Y-chromosomal gene flow of Macaca fascicularis (Cercopithecidae) between the insular and mainland peninsula of Penang state, Malaysia
DNA sequencing of the Y-chromosome testis-specific protein locus (TSPY) and sex-determining region (SRY) was conducted on 27 Macaca fascicularis individuals from eight insular and two peninsula localities of Penang State, Malaysia. Five haplotypes were discovered from the Penang samples, of which...
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| Format: | Article |
| Language: | English |
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Journal of Science and Technology in the Tropics
2013
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| Online Access: | http://ir.unimas.my/id/eprint/1474/ http://ir.unimas.my/id/eprint/1474/1/y-chromosomal%20gene%20flow%20of%20macaca%20fascicularis%20%28abstract%29.pdf |
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| author | Jeffrine J., Rovie-Ryan Mohd Tajuddin, Abdullah Frankie Thomas, Sitam Zaaba Zainol, Abidin Soon Guan, Tan |
| author_facet | Jeffrine J., Rovie-Ryan Mohd Tajuddin, Abdullah Frankie Thomas, Sitam Zaaba Zainol, Abidin Soon Guan, Tan |
| author_sort | Jeffrine J., Rovie-Ryan |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | DNA sequencing of the Y-chromosome testis-specific protein locus (TSPY)
and sex-determining region (SRY) was conducted on 27 Macaca fascicularis individuals
from eight insular and two peninsula localities of Penang State, Malaysia. Five
haplotypes were discovered from the Penang samples, of which four were unique for
that population. These haplotypes constituted of related individuals as observed in the
Y-chromosomal gene flow within and between the insular and mainland regions. The
occurrence of a dominant haplotype shared amongst M. fascicularis from southern
Thailand, the Malay Peninsula, and Sumatra could be the result of a recent dispersal
event from the common Pleistocene refugia, which had most likely been located in
the Malay Peninsula. A combination of nucleotides at 12 sites distinguished the M.
fascicularis from the northern region of the Isthmus of Kra from those of the southern
region including our samples. The molecular phylogenetic tree confirmed that, unlike
conspecific populations from regions north of the Isthmus of Kra, M. fascicularis from
the southern region of the isthmus were free of introgression of Y-chromosome from
M. mulatta. We dated the last common ancestors shared by the fascicularis group at
approximately 1.5 million years ago (mya). Also, we estimated the bifurcation between
the insular and the continental lineages of M. fascicularis as approximately 0.7 mya,
which had been estimated as 0.4 mya in a previous study. Finally, similarly to the
observations on various taxa by previous authors we recognise the role of the Isthmus
of Kra area as a genetic barrier to the dispersal of and to gene flow in M. fascicularis. |
| first_indexed | 2025-11-15T05:57:13Z |
| format | Article |
| id | unimas-1474 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T05:57:13Z |
| publishDate | 2013 |
| publisher | Journal of Science and Technology in the Tropics |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-14742015-09-15T03:23:08Z http://ir.unimas.my/id/eprint/1474/ Y-chromosomal gene flow of Macaca fascicularis (Cercopithecidae) between the insular and mainland peninsula of Penang state, Malaysia Jeffrine J., Rovie-Ryan Mohd Tajuddin, Abdullah Frankie Thomas, Sitam Zaaba Zainol, Abidin Soon Guan, Tan GE Environmental Sciences DNA sequencing of the Y-chromosome testis-specific protein locus (TSPY) and sex-determining region (SRY) was conducted on 27 Macaca fascicularis individuals from eight insular and two peninsula localities of Penang State, Malaysia. Five haplotypes were discovered from the Penang samples, of which four were unique for that population. These haplotypes constituted of related individuals as observed in the Y-chromosomal gene flow within and between the insular and mainland regions. The occurrence of a dominant haplotype shared amongst M. fascicularis from southern Thailand, the Malay Peninsula, and Sumatra could be the result of a recent dispersal event from the common Pleistocene refugia, which had most likely been located in the Malay Peninsula. A combination of nucleotides at 12 sites distinguished the M. fascicularis from the northern region of the Isthmus of Kra from those of the southern region including our samples. The molecular phylogenetic tree confirmed that, unlike conspecific populations from regions north of the Isthmus of Kra, M. fascicularis from the southern region of the isthmus were free of introgression of Y-chromosome from M. mulatta. We dated the last common ancestors shared by the fascicularis group at approximately 1.5 million years ago (mya). Also, we estimated the bifurcation between the insular and the continental lineages of M. fascicularis as approximately 0.7 mya, which had been estimated as 0.4 mya in a previous study. Finally, similarly to the observations on various taxa by previous authors we recognise the role of the Isthmus of Kra area as a genetic barrier to the dispersal of and to gene flow in M. fascicularis. Journal of Science and Technology in the Tropics 2013 Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/1474/1/y-chromosomal%20gene%20flow%20of%20macaca%20fascicularis%20%28abstract%29.pdf Jeffrine J., Rovie-Ryan and Mohd Tajuddin, Abdullah and Frankie Thomas, Sitam and Zaaba Zainol, Abidin and Soon Guan, Tan (2013) Y-chromosomal gene flow of Macaca fascicularis (Cercopithecidae) between the insular and mainland peninsula of Penang state, Malaysia. Journal of Science and Technology in the Tropics. (9). pp. 113-126. http://www.academia.edu/5541076/Y-chromosomal_gene_flow_of_Macaca_fascicularis_ |
| spellingShingle | GE Environmental Sciences Jeffrine J., Rovie-Ryan Mohd Tajuddin, Abdullah Frankie Thomas, Sitam Zaaba Zainol, Abidin Soon Guan, Tan Y-chromosomal gene flow of Macaca fascicularis (Cercopithecidae) between the insular and mainland peninsula of Penang state, Malaysia |
| title | Y-chromosomal gene flow of Macaca fascicularis (Cercopithecidae) between the insular and mainland peninsula of Penang state, Malaysia |
| title_full | Y-chromosomal gene flow of Macaca fascicularis (Cercopithecidae) between the insular and mainland peninsula of Penang state, Malaysia |
| title_fullStr | Y-chromosomal gene flow of Macaca fascicularis (Cercopithecidae) between the insular and mainland peninsula of Penang state, Malaysia |
| title_full_unstemmed | Y-chromosomal gene flow of Macaca fascicularis (Cercopithecidae) between the insular and mainland peninsula of Penang state, Malaysia |
| title_short | Y-chromosomal gene flow of Macaca fascicularis (Cercopithecidae) between the insular and mainland peninsula of Penang state, Malaysia |
| title_sort | y-chromosomal gene flow of macaca fascicularis (cercopithecidae) between the insular and mainland peninsula of penang state, malaysia |
| topic | GE Environmental Sciences |
| url | http://ir.unimas.my/id/eprint/1474/ http://ir.unimas.my/id/eprint/1474/ http://ir.unimas.my/id/eprint/1474/1/y-chromosomal%20gene%20flow%20of%20macaca%20fascicularis%20%28abstract%29.pdf |