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master's thesis
Genska struktura i raznolikost potočne pastrve, Salmo trutta Linnaeus, 1758 šireg područja Plitvičkih jezera
Zagreb: University of Zagreb, Faculty of Science, 2018. urn:nbn:hr:217:099508
Raguž, Lucija
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

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Raguž, L. (2018). Genska struktura i raznolikost potočne pastrve, Salmo trutta Linnaeus, 1758 šireg područja Plitvičkih jezera (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:099508

Raguž, Lucija. "Genska struktura i raznolikost potočne pastrve, Salmo trutta Linnaeus, 1758 šireg područja Plitvičkih jezera." Master's thesis, University of Zagreb, Faculty of Science, 2018. https://urn.nsk.hr/urn:nbn:hr:217:099508

Raguž, Lucija. "Genska struktura i raznolikost potočne pastrve, Salmo trutta Linnaeus, 1758 šireg područja Plitvičkih jezera." Master's thesis, University of Zagreb, Faculty of Science, 2018. https://urn.nsk.hr/urn:nbn:hr:217:099508

Raguž, L. (2018). 'Genska struktura i raznolikost potočne pastrve, Salmo trutta Linnaeus, 1758 šireg područja Plitvičkih jezera', Master's thesis, University of Zagreb, Faculty of Science, accessed 23 December 2024, https://urn.nsk.hr/urn:nbn:hr:217:099508

Raguž L. Genska struktura i raznolikost potočne pastrve, Salmo trutta Linnaeus, 1758 šireg područja Plitvičkih jezera [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2018 [cited 2024 December 23] Available at: https://urn.nsk.hr/urn:nbn:hr:217:099508

L. Raguž, "Genska struktura i raznolikost potočne pastrve, Salmo trutta Linnaeus, 1758 šireg područja Plitvičkih jezera", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:217:099508

Metadata
TitleGenska struktura i raznolikost potočne pastrve, Salmo trutta Linnaeus, 1758 šireg područja Plitvičkih jezera
Title (english)Genetic structure and diversity of the brown trout, Salmo trutta Linnaeus, 1758 from the wider area of Plitvice Lakes
AuthorLucija Raguž
MentorIvana Buj (mentor)
Committee memberIvana Buj (član povjerenstva)
Committee memberMirela Sertić Perić (član povjerenstva)
Committee memberNenad Judaš (član povjerenstva)
Committee memberVesna Petrović Peroković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2018-03-16, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Jedna od vrsta koja nastanjuje hlade i brze vodotoke rječica i potoka koji opskrbljuju vodom Plitvička jezera je potočna pastrva Salmo trutta Linnaeus, 1758. Osnovna taksonomija roda Salmo na europskoj razini još uvijek nije uređena, a unutar Hrvatske se ne zna koliki broj vrsta roda Salmo obitava u vodotocima, niti koliki je udio alohtonih vrsta/linija te čistih i mješovitih populacija. Cilj provedenog istraživanja bio je utvrditi: točnu taksonomsku pripadnost i filogenetski položaj potočnih pastrva šireg područja Plitvičkih jezera, gensku strukturu i raznolikost pojedinih populacija potočne pastrve na širem području Plitvičkih jezera te gensku različitost i protok gena između pojedinih populacija. Kako bi se utvrdili srodstveni odnosi među pastrvama šireg područja Plitvičkih jezera i njihov položaj unutar filogenetskog stabla roda Salmo, provedena je filogenetska rekonstrukcija temeljena je na sekvencama gena za citokrom b (cyt b) korištenjem sljedećih metoda: metoda najveće parsimonije (MP), metoda najveće vjerojatnosti (ML), Bayesova metode (BAY) i metoda susjednog povezivanja (MJ). Dobivena filogenetska stabla i mreža potvrdili su da na širem području Plitvičkih jezera obitavaju dvije evolucijski nezavisne linije potočne pastrve, obje vjerojatno autohtone. Pronađene su čiste populacije obje linije, ali i više mješovitih populacija, unutar kojih svaka svojta zadržava svoju gensku osebujnost. Utvrđena je niska intraspecijska i intrapopulacijska raznolikost pronađenih svojti, a statistički testovi interspecijske genske različitosti ukazali su na gensku izoliranost populacija i onemogućen protok gena. Procijenjene su male efektivne veličine populacija i slaba povezanost populacija što je posljedica fragmentacije i degradacije staništa.
Abstract (english)
One of the species that inhabits cold and fast watercourses and streams that supply Plitvice Lakes is brown trout Salmo trutta Linnaeus, 1758. Basic taxonomy of genus Salmo in Europe is not settled, also it’s still not clear neither how many species of genus Salmo inhabits the watercourses of Croatia nor the proportion of allochthonous species/lineages, pure and admixed populations. The aim of this study was to determine: exact taxonomic status and phylogenetic position of the brown trout from the wider area of Plitvice Lakes, genetic structure and diversity of the brown trout populations, genetic differentiation and gene flow between populations. To determine relations between trouts from wider area of Plitvice Lakes and their position in phylogenetic tree of Salmo genus, phylogenetic reconstruction based on cytochrome b (cyt b) sequences was conducted using following methods: maximum parsimony (MP), maximum likelihood (ML), Bayesian method (BAY) and median joining (MJ). Phylogenetic trees and network revealed that the wider area of Plitvice Lakes is inhabited by two evolutionary independent lineages of the brown trout, both of them probably autochthonous. Pure populations of both lineages were found and several admixed populations in which both lineages retain their genetic uniqueness. Low intraspecific and intrapopulation diversity of both lineages are determined, furthermore statistic tests of genetic differentiation indicate isolation of populations and restricted gene flow. Small effective sizes of populations and weak interconnections between populations are estimated, and are most likely consequence of fragmentation and habitat degradation.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:099508
Study programmeTitle: Integrated undergraduate and graduate university study of Biology and Chemistry Education; specializations in: Integrated undergraduate and graduate university study of Biology and Chemistry Education
Course: Integrated undergraduate and graduate university study of Biology and Chemistry Education
Study programme type: university
Study level: integrated undergraduate and graduate
Academic / professional title: magistar/magistra edukacije biologije i kemije (magistar/magistra edukacije biologije i kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2020-03-16
Terms of useLicence In copyright icon
Created on2018-05-16 08:49:30