{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Pungarsek S"],"funding":["Austrian Academy of Sciences (Österreichische Akademie der Wissenschaften)","Austrian Academy of Sciences","Slovenian Research Agency","Slovenian Research Agency (ARRS) and the Austrian Agency for Education and Internationalisa-tion (ÖAD)"],"pagination":["973"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9960804"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["12(4)"],"pubmed_abstract":["Polyploidisation, agmatoploidy and symploidy have driven the diversification of <i>Luzula</i> sect. <i>Luzula</i>. Several morphologically very similar species with different karyotypes have evolved, but their evolutionary origins and relationships are unknown. In this study, we used a combination of relative genome size and karyotype estimations as well amplified fragment length polymorphism (AFLP) fingerprinting to investigate the relationships among predominately (sub)alpine <i>Luzula alpina</i>, <i>L. exspectata, L multiflora</i> and <i>L. sudetica</i> in the Eastern Alps, including also some samples of <i>L. campestris</i> and <i>L. taurica</i> as outgroup. Our study revealed common co-occurrence of two or three different ploidies (di-, tetra- and hexaploids) at the same localities, and thus also common co-occurrence of different species, of which <i>L. sudetica</i> was morphologically, ecologically and genetically most divergent. Whereas agmatoploid <i>L. exspectata</i> likely originated only once from the Balkan <i>L. taurica</i>, and hexaploid <i>L. multiflora</i> once from tetraploid <i>L. multiflora</i>, the AFLP data suggest multiple origins of tetraploid <i>L. multiflora</i>, from which partly agmatoploid individuals of <i>L. alpina</i> likely originated recurrently by partial fragmentation of the chromosomes. In contrast to common recurrent formation of polyploids in flowering plants, populations of agmatoploids resulting by fission of complete chromosome sets appear to have single origins, whereas partial agmatoploids are formed recurrently. Whether this is a general pattern in <i>Luzula</i> sect. <i>Luzula,</i> and whether segregation of ecological niches supports the frequent co-occurrence of closely related cytotypes in mixed populations, remains the subject of ongoing research."],"journal":["Plants (Basel, Switzerland)"],"pubmed_title":["Disentangling Relationships among the Alpine Species of <i>Luzula</i> Sect. <i>Luzula</i> (Juncaceae) in the Eastern Alps."],"pmcid":["PMC9960804"],"funding_grant_id":["ÖAD;SI 09/2018","SI 09/2018","Knoll-Stiftung","P1-0212"],"pubmed_authors":["Dolenc Koce J","Barfuss MHJ","Schonswetter P","Bacic M","Pungarsek S","Frajman B"],"additional_accession":[]},"is_claimable":false,"name":"Disentangling Relationships among the Alpine Species of <i>Luzula</i> Sect. <i>Luzula</i> (Juncaceae) in the Eastern Alps.","description":"Polyploidisation, agmatoploidy and symploidy have driven the diversification of <i>Luzula</i> sect. <i>Luzula</i>. Several morphologically very similar species with different karyotypes have evolved, but their evolutionary origins and relationships are unknown. In this study, we used a combination of relative genome size and karyotype estimations as well amplified fragment length polymorphism (AFLP) fingerprinting to investigate the relationships among predominately (sub)alpine <i>Luzula alpina</i>, <i>L. exspectata, L multiflora</i> and <i>L. sudetica</i> in the Eastern Alps, including also some samples of <i>L. campestris</i> and <i>L. taurica</i> as outgroup. Our study revealed common co-occurrence of two or three different ploidies (di-, tetra- and hexaploids) at the same localities, and thus also common co-occurrence of different species, of which <i>L. sudetica</i> was morphologically, ecologically and genetically most divergent. Whereas agmatoploid <i>L. exspectata</i> likely originated only once from the Balkan <i>L. taurica</i>, and hexaploid <i>L. multiflora</i> once from tetraploid <i>L. multiflora</i>, the AFLP data suggest multiple origins of tetraploid <i>L. multiflora</i>, from which partly agmatoploid individuals of <i>L. alpina</i> likely originated recurrently by partial fragmentation of the chromosomes. In contrast to common recurrent formation of polyploids in flowering plants, populations of agmatoploids resulting by fission of complete chromosome sets appear to have single origins, whereas partial agmatoploids are formed recurrently. Whether this is a general pattern in <i>Luzula</i> sect. <i>Luzula,</i> and whether segregation of ecological niches supports the frequent co-occurrence of closely related cytotypes in mixed populations, remains the subject of ongoing research.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Feb","modification":"2025-04-04T08:52:44.328Z","creation":"2025-04-04T08:52:44.328Z"},"accession":"S-EPMC9960804","cross_references":{"pubmed":["36840321"],"doi":["10.3390/plants12040973"]}}