Resolving reticulate evolutionary histories of polyploid species of Azorella (Apiaceae) endemic to New Zealand

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dc.citation.volume214
dc.contributor.authorNing W
dc.contributor.authorMeudt HM
dc.contributor.authorNicolas AN
dc.contributor.authorPlunkett GM
dc.contributor.authorHeenan PB
dc.contributor.authorLee WG
dc.contributor.authorTate JA
dc.date.accessioned2025-10-12T22:40:30Z
dc.date.available2025-10-12T22:40:30Z
dc.date.issued2026-01
dc.description.abstractGenera with species of multiple ploidy levels provide models to understand successive rounds of whole genome duplication leading to intricate reticulate relationships of polyploid plant species. Here, we studied 17 polyploid taxa (species, subspecies, or varieties) in Azorella (Apiaceae) sections Schizeilema and Stilbocarpa that are mostly endemic to New Zealand. Using phylogenomic approaches, our goals were to resolve species relationships, determine the origins of the higher-level polyploids (6x and 10x), and assess the biogeography of the New Zealand Azorella species. Phylogenomic analysis of Anigosperms353 baits-captured Hyb-Seq data, together with comparison of phylogenies reconstructed using genome-skimming retrieved nrDNA and plastome sequences, showed that species diversification within New Zealand may relate to multiple origins from South America, which has been further shaped by additional rounds of polyploidy as well as hybridization or introgression. The two Azorella sections in New Zealand likely resulted from different biogeographic events from South America − one to the subantarctic islands (section Stilbocarpa) and a second to the South Island (section Schizeilema). In addition, within section Schizeilema, species have dispersed from the South Island (New Zealand) to Australia, the subantarctic islands, and the North Island (New Zealand). Our combined approach of phylogenomic analyses of plastome and nuclear locus-based data, together with SNP-based network approaches allowed us to determine the origins of some higher-level polyploids in New Zealand Azorella and revealed a more complex picture of historical and ongoing polyploidy and hybridization within these lineages.
dc.description.confidentialfalse
dc.edition.editionJanuary 2026
dc.identifier.author-urlhttps://orcid.org/0000-0001-5138-2115
dc.identifier.citationNing W, Meudt HM, Nicolas AN, Plunkett GM, Heenan PB, Lee WG, Tate JA. (2026). Resolving reticulate evolutionary histories of polyploid species of Azorella (Apiaceae) endemic to New Zealand. Molecular Phylogenetics and Evolution. 214.
dc.identifier.doi10.1016/j.ympev.2025.108469
dc.identifier.eissn1095-9513
dc.identifier.elements-typejournal-article
dc.identifier.issn1055-7903
dc.identifier.number108469
dc.identifier.piiS1055790325001861
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/73676
dc.languageEnglish
dc.publisherElsevier Inc, USA
dc.publisher.urihttps://www.sciencedirect.com/science/article/pii/S1055790325001861
dc.relation.isPartOfMolecular Phylogenetics and Evolution
dc.rights(c) 2025 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectAngiosperms353
dc.subjectBiogeography
dc.subjectHybridization
dc.subjectGenome-skimming
dc.subjectNetwork
dc.subjectPolyploid
dc.subjectPhylogenomics
dc.titleResolving reticulate evolutionary histories of polyploid species of Azorella (Apiaceae) endemic to New Zealand
dc.typeJournal article
pubs.elements-id503429
pubs.organisational-groupOther
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