Publication:
Phylogenetic Relationships within the Genus Holothuria Inferred from 16S Mitochondiral rRNA Gene Sequences

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dc.contributor.authorKamarudin, KRen_US
dc.contributor.authorRehan, AMen_US
dc.contributor.authorHashim, Ren_US
dc.contributor.authorUsup, Gen_US
dc.contributor.authorRehan, MMen_US
dc.date.accessioned2024-05-29T02:50:58Z
dc.date.available2024-05-29T02:50:58Z
dc.date.issued2016
dc.description.abstractThis study aimed to resolve the taxonomic status of a morphologically undetermined sea cucumber species of order Apodida from Malaysia (GenBank accession no.: FJ223867) using partial 16S mitochondrial rRNA gene sequences and subsequently to determine the validity of morphological taxonomy of Holothuria species into its current subgenera. The undetermined species clustered with all taxa of Holothuria in previous study. Phylogenetic analyses using maximum parsimony and Bayesian methods suggest that the undetermined species was genetically closer to Holothuria (Lessonothuria) pardalis and Holothuria (Acanthotrapeza) coluber; and its position in both phylogenetic trees further suggests its status as a Holothuria taxon. Subgenera of Holothuria, Merthensiothuria and Metriatyla are monophyletic with strong bootstrap supports and posterior probabilities of clades, thus strengthening their morphological taxonomies. Nonetheless, the non-monophyly of subgenera of Halodeima, Microthele and Platyperona suggests a requirement for their taxonomic revisions using integrative taxonomy. The status of Holothuria (Halodeima) edulis subgroups in the maximum parsimony and Bayesian trees is indistinct and further taxonomic revisions are necessary. In terms of sister relationship, both phylogenetic trees suggest that subgenus Holothuria is a sister taxon of subgenus Roweothuria while the other sister relationships were unclear due to the undetermined species, paraphyly and polyphyly of a number of subgenera. Further studies with more specimens of genus Holothuria from broader geographical locations and various mtDNA genes along with morphological approaches may facilitate to provide better insights into the molecular phylogeny of subgenera of Holothuria.
dc.identifier.epage1087
dc.identifier.issn0126-6039
dc.identifier.issue7
dc.identifier.scopusWOS:000382644300010
dc.identifier.spage1079
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/11135
dc.identifier.volume45
dc.languageEnglish
dc.language.isoen_US
dc.publisherUniv Kebangsaan Malaysiaen_US
dc.relation.ispartofSains Malaysiana
dc.sourceWeb Of Science (ISI)
dc.subjectBayesian inference; Holothuria; partial sequences of 16S mitochondrial ribosomal RNA gene; phylogenetic relationshipen_US
dc.titlePhylogenetic Relationships within the Genus Holothuria Inferred from 16S Mitochondiral rRNA Gene Sequences
dc.typeArticleen_US
dspace.entity.typePublication

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