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Arhynchobdellida (Annelida: Oligochaeta: Hirudinida): Phylogenetic Relationships and Evolution
MOLECULAR PHYLOGENETICS AND EVOLUTION Molecular Phylogenetics and Evolution 30 (2004) 213–225 www.elsevier.com/locate/ympev Arhynchobdellida (Annelida: Oligochaeta: Hirudinida): phylogenetic relationships and evolution Elizabeth Bordaa,b,* and Mark E. Siddallb a Department of Biology, Graduate School and University Center, City University of New York, New York, NY, USA b Division of Invertebrate Zoology, American Museum of Natural History, New York, NY, USA Received 15 July 2003; revised 29 August 2003 Abstract A remarkable diversity of life history strategies, geographic distributions, and morphological characters provide a rich substrate for investigating the evolutionary relationships of arhynchobdellid leeches. The phylogenetic relationships, using parsimony anal- ysis, of the order Arhynchobdellida were investigated using nuclear 18S and 28S rDNA, mitochondrial 12S rDNA, and cytochrome c oxidase subunit I sequence data, as well as 24 morphological characters. Thirty-nine arhynchobdellid species were selected to represent the seven currently recognized families. Sixteen rhynchobdellid leeches from the families Glossiphoniidae and Piscicolidae were included as outgroup taxa. Analysis of all available data resolved a single most-parsimonious tree. The cladogram conflicted with most of the traditional classification schemes of the Arhynchobdellida. Monophyly of the Erpobdelliformes and Hirudini- formes was supported, whereas the families Haemadipsidae, Haemopidae, and Hirudinidae, as well as the genera Hirudo or Ali- olimnatis, were found not to be monophyletic. The results provide insight on the phylogenetic positions for the taxonomically problematic families Americobdellidae and Cylicobdellidae, the genera Semiscolex, Patagoniobdella, and Mesobdella, as well as genera traditionally classified under Hirudinidae. The evolution of dietary and habitat preferences is examined. Ó 2003 Elsevier Inc. All rights reserved. -
A Classic Model Animal in the 21St Century: Recent Lessons from the Leech Nervous System Daniel A
© 2015. Published by The Company of Biologists Ltd | Journal of Experimental Biology (2015) 218, 3353-3359 doi:10.1242/jeb.113860 COMMENTARY A classic model animal in the 21st century: recent lessons from the leech nervous system Daniel A. Wagenaar* ABSTRACT possess, have facilitated a remarkable range of studies on the The medicinal leech (genus Hirudo) is a classic model animal in neurons and circuits that underlie specific leech behaviors. systems neuroscience. The leech has been central to many Accordingly, this Commentary focuses on the use of the leech integrative studies that establish how properties of neurons and as an experimental organism in systems neuroscience and, in their interconnections give rise to the functioning of the animal at the particular, on progress in the decade since the appearance of the last behavioral level. Leeches exhibit several discrete behaviors (such as major review of leech systems neuroscience (Kristan et al., 2005). crawling, swimming and feeding) that are each relatively simple. I discuss recent lessons in circuit function, behavior and the Importantly, these behaviors can all be studied – at least at a basal development of the nervous system. Of particular interest are studies level – in the isolated nervous system. The leech nervous system is that explain behaviors in terms of neuronal mechanisms. As a particularly amenable to such studies because of its distributed comprehensive review of leech cellular neuroscience and molecular nature; sensory processing and generation of behavior occur to a biology is beyond the scope of this article, I focus primarily on large degree in iterated segmental ganglia that each contain only works that study behavior in terms of neuronal activity. -
Associative Learning Modifies Two Behaviors in the Leech, Hirudo Medicinalis
The Journal of Neuroscience, December 1988, B(12): 4812-4820 Associative Learning Modifies Two Behaviors in the Leech, Hirudo medicinalis Christie L. Sahleyl and Donald F. Ready* ‘Department of Biology, Yale University, New Haven, Connecticut 06.511, and *Department of Biology, Purdue University, West Lafayette, Indiana 47907 We report that 2 behaviors, stepping and shortening, are learning in both speciesis dependent on the contingent as well modified by associative learning in the leech, Hirudo medi- as the contiguous relationships between stimuli (Sahley et al., chalk. Experiment 1 explored conditioning of the “step- 1981a, b; Colwill, 1985; Hawkins et al., 1986; Farley, 1987a), ping” response. Paired presentations of touch to the medial just as is learning in vertebrates (Rescorla, 1968, 1969; Kamin, dorsal surface of the leech and shock to the tail of the leech 1969). Moreover, on the mechanistic level, the identified leam- resulted in the development of stepping to the touch. Leech- ing-dependent changesinvolve second-messengermodulation es in control groups experiencing the CS alone, US alone, of K+ channelsof sensoryneurons (Klein et al., 1982; seeCrow, or explicitly unpaired presentations of the CS and US did 1988, for a review). No data, however, addressthe generality not. In experiments 2-4, classical conditioning explored con- of thesecommon themesin other invertebrate phyla. Will con- ditioning of the touch-elicited shortening reflex. We found tiguity and contingency be as important in the formation of that the reflex was enhanced following paired CS-US pre- associationsin other invertebrates? Will learning-dependent sentations but not following CS alone, US alone, or explicitly changesin behavior be the reflection of similar or dissimilar unpaired presentations of the stimuli. -
Seasonal Variation in the Occurrence of the Medicinal Leech Hirudo Orientalis in Guilan Province, Iran
Vol. 11: 289–294, 2011 AQUATIC BIOLOGY Published online February 23 doi: 10.3354/ab00310 Aquat Biol Seasonal variation in the occurrence of the medicinal leech Hirudo orientalis in Guilan Province, Iran K. Darabi-Darestani, M. Malek* University of Tehran, School of Biology, College of Science, University of Tehran, Tehran, Iran ABSTRACT: Two small populations of medicinal leeches Hirudo orientalis Utevsky & Trontelj, 2005 were sampled monthly over the course of a year (November 2008 to October 2009) in 2 separate regions of Guilan Province in northern Iran. Environmental factors, including host availability, tem- perature and vegetation density (biomass in g km–2) were analyzed to assess their impact on leech populations. The study areas supported only low densities (ind. km–2) of medicinal leeches, mostly due to agricultural activity which has caused habitat destruction and has gradually limited the distri- bution of leeches to small, patchy bodies of water. Agricultural activity is seasonal, so leeches are not affected by this activity equally year round. Leeches were most abundant in May/June, were present in small numbers in July/August, and hibernated from December to March 2009 at both sites. Leech density was significantly correlated with amphibian density (biomass in g km–2), the major hosts in the sample areas. Temperature and aquatic vegetation densities affected leech numbers directly (temperature influencing leech growth rate and vegetation providing shelter from potential preda- tors) and indirectly (due to the impact of temperature and vegetation on the amphibian population, the leeches’ major prey). Leeches of <1 g were found mostly in April and May following hatching, while those >5 g were predominant in September. -
A Systematic Overview of the Medicinal Importance of Sanguivorous Leeches S.M
Review Article amr A Systematic Overview of the Medicinal Importance of Sanguivorous Leeches S.M. Abbas Zaidi, MD; S.S. Jameel, MD; F. Zaman, MD; Shazia Jilani, MD; A. Sultana, MD; Shariq A. Khan, MD S.M. Abbas Zaidi, MD – Lecturer, Department of Abstract leech ingests several times its own weight of Moalijat (Medicine), H.S.Z.H. Leeches are a class of segmented invertebrates, known for blood that may suffice for several months.1,2 Govt. Unani Medical College, their blood-feeding habits and used in phlebotomy to Recent scientific research on salivary compo- Bhopal (M.P.), India Correspondence address: treat various ailments since antiquity. In Europe, medicinal nents has restored its lost reputation. H.S.Z.H. Govt. Unani Medical leeches have recently been rediscovered and are used by Hirudo medicinalis is the most frequently used College, Behind MANIT, maxillofacial and other microsurgeons to aid salvage of species of leech (Figure 1) that is not native to Nehru Nagar-Kolar Bypass Road, Bhopal (M.P.), India compromised venous engorged tissue and amputations, the Indian subcontinent. In India the species Email: [email protected] such as digits, ears, and nasal tips. Because of their used traditionally for therapeutic purposes is important salivary components, blood-sucking (sanguivo- Hirudinaria granulosa. Besides these, Macrobdella S.S. Jameel MD (Unani) – Director General, Central rous) leeches, such as Hirudo medicinalis and related decora (American medicinal leech), Hirudo Council for Research in Unani species, have engendered great interest from pharmaceu- michaelseni, Hirudo nipponia, Hirudo verbena, and Medicine, New Delhi & tical companies searching for anticoagulants to prevent Hirudo orientalis5-9 are also being used for Professor and Head, Depart- ment of Moalijat (Medicine); blood clotting during microsurgeries. -
The Genome of Medicinal Leech (Whitmania Pigra) and Comparative Genomic Study for Exploration of Bioactive Ingredients
The Genome of Medicinal Leech (Whitmania pigra) and comparative genomic study for Exploration of Bioactive Ingredients Lei Tong Kunming University Shao-Xing Dai Kunming University of Science and Technology De-Jun Kong Kunming University Peng-Peng Yang Kunming University of Science and Technology Xin Tong Kunming University of Science and Technology Xiang-Rong Tong Kunming University Xiao-Xu Bi Kunming University Yuan Su Kunming University Yu-Qi Zhao University of California Los Angeles Zi-Chao Liu ( [email protected] ) Kunming University https://orcid.org/0000-0002-7509-6209 Research article Keywords: Whitmania pigra, Genome, Bioactive Ingredients, Helobdella robusta, Hirudo medicinalis Posted Date: October 12th, 2020 DOI: https://doi.org/10.21203/rs.3.rs-31354/v2 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Page 1/20 Abstract Background Leeches are classic annelids that have a huge diversity and closely related to people, especially medicinal leeches. Medicinal leeches have been widely utilized in medicine based on the pharmacological activities of their bioactive ingredients. Comparative genomic study of these leeches enables us to understand the difference among medicinal leeches and other leeches and facilitates the discovery of bioactive ingredients. Results In this study, we reported the genome of Whitmania pigra and compared it with Hirudo medicinalis and Helobdella robusta. The assembled genome size of W. pigra is 177 Mbp, close to the estimated genome. Approximately about 23% of the genome was repetitive. A total of 26,743 protein-coding genes were subsequently predicted. W. pigra have 12346 (46%) and 10295 (38%) orthologous genes with H. -
A New Species of Buffalo Leech in the Genus Hirudinaria Whitman, 1886 (Arhynchobdellida, Hirudinidae) from Thailand
ZooKeys 933: 1–14 (2020) A peer-reviewed open-access journal doi: 10.3897/zookeys.933.49314 RESEARch ARTICLE https://zookeys.pensoft.net Launched to accelerate biodiversity research A new species of buffalo leech in the genus Hirudinaria Whitman, 1886 (Arhynchobdellida, Hirudinidae) from Thailand Ekgachai Jeratthitikul1, Putita Jiranuntskul1, Takafumi Nakano2, Chirasak Sutcharit3, Somsak Panha3 1 Animal Systematics and Molecular Ecology Laboratory, Department of Biology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand 2 Department of Zoology, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan 3 Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chu- lalongkorn University, Bangkok 10330, Thailand Corresponding author: Ekgachai Jeratthitikul ([email protected]) Academic editor: F. Govedich | Received 11 December 2019 | Accepted 7 April 2020 | Published 18 May 2020 http://zoobank.org/A723D282-697A-44E8-856C-609F71696DA6 Citation: Jeratthitikul E, Jiranuntskul P, Nakano T, Sutcharit C, Panha S (2020) A new species of buffalo leech in the genus Hirudinaria Whitman, 1886 (Arhynchobdellida, Hirudinidae) from Thailand. ZooKeys 933: 1–14.https://doi. org/10.3897/zookeys.933.49314 Abstract Hirudinaria manillensis (Lesson, 1842), commonly known as the buffalo leech, shows a polymorphism of two ventral colorations. The green color morph has a plain green ventral surface and the red color morph has a brick-red ventral surface with two black submarginal stripes. Based on molecular and morphological evidence in the present study, these two color morphs were revealed as two different species. The red color morph fits well with the description of H. manillensis, while the green color morph showed some distinc- tions, and therefore is described herein as Hirudinaria thailandica Jeratthitikul & Panha, sp. -
Notification to the Parties No. 2016/006
CONVENTION ON INTERNATIONAL TRADE IN ENDANGERED SPECIES OF WILD FAUNA AND FLORA NOTIFICATION TO THE PARTIES No. 2016/006 Geneva, 5 February 2016 CONCERNING: New implementation report format (formerly known as biennial report) 1. At its 66th meeting (Geneva, January 2016), the Standing Committee adopted a new implementation report format that is not subject to compliance procedures. The last biennial report for 2013-2014 was due on 31 October 2015. To reflect the three year cycle between meetings of the Conference of the Parties, the implementation report covering the period 2015-2017 is due on 31 October 2018. 2. Subject to the availability of external funds, the Secretariat will make a version of the implementation report available using the CITES Online Reporting System by 31 October 2017 (at least a year in advance of the deadline set for submission of reports to the 18th Conference of the Parties). 3. The new implementation report format can be found in the Annex to this Notification. 4. This Notification replaces Notification to the Parties No. 2005/035 of 6 July 2005. International Environment House • Chemin des Anémones • CH-1219 Châtelaine, Geneva • Switzerland Tel: +41 (22) 917 81 39/40 • Fax: +41 (22) 797 34 17 • Email: [email protected] • Web: http://www.cites.org Notification No. 2016/006 page 2 Annex Implementation report format The format below follows the structure of the CITES Strategic Vision: 2008-2020 and aims to collect information to enable the Strategic Vision indicators to be implemented. CITES vision statement Conserve biodiversity and contribute to its sustainable use by ensuring that no species of wild fauna or flora becomes or remains subject to unsustainable exploitation through international trade, thereby contributing to the significant reduction of the rate of biodiversity loss and making a significant contribution towards achieving the relevant Aichi Biodiversity Targets. -
Hirudinea: Arhynchobdellida: Hirudinidae) in Romania
Travaux du Muséum National d’Histoire Naturelle © Décembre Vol. LIII pp. 7–11 «Grigore Antipa» 2010 DOI: 10.2478/v10191-010-0001-z THE FIRST RECORDED OCCURRENCE OF HIRUDO VERBANA CARENA, 1820 (HIRUDINEA: ARHYNCHOBDELLIDA: HIRUDINIDAE) IN ROMANIA ADRIAN GAGIU Abstract. In 2005, a Hirudo verbana specimen was observed in Stracoº Valley, within the Tãºad Reserve (Bihor county, north-western Romania). Since the coloration pattern of this once forgotten species matches its genetic differentiation, the identification of the specimen as belonging to the south- eastern European H. verbana appears plausible. The species was previously cited in southern, central and eastern Europe, but not in Romania. Therefore, the present observation might be its first recognized occurrence in the country. As recently pointed out, H. verbana is one of the three species commonly known as the European medicinal leech and the most abundant as such. Most international and national conservation legislation containing only H. medicinalis (including IUCN, CITES, Berne Convention) needs completion, according to the new taxonomy. Résumé. Un spécimen d’Hirudo verbana a été observé en 2005 dans la vallée Stracoº de la réservation naturelle Tãºad (Bihor, dans le nord-ouest de la Roumanie). Lorsque le modèle de la coloration de cette espèce récemment révalidée correspond à sa caractérisation génétique, l’identification du spécimen observé est plausible. L’aréal connu d’Hirudo verbana comprend le sud, le centre et l’est de l’Europe, mais pas la Roumanie, donc cette obsérvation est la première occurence documentée dans ce pays. Récemment a été démontré que H. verbana est une des trois espèces de sangsues médicinales européennes et la plus utilisée. -
Reproduction Efficiency of the Medicinal Leech Hirudo Verbana Carena
www.trjfas.org ISSN 1303-2712 Turkish Journal of Fisheries and Aquatic Sciences 15: 411-418 (2015) DOI: 10.4194/1303-2712-v15_2_27 Reproduction Efficiency of the Medicinal Leech Hirudo verbana Carena, 1820 Mustafa Ceylan1,*, Osman Çetinkaya2, Ramazan Küçükkara1, Ufuk Akçimen1 1 Fisheries Research Institute, Eğirdir, Isparta, Turkey. 2 University of Süleyman Demirel, Eğirdir Fisheries Faculty, Isparta, Turkey. * Corresponding Author: Tel.:+90.246 3133460; Fax:+90.246 3133463; Received 14 January 2015 E-mail: [email protected] Accepted 21 May 2015 Abstract The aim of the study was to investigate the reproduction efficiency of a medicinal leech Hirudo verbana Carena, 1820. Totally 25 gravid medicinal leeches weighted 5.70±3.22 g were used. The leeches deposited 3.20±1.87 cocoons by losing 23.46±5.42% in body weight in every cocooning at 9.67±3.68 days intervals. The cocoons, having a weight 0.93±0.38 g, diameter 13.81±2.26 mm and length 21.44±3.81 mm, had 12.29±5.14 offspring weighted 29.11±13.62 mg. It was determined the negative correlation between the adult leeches weight and the weight loss percentage after each cocoon deposition, between the adult leeches weight and the cocoon deposition frequency, and between the number of offspring and the mean weight of them. The positive correlation was found between the adult leech weights and the number of the laid cocoons, between the adult leech weight and the laid cocoon weight, and between the cocoon weight and the number of offspring. H. verbena shows strong reproduction effort, it can reproduce even loosing 70% their initial weights. -
Draft Genome Sequences of Hirudo Medicinalis and Salivary Transcriptome of Three Closely Related Medicinal Leeches Vladislav V
Babenko et al. BMC Genomics (2020) 21:331 https://doi.org/10.1186/s12864-020-6748-0 RESEARCH ARTICLE Open Access Draft genome sequences of Hirudo medicinalis and salivary transcriptome of three closely related medicinal leeches Vladislav V. Babenko1* , Oleg V. Podgorny1,2, Valentin A. Manuvera1,3, Artem S. Kasianov3,4, Alexander I. Manolov1, Ekaterina N. Grafskaia1,3, Dmitriy A. Shirokov1, Alexey S. Kurdyumov1, Dmitriy V. Vinogradov5,6, Anastasia S. Nikitina1,3, Sergey I. Kovalchuk1,7, Nickolay A. Anikanov1,7, Ivan O. Butenko1, Olga V. Pobeguts1, Daria S. Matyushkina1, Daria V. Rakitina1, Elena S. Kostryukova1, Victor G. Zgoda8, Isolda P. Baskova9, Vladimir M. Trukhan10, Mikhail S. Gelfand5,6,11,12, Vadim M. Govorun1,3, Helgi B. Schiöth10,13 and Vassili N. Lazarev1,3 Abstract Background: Salivary cell secretion (SCS) plays a critical role in blood feeding by medicinal leeches, making them of use for certain medical purposes even today. Results: We annotated the Hirudo medicinalis genome and performed RNA-seq on salivary cells isolated from three closely related leech species, H. medicinalis, Hirudo orientalis, and Hirudo verbana. Differential expression analysis verified by proteomics identified salivary cell-specific gene expression, many of which encode previously unknown salivary components. However, the genes encoding known anticoagulants have been found to be expressed not only in salivary cells. The function-related analysis of the unique salivary cell genes enabled an update of the concept of interactions between salivary proteins and components of haemostasis. Conclusions: Here we report a genome draft of Hirudo medicinalis and describe identification of novel salivary proteins and new homologs of genes encoding known anticoagulants in transcriptomes of three medicinal leech species. -
Draft Genome of the European Medicinal Leech Hirudo Medicinalis (Annelida, Clitellata, Hirudiniformes) with Emphasis on Anticoag
www.nature.com/scientificreports OPEN Draft genome of the European medicinal leech Hirudo medicinalis (Annelida, Clitellata, Hirudiniformes) with emphasis on anticoagulants Sebastian Kvist1,2 ✉ , Alejandro Manzano-Marín3, Danielle de Carle1,2, Peter Trontelj4 & Mark E. Siddall5 The European medicinal leech has been used for medicinal purposes for millennia, and continues to be used today in modern hospital settings. Its utility is granted by the extremely potent anticoagulation factors that the leech secretes into the incision wound during feeding and, although a handful of studies have targeted certain anticoagulants, the full range of anticoagulation factors expressed by this species remains unknown. Here, we present the frst draft genome of the European medicinal leech, Hirudo medicinalis, and estimate that we have sequenced between 79–94% of the full genome. Leveraging these data, we searched for anticoagulation factors across the genome of H. medicinalis. Following orthology determination through a series of BLAST searches, as well as phylogenetic analyses, we estimate that fully 15 diferent known anticoagulation factors are utilized by the species, and that 17 other proteins that have been linked to antihemostasis are also present in the genome. We underscore the utility of the draft genome for comparative studies of leeches and discuss our results in an evolutionary context. Notwithstanding the signifcance of the European medicinal leech Hirudo medicinalis Linnaeus, 1758 as a med- ical tool from antiquity through modern science-based medicine, it is remarkable that this species’ repertoire of anticoagulants and other bioactive salivary proteins has escaped published in-depth investigation (but see1). In order to maintain blood fow in the tissues surrounding the incision wounds during their extended periods of feeding and, importantly, keeping the blood from clotting inside of the crop during the periods of digestion, bloodfeeding leeches secrete a variety of bioactive compounds from their salivary glands.