Plant Diversity ›› 2009, Vol. 31 ›› Issue (04): 289-295.DOI: 10.3724 SP.J.1143.2009.09075

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AFLP Analysis of Phryma (Phrymaceae) Disjunct between Eastern Asia and Eastern North America

NIE Ze-Long1 , 2 , WEN Jun1 , 3 , 4 , SUN Hang1   

  1. 1 Key Laboratory of Biodiversity and Biogeography , Kunming Institute of Botany , Chinese Academy of Sciences , Kunming 650204 , China ;
    2 Graduate University of Chinese Academy of Sciences, Beijing 100049 , China ; 3 Department of Botany, National Museum of Natural History , MRC 166 , Smithsonian Institution , Washington , DC 20013-7012 , USA; 4 Key Laboratory of Systematic and Evolutionary Botany , Institute of Botany, Chinese Academy of Sciences, Beijing 100093 , China

  • Received:2009-04-16 Online:2009-08-25 Published:2009-08-25
  • Contact: SUN Hang

Abstract: Although little morphological differentiation is detected between intercontinental disjunct populations of Phryma, this monotypic genus shows distinct molecular divergence corresponding to its distribution in eastern Asia and eastern North America. This study further employs amplified fragment length polymorphism (AFLP) analyses using two selective primer pairs to quantify genetic diversity and evaluate the morphological stasis . Most of the molecular variance is accounted for by variance among populations between regions .Cluster and PCA analyses revealed that Phryma constitutes twomajor groups in line with their geographic distribution, with one genetically distinct group from the eastern Asia and the other with accessions from eastern North America. The results robustly supported the distinct genetic divergence and morphological stasis in Phryma.

Key words: AFLP

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