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PDF 4.36 MB
master's thesis
6
3
Morphology and molecular phylogeny of the genus Branchiobdella Odier, 1823 (Annelida: Clitellata) in Croatia
Ivana Šarić (2014)
University of Zagreb
Faculty of Science
Department of Biology
Cite this item:
https://urn.nsk.hr/urn:nbn:hr:217:491288
Metadata
Title
Morfološke i molekularno-filogenetske značajke roda Branchiobdella Odier, 1823 (Annelida: Clitellata) u Hrvatskoj
Author
Ivana Šarić
Mentor(s)
Ivana Maguire
(thesis advisor)
Goran Klobučar
(thesis advisor)
Abstract
Branhiobdele su skupina holarktički rasprostranjenih malih kolutićavaca koji žive kao epibionti na slatkovodnim rakovima iz porodica Astacidae i Cambaridae. U Hrvatskoj nalazimo šest vrsta branhiobdela, koje sve pripadaju rodu Branchiobdella, te žive kao epibionti na vrstama rakova Austropotamobius pallipes, Austropotamobius torrentium i Astacus astacus. Cilj ovog istraživanja bio je morfološka determinacija vrsta branhiobdela s rakova iz roda Austropotamobius te utvrđivanje molekularnofilogenetskih odnosa između vrsta branhiobdela. Na rakovima roda Austropotamobius sa 74 lokaliteta utvrđene su sljedeće vrste branhobdela: Branchiobdella astaci, Branchiobdella hexodonta, Branchiobdella parasita, Branchiobdella pentodonta i Branchiobdella italica. Utvrđeno je 50 novih lokaliteta na kojima su pronađene branhiobdele na rakovima roda Austropotamobius u Hrvatskoj. Molekularno–filogenetski odnosi između vrsta roda Branchiobdella u Hrvatskoj utvrđeni su genskim markerima za podjedinicu 1 citokrom C oksidaze (COI) i 16S rRNA. Analizom odnosa između i unutar pojedinih taksona na filogenetskom stablu i pomoću izračuna p-distanci, zaključeno je kako je moguće da su procesi koji su doveli do specijacije unutar roda Austropotamobius također utjecali i na specijaciju samih branhiobdela.
Keywords
Austropotamobius
branchiobdellidans
distribution
epibionts
p-distance
COI
16S rRNA
Parallel title (English)
Morphology and molecular phylogeny of the genus Branchiobdella Odier, 1823 (Annelida: Clitellata) in Croatia
Committee Members
Ivana Maguire
(committee chairperson)
Duje Lisičić
(committee member)
Mirta Tkalec
(committee member)
Goran Klobučar
(committee member)
Granter
University of Zagreb
Faculty of Science
Lower level organizational units
Department of Biology
Place
Zagreb
State
Croatia
Scientific field, discipline, subdiscipline
NATURAL SCIENCES
Biology
Study programme type
university
Study level
graduate
Study programme
Experimental Biology
Academic title abbreviation
mag. biol. exp.
Genre
master's thesis
Language
Croatian
Defense date
2014-06-18
Parallel abstract (English)
Branchiobdellidans are ectosymbiotic annelids that are primarily associated with freshwater crayfish from the Astacidae and Cambaridae families. They have a Holartic distribution. Six species of branchiobdellidans have been reported in Croatia, all of them belong to the Branchiobdella genus. Three native Croatian species of crayfish have been reported as hosts: Austropotamobius pallipes, Austropotamobius torrentium and Astacus astacus. The objectives of this research were to morphologically identify the branchiobdellidan species living on crayfish from the Austropotamobius genus and to infer a molecular phylogeny between them. The examination of crayfish from 74 water body sites revealed the existence of five branchiobdellidan species: Branchiobdella astaci, Branchiobdella hexodonta, Branchiobdella parasita, Branchiobdella pentodonta and Branchiobdella italica. Branchiobdellidan presence has been identified in fifty new locations in Croatia. Nucleotide sequences of two mitochondrial genes (COI and 16S rRNA) have been used to estimate phylogenetic relationships between the species from the genus Branchiobdella. The results of the phylogenetic analyses, based on the examination of the constructed phylogenetic trees and values of p-distances, indicate that the same process that led to the speciation of the genus Austropotamobius in Croatia, also caused the speciation of studied branchiobdellidans.
Parallel keywords (Croatian)
Austropotamobius
branhiobdele
epibionti
p-distance
rasprostranjenost
COI
16S rRNA
Resource type
text
Access condition
Open access
Terms of use
URN:NBN
https://urn.nsk.hr/urn:nbn:hr:217:491288
Committer
Palma Dizdarević