Genetic Diversity of Tomistoma schlegelii Inferred from mtDNA Markers
| Autor: | Jeffrine Rovie Ryan Japning, Alan H. K. Ong, L. K. Chong, Taranjeet Kaur, Mohamad Shahbudin Sabki, Irvan Sidik |
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| Rok vydání: | 2013 |
| Předmět: |
Genetic Markers
Species complex Lineage (evolution) Biology DNA Mitochondrial Biochemistry Nucleotide diversity Genetic variation Genetics Animals Clade Molecular Biology Ecology Evolution Behavior and Systematics Alligators and Crocodiles Singapore Genetic diversity Phylogenetic tree Endangered Species Haplotype Malaysia Genetic Variation General Medicine Cytochromes b Locus Control Region Indonesia Evolutionary biology Hong Kong human activities |
| Zdroj: | Biochemical Genetics. 51:275-295 |
| ISSN: | 1573-4927 0006-2928 |
| Popis: | The genetic diversity of the endangered crocodile Tomistoma schlegelii was characterized using the protein coding ND 6-tRNA(glu)-cyt b and the cytochrome b-control region (cyt b-CR) markers. Concatenate data revealed six haplotypes with an overall haplotype diversity of 0.769 ± 0.039; nucleotide diversity was 0.00535 ± 0.00172. A nearest-neighbor analysis showed that all individuals clustered with four geographic regions (Sumatra, Peninsular Malaysia, Sarawak, and East Kalimantan) and were genetically differentiated. With the exception of the individuals from haplotype H2, which occurred in both Peninsular Malaysia and Sarawak, all other haplotypes were geographically distinct. The H4 lineage, which was found to be the most divergent, clustered exclusively in the basal clade in all phylogenetic trees, and the haplotype network was unconnected at the 95% reconnection limit, suggesting further investigation to establish its possible status as a distinct evolutionary significant unit or a cryptic species. |
| Databáze: | OpenAIRE |
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