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dc.contributor.authorWright, Sarah A.en_NZ
dc.contributor.authorHutchison, Melissaen_NZ
dc.contributor.authorHale, Marie L.en_NZ
dc.contributor.authorGemmill, Chrissen E.C.en_NZ
dc.contributor.authorde Lange, Peter J.en_NZ
dc.contributor.authorPelser, Pieter B.en_NZ
dc.date.accessioned2017-09-25T03:32:19Z
dc.date.available2017en_NZ
dc.date.available2017-09-25T03:32:19Z
dc.date.issued2017en_NZ
dc.identifier.citationWright, S. A., Hutchison, M., Hale, M. L., Gemmill, C. E. C., de Lange, P. J., & Pelser, P. B. (2017). A preliminary conservation genetic study of Pittosporum obcordatum (Pittosporaceae), an endemic New Zealand species with a disjunct distribution. New Zealand Journal of Botany. https://doi.org/10.1080/0028825X.2017.1363789en
dc.identifier.issn0028-825Xen_NZ
dc.identifier.urihttps://hdl.handle.net/10289/11357
dc.description.abstractPittosporum obcordatum (Pittosporaceae; heart-leaved kōhūhū) is an endemic New Zealand plant species that is classified as Threatened - Nationally Vulnerable. It has a disjunct distribution and is only known from relatively few and small populations. Using 10 Inter-Simple Sequence Repeat markers (ISSRs), we studied patterns of genetic diversity and genetic differentiation among eight out of the c. 14 populations of this species to inform its conservation management. Pittosporum obcordatum has low genetic diversity at the population level (uHe = 0.169) compared to other long-lived and outcrossing species, but genetic diversity is relatively high in comparison with several other threatened species. Spearman’s Rank Correlation Coefficients suggest significant positive correlations between population size and genetic diversity as measured by the percentage of polymorphic loci and uHe. Pittosporum obcordatum also shows relatively high levels of genetic differentiation among populations (AMOVA-derived Φ’st = 0.508, P < 0.001; all pairwise Φst values P < 0.05), indicating low genetic connectivity. Populations with relatively few plants are therefore prone to further reductions in genetic diversity through inbreeding and genetic drift. Of these, especially the Kaitaia, Owen Valley and Paengaroa populations are of conservation concern, because they contain private alleles, and therefore notably contribute to the genetic diversity of P. obcordatum.en_NZ
dc.language.isoen
dc.publisherTaylor & Francisen_NZ
dc.relation.urihttp://dx.doi.org/10.1080/0028825X.2017.1363789
dc.rightsThis is an author’s accepted version of an article published in the journal: New Zealand Journal of Botany. © 2017 Royal Society of New Zealand.
dc.subjectGenetic connectivityen_NZ
dc.subjectGenetic diversity
dc.subjecthabitat fragmentation
dc.subjectISSR
dc.subjectNew Zealand
dc.subjectpopulation genetics
dc.subjectrare plant species
dc.titleA preliminary conservation genetic study of Pittosporum obcordatum (Pittosporaceae), an endemic New Zealand species with a disjunct distributionen_NZ
dc.typeJournal Article
dc.identifier.doi10.1080/0028825X.2017.1363789en_NZ
dc.relation.isPartOfNew Zealand Journal of Botanyen_NZ
pubs.elements-id200491
pubs.notesPublished online 23 Aug 2017en_NZ
pubs.organisational-group/Waikato
pubs.organisational-group/Waikato/2018 PBRF
pubs.organisational-group/Waikato/FSEN
pubs.organisational-group/Waikato/FSEN/2018 PBRF - FSEN
pubs.organisational-group/Waikato/FSEN/School of Science
pubs.organisational-group/Waikato/FSEN/School of Science/2018 PBRF - School of Science
pubs.publication-statusPublished onlineen_NZ
uow.identifier.article-noTNZB 1363789


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