Molecular systematics and character evolution of Typha (Typhaceae) inferred from nuclear and plastid DNA sequence data
Kim, C ; Choi, HK
2011
发表期刊TAXON
ISSN0040-0262
卷号60期号:5页码:1417-1428
摘要Species identification and analysis of phylogenetic relationships within the genus Typha are difficult because of the high degree of variability among morphological characters and frequent interspecific hybridization. Traditionally, two sections (T. sect. Ebracteolatae and sect. Bracteolatae) have been recognized within the genus based on the presence or absence of bracteoles in the female flowers. The aims of this study were to reconstruct the phylogeny of Typha using DNA sequence data from nuclear LEAFY and three plastid regions, and to evaluate previous classifications. We sampled nine species from various regions that were each invariant at the molecular level. A parsimony consensus tree recovered three clades in the genus: clade I including T. angustifolia, T. elephantina, T. domingensis, and T. capensis; clade II including T. orientalis and T. laxmunni; and clade III comprising T. latifolia and T. shuttleworthii. Typha minima was found sister to the rest of the Typha species with maximal bootstrap support. The results do not support previous classifications of Typha. Character analysis showed that bracteole loss, spatulate stigma, lack of a gap between staminate and pistillate inflorescences, and monad pollen are derived characteristics in Typha.
关键词Leafy Plastid Dna Phylogenetic Relationship Species Delimitation Bayesian Phylogenetic Inference Chloroplast Dna North-america Angustifolia Latifolia Incongruence Populations Poaceae Pollen Genes
资助信息National Research Foundation of Korea (NRF)[NRF-2009-0088457]; Korean Government (MEST); Ministry of Education, Science and Technology of the Republic of Korea[M1086701003]
学科领域Plant Sciences ; Evolutionary Biology
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/5277
专题资源植物与生物技术所级重点实验室
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Kim, C,Choi, HK. Molecular systematics and character evolution of Typha (Typhaceae) inferred from nuclear and plastid DNA sequence data[J]. TAXON,2011,60(5):1417-1428.
APA Kim, C,&Choi, HK.(2011).Molecular systematics and character evolution of Typha (Typhaceae) inferred from nuclear and plastid DNA sequence data.TAXON,60(5),1417-1428.
MLA Kim, C,et al."Molecular systematics and character evolution of Typha (Typhaceae) inferred from nuclear and plastid DNA sequence data".TAXON 60.5(2011):1417-1428.
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