Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13458
Title: The systematics of sematophyllaceae (MUSCI) of Peninsula Malaysia, Philippines and Singapore based on RBCL gene sequences and morphological study
Authors: CHANG YING
Keywords: Sematophyllaceae, rbcL gene, molecular phylogeny, cladistic analysis
Issue Date: 8-Jan-2004
Source: CHANG YING (2004-01-08). The systematics of sematophyllaceae (MUSCI) of Peninsula Malaysia, Philippines and Singapore based on RBCL gene sequences and morphological study. ScholarBank@NUS Repository.
Abstract: This thesis aimed to redefine the family concept and subfamilial division and to test the monophyly of the genera in the family Sematophyllaceae (Hypnales, Musci). Both molecular and morphological characters were used. In the molecular study, 41 rbcL gene sequences were obtained from experiments and/or from GenBank. Phylogenetic trees were reconstructed using Maxinum Likelihood, Bayesian Inference and Maximum Parsimony methods. In the morphological study, cladistic analyses were applied to 69 characters using Maximum Parsimony methods. Finally, phylogenetic trees were reconstructed based on the combined data set using Maximum Parsimony methods. The results showed that the molecular trees based on rbcL gene sequences are better resolved and more stable than those based on morphological data and combined data. The family definition of Sematophyllaceae is proposed to include only those taxa with all the three critical familial characters. Trichosteleum, Mastopoma, Trismegistia and Heterophyllium are shown to be paraphyletic genera.
URI: http://scholarbank.nus.edu.sg/handle/10635/13458
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