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Molecular phylogenetics and geometric morphometrics of aerophytic green algae of Coccomyxa/Pseudococcomyxa s.l. complex
dc.contributor.advisorNeustupa, Jiří
dc.creatorNemjová, Katarína
dc.date.accessioned2017-04-18T07:56:00Z
dc.date.available2017-04-18T07:56:00Z
dc.date.issued2009
dc.identifier.urihttp://hdl.handle.net/20.500.11956/20021
dc.description.abstractThis thesis deals with molecular diversity and shape variation of the traditionally delimited unicellular coccoid genera Coccomyxa SCHMIDLE and Pseudococcomyxa KORŠIKOV (Trebouxiophyceae, Viridiplantae). The complex of these traditional genera was found monophyletic position within the class Trebouxiophyceae on the basis of 18S rDNA sequences. Subdivision of this lineage into individual clades was based on 18S rDNA, ITS1 and ITS2 sequences. The results did not confirm delimitation of traditional genera. However, they suggest ecological differentiation of individual clades. The results of phylogenetic analyses were further supported by reconstructions of ITS2 secondary structures and analyses of the compensatory base changes (CBC) among individual clades. The mutual relationships among clades remained, however, partially unclear. Geometric morphometric variation of cell shapes illustrated pattern that was mostly not correlated with molecular data. This indicates high degree of evolutionary plasticity and possible unreliability of these morphological features in taxonomy of the group. Powered by TCPDF (www.tcpdf.org)en_US
dc.languageSlovenčinacs_CZ
dc.language.isosk_SK
dc.publisherUniverzita Karlova, Přírodovědecká fakultacs_CZ
dc.titleMolekulárna fylogenetika a geometrická morfometrika aerofytických zelených rias komplexu Coccomyxa/Pseudococcomyxa s.l.sk_SK
dc.typediplomová prácecs_CZ
dcterms.created2009
dcterms.dateAccepted2009-05-25
dc.description.departmentDepartment of Botanyen_US
dc.description.departmentKatedra botanikycs_CZ
dc.description.facultyFaculty of Scienceen_US
dc.description.facultyPřírodovědecká fakultacs_CZ
dc.identifier.repId37244
dc.title.translatedMolecular phylogenetics and geometric morphometrics of aerophytic green algae of Coccomyxa/Pseudococcomyxa s.l. complexen_US
dc.contributor.refereeHampl, Vladimír
dc.identifier.aleph001114862
thesis.degree.nameMgr.
thesis.degree.levelnavazující magisterskécs_CZ
thesis.degree.disciplineBotanikacs_CZ
thesis.degree.disciplineBotanyen_US
thesis.degree.programBiologiecs_CZ
thesis.degree.programBiologyen_US
uk.faculty-name.csPřírodovědecká fakultacs_CZ
uk.faculty-name.enFaculty of Scienceen_US
uk.faculty-abbr.csPřFcs_CZ
uk.degree-discipline.csBotanikacs_CZ
uk.degree-discipline.enBotanyen_US
uk.degree-program.csBiologiecs_CZ
uk.degree-program.enBiologyen_US
thesis.grade.csVýborněcs_CZ
thesis.grade.enExcellenten_US
uk.abstract.enThis thesis deals with molecular diversity and shape variation of the traditionally delimited unicellular coccoid genera Coccomyxa SCHMIDLE and Pseudococcomyxa KORŠIKOV (Trebouxiophyceae, Viridiplantae). The complex of these traditional genera was found monophyletic position within the class Trebouxiophyceae on the basis of 18S rDNA sequences. Subdivision of this lineage into individual clades was based on 18S rDNA, ITS1 and ITS2 sequences. The results did not confirm delimitation of traditional genera. However, they suggest ecological differentiation of individual clades. The results of phylogenetic analyses were further supported by reconstructions of ITS2 secondary structures and analyses of the compensatory base changes (CBC) among individual clades. The mutual relationships among clades remained, however, partially unclear. Geometric morphometric variation of cell shapes illustrated pattern that was mostly not correlated with molecular data. This indicates high degree of evolutionary plasticity and possible unreliability of these morphological features in taxonomy of the group. Powered by TCPDF (www.tcpdf.org)en_US
uk.publication-placePrahacs_CZ
uk.grantorUniverzita Karlova, Přírodovědecká fakulta, Katedra botanikycs_CZ


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