Sequence data support greater taxonomic diversity and a complicated history of hybridisation in New Zealand’s sun orchids - Thelymitra (Orchidaceae)

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dc.citation.volumeLatest Articles
dc.contributor.authorJones HR
dc.contributor.authorLehnebach CA
dc.contributor.authorTate JA
dc.date.accessioned2025-07-18T03:05:44Z
dc.date.available2025-07-18T03:05:44Z
dc.date.issued2025-06-26
dc.description.abstractThelymitra, commonly known as sun orchids, is a genus of orchids present in New Zealand (NZ), known for their radially symmetrical and brightly coloured flowers. A long history of nomenclatural changes, and a recent and rapid circumscription of Australian (AU) taxa has left our understanding of this genus in NZ lagging. In this study we report two phylogenies of NZ Thelymitra species, based on nuclear (LFY) and plastid (ycf1) sequence data. The phylogenies identify support for several taxa currently only known by tag-names as being distinct from those that are currently described both in NZ and AU, as well as evidence supporting an extensive history of hybrid speciation in this genus in NZ, which had been hypothesised previously for six species. This work has also found evidence for species complexes within NZ Thelymitra that need further molecular and taxonomic work to fully resolve species boundaries. In this study we also demonstrate a novel application of nanopore sequencing of amplicons, that enables the recovery of multiple sequence copies in allopolyploid taxa without the prior need for cloning.
dc.description.confidentialfalse
dc.format.pagination1-23
dc.identifier.citationJones HR, Lehnebach CA, Tate JA. (2025). Sequence data support greater taxonomic diversity and a complicated history of hybridisation in New Zealand’s sun orchids - Thelymitra (Orchidaceae). New Zealand Journal of Botany. Latest Articles. (pp. 1-23).
dc.identifier.doi10.1080/0028825X.2025.2523007
dc.identifier.eissn1175-8643
dc.identifier.elements-typejournal-article
dc.identifier.issn0028-825X
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/73213
dc.languageEnglish
dc.publisherTaylor and Francis Group on behalf of the Royal Society of New Zealand
dc.publisher.urihttps://www.tandfonline.com/doi/full/10.1080/0028825X.2025.2523007
dc.relation.isPartOfNew Zealand Journal of Botany
dc.rights(c) 2025 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectAllopolyploidy
dc.subjecthybridisation
dc.subjectLFY
dc.subjectmolecular phylogeny
dc.subjectnanopore sequencing
dc.subjectNew Zealand
dc.subjectorchids
dc.subjecttaxonomy
dc.subjectThelymitra
dc.subjectYcf1
dc.titleSequence data support greater taxonomic diversity and a complicated history of hybridisation in New Zealand’s sun orchids - Thelymitra (Orchidaceae)
dc.typeJournal article
pubs.elements-id501510
pubs.organisational-groupOther
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