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Phylogeography of herbarium specimens of asexually propagated paper mulberry [Broussonetia papyrifera (L.) L’Hér. ex Vent. (Moraceae)] reveals genetic diversity across the Pacific

Annals of botany, 2017-09, Vol.120 (3), p.387-404 [Peer Reviewed Journal]

The Author 2017 ;The Author 2017. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com ;The Author 2017. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com 2017 ;ISSN: 0305-7364 ;EISSN: 1095-8290 ;DOI: 10.1093/aob/mcx062 ;PMID: 28633358

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  • Title:
    Phylogeography of herbarium specimens of asexually propagated paper mulberry [Broussonetia papyrifera (L.) L’Hér. ex Vent. (Moraceae)] reveals genetic diversity across the Pacific
  • Author: Payacan, Claudia ; Moncada, Ximena ; Rojas, Gloria ; Clarke, Andrew ; Chung, Kuo-Fang ; Allaby, Robin ; Seelenfreund, Daniela ; Seelenfreund, Andrea
  • Subjects: Broussonetia - genetics ; DNA, Chloroplast - genetics ; DNA, Ribosomal Spacer - genetics ; Genetic Variation ; Genetics, Population ; Genotype ; Haplotypes ; Islands ; Microsatellite Repeats ; Oceania ; Original ; ORIGINAL ARTICLES ; Phylogeography ; Polynesia ; Reproduction, Asexual
  • Is Part Of: Annals of botany, 2017-09, Vol.120 (3), p.387-404
  • Description: Paper mulberry or Broussonetia papyrifera (L.) L'Hér. ex Vent. (Moraceae) is a dioecious species native to continental South-east Asia and East Asia, including Taiwan, that was introduced to the Pacific by pre-historic voyagers and transported intentionally and propagated asexually across the full range of Austronesian expansion from Taiwan to East Polynesia. The aim of this study was to gain insight into the dispersal of paper mulberry into Oceania through the genetic analysis of herbaria samples which represent a more complete coverage of the historical geographical range of the species in the Pacific before later introductions and local extinctions occurred. DNA from 47 herbarium specimens of B. papyrifera collected from 1882 to 2006 from different islands of the Pacific was obtained under ancient DNA protocols. Genetic characterization was based on the ribosomal internal transcribed spacer ITS-1 sequence, a sex marker, the chloroplast ndhF-rpl32 intergenic spacer and a set of ten microsatellites developed for B. papyrifera. Microsatellites allowed detection of 15 genotypes in Near and Remote Oceanian samples, in spite of the vegetative propagation of B. papyrifera in the Pacific. These genotypes are structured in two groups separating West and East Polynesia, and place Pitcairn in a pivotal position. We also detected the presence of male plants that carry the Polynesian chloroplast DNA (cpDNA) haplotype, in contrast to findings in contemporary B. papyrifera populations where only female plants bear the Polynesian cpDNA haplotype. For the first time, genetic diversity was detected among paper mulberry accessions from Remote Oceania. A clear separation between West and East Polynesia was found that may be indicative of pulses during its dispersal history. The pattern linking the genotypes within Remote Oceania reflects the importance of central Polynesia as a dispersal hub, in agreement with archaeological evidence.
  • Publisher: England: Oxford University Press
  • Language: English
  • Identifier: ISSN: 0305-7364
    EISSN: 1095-8290
    DOI: 10.1093/aob/mcx062
    PMID: 28633358
  • Source: MEDLINE
    PubMed Central
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