Phylogenetic Study Of Genus Spathoglottis Blume (Orchidaceae) In Malesia
| dc.contributor.author | Nordin, Farah Alia | |
| dc.date.accessioned | 2019-01-25T01:49:42Z | |
| dc.date.available | 2019-01-25T01:49:42Z | |
| dc.date.issued | 2018-02 | |
| dc.description.abstract | The genus Spathoglottis Blume (tribe Collabieae, subfamily Epidendroideae) is a genus with a total of 49 terrestrial geophyte species and is widely distributed in tropical and subtropical Asia and the Pacific Islands. A total of 44 species were recorded in the Malesian region and are concentrated particularly in New Guinea. Despite of being popular in horticulture, Spathoglottis is a taxonomically confused genus in Orchidaceae. For example, confusion is detected between a pair of species within the yellow-flowered Spathoglottis; the S. aurea and S. microchilina with both species show a complex morphological plasticity. This study was initiated to examine the morphological attributes among species of Spathoglottis; and establishing a molecular phylogenetic study in elucidating the relationships among members of the genus. A total of 16 taxa (13 species and three varieties) of Spathoglottis from IndoChina and throughout Malesia were examined. Seventytwo morphological and three ecological characters were selected from all taxa under investigation. Based on the morphological analysis, genus Spathoglottis in Malesia can be divided into two major sections based on the colour of the flower: (1) the Purple Spathoglottis Complex and (2) the Yellow Spathoglottis Complex. Molecular studies for the species of Spathoglottis were carried out using two plastid DNA genes (matK and trnLF) and the internal transcribed spacer of a nuclear ribosomal DNA (ITS). Three phylogenetic analyses were conducted to study the evolutionary relationships among species of Spathoglottis in Malesia: Maximum Parsimony (MP), Maximum Likelihood (ML) and Bayesian Inference analyses (BI). | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/7663 | |
| dc.language.iso | en | en_US |
| dc.publisher | Universiti Sains Malaysia | en_US |
| dc.subject | The genus Spathoglottis Blume | en_US |
| dc.subject | total of 49 terrestrial geophyte species | en_US |
| dc.title | Phylogenetic Study Of Genus Spathoglottis Blume (Orchidaceae) In Malesia | en_US |
| dc.type | Thesis | en_US |
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