Taxonomic Study of Korean Scirpus L. s.l. (Cyperaceae) II: Pattern of Phenotypic Evolution Inferred from Molecular Phylogeny

被引:5
作者
Jung, Jongduk [1 ]
Choi, Hong-Keun [1 ]
机构
[1] Ajou Univ, Dept Biol Sci, Suwon 443749, South Korea
基金
新加坡国家研究基金会;
关键词
Bolboschoenus; Schoenoplectus; Schoenoplectiella; Scirpus; Trichophorum; Cyperaceae; Molecular phylogeny; Morphology; Character change; DNA-SEQUENCE DATA; CLASSIFICATION;
D O I
10.1007/s12374-011-9181-8
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
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.
引用
收藏
页码:409 / 424
页数:16
相关论文
共 41 条
[1]  
[Anonymous], 1958, J FS U TOKYO SECTION
[2]  
[Anonymous], 2002, PAUP*. Phylogenetic Analysis Using Parsimony (*and other methods). Version 4
[3]   ANNOTATED LIST OF ORIGINAL DESCRIPTIONS IN SCIRPUS [J].
BEETLE, AA .
AMERICAN MIDLAND NATURALIST, 1949, 41 (02) :453-493
[4]   Studies in the genus Scirpus VII - Conspectus of sections represented in the Americas [J].
Beetle, AA .
AMERICAN JOURNAL OF BOTANY, 1944, 31 (05) :261-265
[5]   Achene structure and taxonomy of North American Bolboschoenus (Cyperaceae) [J].
Browning, J ;
GordonGray, KD ;
Smith, SG .
BRITTONIA, 1995, 47 (04) :433-445
[6]   SEDGE GENERA OF THE WORLD - RELATIONSHIPS AND A NEW CLASSIFICATION OF THE CYPERACEAE [J].
BRUHL, JJ .
AUSTRALIAN SYSTEMATIC BOTANY, 1995, 8 (02) :125-305
[7]   A rapid DNA minipreparation method suitable for AFLP and other PCR applications [J].
Chen, DH ;
Ronald, PC .
PLANT MOLECULAR BIOLOGY REPORTER, 1999, 17 (01) :53-57
[8]   Parsimony jackknifing outperforms neighbor-joining [J].
Farris, JS ;
Albert, VA ;
Kallersjo, M ;
Lipscomb, D ;
Kluge, AG .
CLADISTICS, 1996, 12 (02) :99-124
[9]  
GOETGHEBEUR P, 1991, Kew Bulletin, V46, P169, DOI 10.2307/4110756
[10]  
Goetghebeur P., 1986, Genera Cyperacearum. Een bijdrage tot de kennis van de morfologie