Biosystematic studies on the genus <i>Polygonatum</i> (Convallariaceae) IV. Molecular phylogenetic analysis based on restriction site mapping of the chloroplast gene <i>trn</i>K

1997/01/01 by M. N. Tamura, Minoru Tamura, Andrea E. Schwarzbach +5 · 10 citations
Biochemistry, Genetics and Molecular Biology · Agricultural and Biological Sciences · #Plant and Fungal Species Descriptions #Botany, Ecology, and Taxonomy Studies #Plant Diversity and Evolution

paper · doi:10.1002/fedr.19971080306

Abstract

Abstract Phylogenetic relationships of 14 species and one variety of the genus Polygonatum as well as three species of the genus Disporopsis and Heteropolygonatum roseolum were analyzed based on mapped restriction site variation in a PCR‐amplified chloroplast genome region, trn K. In agreement with earlier taxonomic treatments it was found that Disporopsis and Heteropolygonatum should be distinguished from Polygonatum at generic level, and that P. sect. Polygonatum can be recognized as a monophyletic group. Earlier series concepts in P. sect. Polygonatum based on chromosome number and characteristics of staminal filaments are not supported by the molecular data. The molecular data suggest that satellite chromosome morphology might prove valuable as a diagnostic character in Polygonatum sect. Polygonatum .

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