Utvrđivanje srodstvenih odnosa unutar tribusa Alysseae (Brassicaceae) analizom sekvenci ITS

master's thesis

• Title (english): Determination of the relationships within Alysseae (Brassicaceae) tribe by analizing sequences ITS
• Author: Antonija Denona
• Mentor: Zlatko Liber (mentor)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2011, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Cilj ovog diplomskog rada bio je određivanje filogenetskih odnosa odabranih vrsta unutar tribusa Alysseae (Brassicaceae). Jezgrene ITS regije su analizirane kod 30 vrsta. Kao filogenetska metoda upotrebljena je metoda Maksimalne parsimonije. Dobiveno filogenetsko stablo podržavalo je gledište po kojem je rod Alyssum polifiletski rod sastavljen od dvije evolucijski odvojene linije. Nakon filogenetske analize, kao zasebna evolucijska linija izdvojile su se vrste: Lobularia maritima, Farsetia aegyptica i Morettia philaena. Smještaj vrste Hormatophylla spinosa na filogenetskom stablu ukazuje na odvojen taksonomski status ovog roda izvan roda Alyssum. Analizirani uzorci vrsta roda Aurinia potvrdili su odvojenost ovog roda kao zasebnog roda izvan roda Alyssum. Isto tako je potvrđena odvojenost roda Galitzkya od roda Berteroa. Budući da su se vrste Fibigia triquetra i Fibigia clypeata odijelile u zasebne grane, upitna je monofilija roda Fibigia. Za potpuno razrješavanje taksonomske problematike ovog roda nužno je izvršiti dodatna istraživanja.

Abstract (english)

The aim of this study was to determine the phylogenetic relations among selected species within the tribe Alysseae (Brassicaceae). Nuclear ITS regions of 30 species were analysed. The Maximum parsimony method was used for phylogenetic analysis. Derived phylogenetic tree supported the view according to which the genus Alyssum is a polyphyletic genus composed of two separate evolutionary lines. After the phylogenetic analysis as separate evolutionary line seceded the species: Lobularia maritima, Farsetia aegyptica i Morettia philaena. The position of the Hormatophylla spinosa species on the phylogenetic tree suggested a separate taxonomical status of this genus from the genus Alyssum. Analyzed samples of species from Aurinia genus confirmed the separation of this genus from the genus Alyssum, it is also confirmed the separtion of genus Galitzkya from the genus Berteroa. The monophyletic status of the genus Fibigia is questionable since two studied species (F. triquetra and F. clypeata) were separated in two clades. For complete resolution of the taxonomical problem of this genus additional studies are necessary.

• Keywords: Alysseae; ITS regija; filogenija
• Keywords (english): Alysseae; ITS region; phylogeny
• Language: croatian
• URN:NBN: urn:nbn:hr:217:859553
• Study programme: Title: Biology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra edukacije biologije (magistar/magistra edukacije biologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-04-05 10:23:28