely resolved. To fill this gap, we analyzed most of the European crayfish species focusing on the phylogenetic position of the endemic crayfish Astacus colchicus, inhabiting Georgia. Three mitochondrial and one nuclear marker were used to study evolutionary relationships among European crayfish species, resulting in the unique phylogenetic position of A. colchicus indicating independent species status to A. astacus. Phylogenetic analyses revealed a deep molecular divergence of A. colchicus in comparison to A. astacus (6.5–10.9% in mtDNA and 1.1% in nDNA) as well as to Pontastacus leptodactylus and P. pachypus (5.5–10.0% in mtDNA and 1.4–2.4% in nDNA). Absent ventral process on second male pleopod and abdominal somites II and III with pleura rounded lacking prominent spines clearly indicate taxonomic assignment to the genus Astacus; however, the species is distributed almost in the middle of Ponto‐Caspian area typical by occurrence of the genus Pontastacus. Several morphological indices linked to head length, carapace, and total body length and width were found to demonstrate apparent differences between A. colchicus and A. astacus. Although this study provides a novel insight into European crayfish phylogeography, we also point out the gaps in comprehensive study of the P. leptodactylus species complex, which could reveal details about the potential species status of particular species and subspecies within this genus.
Astacus colchicus displayed the unique phylogenetic position. 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To fill this gap, we analyzed most of the European crayfish species focusing on the phylogenetic position of the endemic crayfish Astacus colchicus, inhabiting Georgia. Three mitochondrial and one nuclear marker were used to study evolutionary relationships among European crayfish species, resulting in the unique phylogenetic position of A. colchicus indicating independent species status to A. astacus. Phylogenetic analyses revealed a deep molecular divergence of A. colchicus in comparison to A. astacus (6.5–10.9% in mtDNA and 1.1% in nDNA) as well as to Pontastacus leptodactylus and P. pachypus (5.5–10.0% in mtDNA and 1.4–2.4% in nDNA). Absent ventral process on second male pleopod and abdominal somites II and III with pleura rounded lacking prominent spines clearly indicate taxonomic assignment to the genus Astacus; however, the species is distributed almost in the middle of Ponto‐Caspian area typical by occurrence of the genus Pontastacus. Several morphological indices linked to head length, carapace, and total body length and width were found to demonstrate apparent differences between A. colchicus and A. astacus. Although this study provides a novel insight into European crayfish phylogeography, we also point out the gaps in comprehensive study of the P. leptodactylus species complex, which could reveal details about the potential species status of particular species and subspecies within this genus.
Astacus colchicus displayed the unique phylogenetic position. Several morphological indices linked to head length, carapace, and total body length and body width were found to demonstrate apparent differences to the closest relative Astacus astacus and thus, can be used to distinguish between 2 species mentioned.</abstract><cop>Australia</cop><pub>Wiley Subscription Services, Inc</pub><pmid>32978865</pmid><doi>10.1111/1749-4877.12493</doi><tpages>11</tpages></addata></record> |
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subjects | 12S rRNA 16S rRNA Animals Aquatic crustaceans Astacoidea - anatomy & histology Astacoidea - classification Astacoidea - genetics Astacus Body length Carapace cytochrome c oxidase Divergence Evolution Fauna Female Freshwater crustaceans Genetic analysis Genetic diversity Genetic variation Georgia (Republic) histone H3 Length Male Marine crustaceans Mitochondria Mitochondrial DNA Morphometry Phylogenetics Phylogeny Phylogeography Pleura Pontastacus leptodactylus Ponto‐Caspian crayfish Sequence Analysis, DNA Somites Species Spines |
title | Genetic diversity, phylogenetic position and morphometric analysis of Astacus colchicus (Decapoda, Astacidae): a new insight into Eastern European crayfish fauna |
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