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题名: Molecular systematics and character evolution of Typha (Typhaceae) inferred from nuclear and plastid DNA sequence data
作者: Kim, C ; Choi, HK
刊名: TAXON
关键词: LEAFY ; plastid DNA ; phylogenetic relationship ; species delimitation ; BAYESIAN PHYLOGENETIC INFERENCE ; CHLOROPLAST DNA ; NORTH-AMERICA ; ANGUSTIFOLIA ; LATIFOLIA ; INCONGRUENCE ; POPULATIONS ; POACEAE ; POLLEN ; GENES
英文摘要: 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.
出版日期: 2011
卷号: 60, 期号:5, 页码:1417-1428
语种: 英语
ISSN号: 0040-0262
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/5277
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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Recommended Citation:
Kim, C; Choi, HK.Molecular systematics and character evolution of Typha (Typhaceae) inferred from nuclear and plastid DNA sequence data,TAXON,2011,60(5):1417-1428
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