Connecting the dots: a population genetic study of the disjunctly distributed species Pittosporum obcordatum

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Conference Contributions - Other
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Publisher
University of Canterbury. Biological Sciences
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Date
2014
Authors
Wright, S.
Gemmill, C.
Kelly, D.
de Lange, P.J.
Hutchison, M.
Pelser, P.B.
Abstract

Pittosporum obcordatum Raoul (Pittosporaceae) is a rare New Zealand plant with a widespread, disjunct distribution. Isolated populations of P. obcordatum have been found from Kaitaia in the North Island to Fiordland in the South Island and this species is classified as “nationally vulnerable”. This research project aims to inform assessments of its conservation status by determining if the current disjunct distribution of P. obcordatum is natural or if it is a consequence of habitat loss. In order to achieve this goal, tissue samples have been collected from eight populations throughout the North and South Islands of New Zealand. Genetic analyses of these samples using Inter-simple sequence repeat (ISSR) markers are employed to study patterns of genetic variation in P. obcordatum. In this poster, I will present our preliminary results. In the near future, we will also use ISSR data to reassess the taxonomic status of var. kaitaianensis.

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Citation
Wright, S., Gemmill, C., Kelly, D., de Lange, P.J., Hutchison, M., Pelser, P.B. (2014) Connecting the dots: a population genetic study of the disjunctly distributed species Pittosporum obcordatum. Palmerston North, New Zealand: Australasian Systematic Botany Society Conference, 24-28 Nov 2014.
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Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Field of Research::06 - Biological Sciences::0607 - Plant Biology::060799 - Plant Biology not elsewhere classified
Field of Research::06 - Biological Sciences::0604 - Genetics::060411 - Population, Ecological and Evolutionary Genetics
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