Taxonomic Study of Korean Scirpus L. s.l. (Cyperaceae) II: Pattern of Phenotypic Evolution Inferred from Molecular Phylogeny
Scirpus L. s.l. is well known as one of the polyphyletic groups in Cyperaceae. Recent molecular phylogenetic studies clearly suggested that Scirpus s.l. should be separated into several independent genera. In this study, we intend to present the morphological variations and patterns of phenotypic ev...
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Published in | Journal of plant biology = Singmul Hakhoe chi Vol. 54; no. 6; pp. 409 - 424 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
New York
Springer-Verlag
01.12.2011
Springer Nature B.V 한국식물학회 |
Subjects | |
Online Access | Get full text |
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Summary: | Scirpus
L. s.l. is well known as one of the polyphyletic groups in Cyperaceae. Recent molecular phylogenetic studies clearly suggested that
Scirpus
s.l. should be separated into several independent genera. In this study, we intend to present the morphological variations and patterns of phenotypic evolution based on molecular phylogeny of Korean
Scirpus
s.l. Five genera, including 21 taxa from Korean
Scirpus
s.l., were examined: three species of
Bolboschoenus
, three species of
Schoenoplectus
, eight species of
Schoenoplectiella
including one hybrid, five species of
Scirpus
, and two species of
Trichophorum.
For morphological analyses, 23 and 48 characters were selected from vegetative and reproductive organs, respectively. Molecular phylogeny was inferred from a nuclear ribosomal internal transcribed spacer, the chloroplast
rbcL
gene, and the chloroplast
trnL-F
region. Distinct characteristics and quantitative variation was presented for identification of the five genera and their species. A pronounced pattern of morphological character change was reduction, although many other character states seem to be homoplastic. We suggest that the reduction of phenotypic characteristics has been expressed in terms of condensation of internodes, reduction of leaf blade, and simplification of inflorescence among five genera of Korean
Scirpus
s.l. |
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Bibliography: | G704-000309.2011.54.6.007 http://www.springerlink.com/content/1226-9239/54/6/ |
ISSN: | 1226-9239 1867-0725 |
DOI: | 10.1007/s12374-011-9181-8 |