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Genetic Variation and Hybridisation among Eight Species of kowhai (Sophora: Fabaceae) from New Zealand Revealed by Microsatellite Markers.

ABSTRACT: We analysed nine microsatellite markers for 626 individuals representing the geographic range of eight closely related endemic New Zealand species of Sophora. Structure analysis identified the optimal K value as seven, with samples identified as Sophorachathamica, Sophorafulvida, Sophoralongicarinata, and Sophoraprostrata retrieved as well-defined groups. The remaining samples formed less resolved groups referable to Sophoratetraptera and Sophoragodleyi, with Sophoramicrophylla and Sophoramolloyi forming the seventh group. Our data suggest that considerable admixture occurs and this is most likely the result of hybridisation or introgression. S.fulvida shows admixture with the sympatric S.chathamica, and the widespread S.microphylla exhibits admixture with the sympatric S.godleyi, S.molloyi, and S.tetraptera.

SUBMITTER: Heenan P

PROVIDER: S-EPMC5852607 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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Genetic Variation and Hybridisation among Eight Species of kōwhai (Sophora: Fabaceae) from New Zealand Revealed by Microsatellite Markers.

Heenan Peter P Mitchell Caroline C Houliston Gary G

Genes 20180220 2

We analysed nine microsatellite markers for 626 individuals representing the geographic range of eight closely related endemic New Zealand species of Sophora. Structure analysis identified the optimal K value as seven, with samples identified as Sophorachathamica, Sophorafulvida, Sophoralongicarinata, and Sophoraprostrata retrieved as well-defined groups. The remaining samples formed less res ...[more]

PMID: 29461510

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