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Phylogeny and phylogeography of medicinal leeches (genus Hirudo): fast dispersal and shallow genetic structure.
Mol Phylogenet Evol. 2012 May; 63(2):475-85.MP

Abstract

Medicinal leeches (Hirudo spp.) are among the best-studied invertebrates in many aspects of their biology. Yet, relatively little is known about their biogeography, ecology and evolution. Previous studies found vast ranges but suggested low genetic diversity for some species. To examine this apparent contradiction, the phylogeny and phylogeography of the widespread Hirudo verbana, Hirudo medicinalis and Hirudo orientalis were investigated in a comparative manner. Populations from across their ranges in Europe, Asia Minor, the Caucasus and Central Asia, were analyzed by various phylogenetic and population genetic approaches using both mitochondrial (COI and 12S) and nuclear DNA sequences (ITS1, 5.8S and ITS2). The populations showed surprisingly little genetic differentiation despite vast ranges. The only clear structure was observed in H. verbana. This species is subdivided into an Eastern (southern Ukraine, North Caucasus, Turkey and Uzbekistan) and a Western phylogroup (Balkans and Italy). The two phylogroups do not overlap, suggesting distinct postglacial colonization from separate refugia. Leeches supplied by commercial facilities belong to the Eastern phylogroup of H. verbana; they originate from Turkey and the Krasnodar Territory in Russia, two leading areas of leech export. H. verbana and H. medicinalis have experienced recent rapid population growth and range expansion, while isolation by distance has shaped the genetic setup of H. orientalis. The habitat of the latter is patchy and scattered about inhospitable arid and alpine areas of Central Asia and Transcaucasia. Centuries of leech collecting and transport across Europe seem not to have affected the natural distribution of genetic diversity, as the observed patterns can be explained by a combination of historical factors and present day climatic influences.

Authors+Show Affiliations

Department of Biology, Biotechnical Faculty, University of Ljubljana, P.O. Box 2995, SI-1001 Ljubljana, Slovenia. peter.trontelj@bf.uni-lj.siNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22342869

Citation

Trontelj, Peter, and Serge Y. Utevsky. "Phylogeny and Phylogeography of Medicinal Leeches (genus Hirudo): Fast Dispersal and Shallow Genetic Structure." Molecular Phylogenetics and Evolution, vol. 63, no. 2, 2012, pp. 475-85.
Trontelj P, Utevsky SY. Phylogeny and phylogeography of medicinal leeches (genus Hirudo): fast dispersal and shallow genetic structure. Mol Phylogenet Evol. 2012;63(2):475-85.
Trontelj, P., & Utevsky, S. Y. (2012). Phylogeny and phylogeography of medicinal leeches (genus Hirudo): fast dispersal and shallow genetic structure. Molecular Phylogenetics and Evolution, 63(2), 475-85. https://doi.org/10.1016/j.ympev.2012.01.022
Trontelj P, Utevsky SY. Phylogeny and Phylogeography of Medicinal Leeches (genus Hirudo): Fast Dispersal and Shallow Genetic Structure. Mol Phylogenet Evol. 2012;63(2):475-85. PubMed PMID: 22342869.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phylogeny and phylogeography of medicinal leeches (genus Hirudo): fast dispersal and shallow genetic structure. AU - Trontelj,Peter, AU - Utevsky,Serge Y, Y1 - 2012/02/08/ PY - 2011/10/06/received PY - 2012/01/10/revised PY - 2012/01/28/accepted PY - 2012/2/21/entrez PY - 2012/2/22/pubmed PY - 2012/7/19/medline SP - 475 EP - 85 JF - Molecular phylogenetics and evolution JO - Mol. Phylogenet. Evol. VL - 63 IS - 2 N2 - Medicinal leeches (Hirudo spp.) are among the best-studied invertebrates in many aspects of their biology. Yet, relatively little is known about their biogeography, ecology and evolution. Previous studies found vast ranges but suggested low genetic diversity for some species. To examine this apparent contradiction, the phylogeny and phylogeography of the widespread Hirudo verbana, Hirudo medicinalis and Hirudo orientalis were investigated in a comparative manner. Populations from across their ranges in Europe, Asia Minor, the Caucasus and Central Asia, were analyzed by various phylogenetic and population genetic approaches using both mitochondrial (COI and 12S) and nuclear DNA sequences (ITS1, 5.8S and ITS2). The populations showed surprisingly little genetic differentiation despite vast ranges. The only clear structure was observed in H. verbana. This species is subdivided into an Eastern (southern Ukraine, North Caucasus, Turkey and Uzbekistan) and a Western phylogroup (Balkans and Italy). The two phylogroups do not overlap, suggesting distinct postglacial colonization from separate refugia. Leeches supplied by commercial facilities belong to the Eastern phylogroup of H. verbana; they originate from Turkey and the Krasnodar Territory in Russia, two leading areas of leech export. H. verbana and H. medicinalis have experienced recent rapid population growth and range expansion, while isolation by distance has shaped the genetic setup of H. orientalis. The habitat of the latter is patchy and scattered about inhospitable arid and alpine areas of Central Asia and Transcaucasia. Centuries of leech collecting and transport across Europe seem not to have affected the natural distribution of genetic diversity, as the observed patterns can be explained by a combination of historical factors and present day climatic influences. SN - 1095-9513 UR - https://www.unboundmedicine.com/medline/citation/22342869/Phylogeny_and_phylogeography_of_medicinal_leeches__genus_Hirudo_:_fast_dispersal_and_shallow_genetic_structure_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1055-7903(12)00039-5 DB - PRIME DP - Unbound Medicine ER -