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Research Interest

My research interests are in the areas of conservation genetics, translational genomics, functional genomics and molecular breeding of commercially important forest tree species, such as Borneo Ironwood, Shorea species, Kelampayan, Sawih, Dabai and Acacia species. Currently, our research group at the Forest Genomics & Informatics Laboratory (fGiL) http://fgilab.weebly.com/ is actively involved in developing the highly informative and polymorphic genetic markers specific for genotyping two fast growing indigenous tree species, Kelampayan and Sawih. These markers could be then used for more accurate means of tree selection for plantation and improvement activities of the species. Apart from that, we are also studying the transcriptome to better understand important cellular processes such as genetic control of wood formation in the selected tree species. For example, we would like to know which genes affect a desirable trait and how variations (mutations) in those genes influence phenotype. By associating genotypes with phenotypes, early selection of improved planting materials for plantation establishment through biotechnological interventions can be achieved at the seedling stage, thus resulting in a better economic return due to the reduction of cost and time in the production of high quality planting materials for commercial plantation forests.

Publication

Tchin, B.L., Ho, W.S., Pang, S.L. & Ismail, J. (2011). Gene-associated single nucleotide polymorphism (SNP) in cinnamate 4-hydroxylase (C4H) and cinnamy alcohol dehydrogenase (CAD) genes from Acacia mangium superbulk trees. Biotechnology Journal (Pending)

Ho, W.S., Pang, S.L. Lau, P. & Ismail, J. (2011). Sequence variation in the cellulose synthase (SpCesA1) gene from Shorea parvifolia ssp. parvifolia mother trees. Journal of Tropical Agricultural Science 34(2): 323-329

Ho, W.S., Pang, S.L. & Julaihi, A. (2010). Generation and analysis of expressed sequence tags from genes involved in wood formation in kelampayan (Neolamarkia cadamba (Roxb.) Bosser). Genet. Molec. Biol. (accepted – waiting for NCBI accession numbers)

Lau, E.T., Ho, W.S. & Julaihi, A. (2009). Molecular Cloning of cellulose synthase gene, SpCesA1 from developing xylem of Shorea parvifolia ssp. parvifolia. Biotechnology 8(4): 416-424.

Ipor, I.B., Ho, W.S., Tawan, C.S., Salmizana, M.S. & Noryatimah, M. (2007). Ecology and DNA fingerprinting of Cryptocoryne pallidinervia Engler (Araceae) accessions using Polymerase Chain Reaction M13 universal primer. Malaysian Applied Biology Journal 36(2): 21-31.

Ho, W.S., Wickneswari, R., Mahani, M.C. & Shukor, M.N. (2006). Comparative genetic diversity (polymorphisms) studies of Shorea curtisii Dyer ex King (Dipterocarpaceae) using SSR and DAMD markers. Journal of Tropical Forest Science 18(1): 557-565.

Ho, W.S., Wickneswari, R., Mahani, M.C. & Shukor, M.N. (2004). Effects of logging on forest structure after different time periods of logging in Peninsular Malaysia. Forest Ecology and Management 203: 209-228.

Wickneswari, R. & Ho, W.S. (2003). Determination of genetic relatedness of selected individual trees of Shorea leprosula Miq. and Dipterocarpus cornutus Dyer in forest seed production areas. TROPICS 13(2): 139-149.

Wickneswari, R., Ho, W.S., Lee, K.S. & Lee, C.T. (2003). Impact of disturbance on population and genetic structure of tropical forest trees. Forest Genetics 11(3-4): 193-201.

 

Ho, W.S., Pang, S.L., Pauline, L. & Ismail, J. (2009). Sequence variation in cellulose synthase (CesA) gene from Shorea parvifolia ssp. parvifolia mother trees. Proceedings of the Simposium Biologi Malaysia 2009: Harnessing the Potential of Biodiversity. Hotel Equatorial, Bangi, Selangor, 17-18 November 2009. pp. 195-199.

Tan, S.L., Julaihi, A. & Ho, W.S. (2009). Genetic variation of kelampayan (Neolamarckia cadamba) trees in Niah, Sarawak as revealed by RAPD marker assays. Proceedings of the Seminar on Viability Assessment of Indigenous Tree Species and Propagation Techniques for Planted Forest Development in Sarawak. Wisma STA, Kuching, Sarawak, 21 May 2009. pp. 89-93.

Phui, S.L., Ho, W.S. & Julaihi, A. (2009). Development of microsatellite markers for kelampayan (Neolamarckia cadamba (Roxb.) Bosser) by ISSR-suppression-PCR method. Proceedings of the 3rd Regional Conference on Natural Resources in the Tropics (NRTrop3): Harnessing tropical natural resources through innovations and technologies. Hilton Kuching, Sarawak, 3-5 August 2009. pp. 340-346. (ISBN 978-967-5418-11-2)

Liew. K.S., Ho, W.S. & Julaihi, A. (2009). Development of microsatellite markers for sawih. Proceedings of the 3rd Regional Conference on Natural Resources in the Tropics (NRTrop3): Harnessing tropical natural resources through innovations and technologies. Hilton Kuching, Sarawak, 3-5 August 2009. pp. 323-328. (ISBN 978-967-5418-11-2)

Pang, S.L., Rohanie, B., Phui, S.L., Ho, W.S. & Julaihi, A. (2010). Kelampayan Tree Improvement Programme. Proceedings of the Planted Forest Seminar 2010. Wisma STA, Kuching, Sarawak, 25 May 2010. 7p.

Ho, W.S., Pang, S.L., Lai, P.S., Tiong, S.Y., Phui, S.L., Liew, K.S., Nurfaizah, M., Tchin, B.L., Ismail, J., Cheksum, T., Petrus, B. & Julaihi, A. (2010). From conservation to innovation: Building research capacity for planted forest development in Sarawak. Proceedings of the 3rd Biotechnology Colloquium 2010: How Far Have We Gone? Department of Molecular Biology, Faculty of Resource Science and Technology, UNIMAS. 24-25 May 2010. 

Lai, P.S., Ho, W.S. & Pang, S.L. (2010). Development and characterization of expressed sequence tag-simple sequence repeat markers from Neolamarckia cadamba (Kelampayan) tree transcriptome (NcdbEST). Proceedings of the 3rd Biotechnology Colloquium 2010: How Far Have We Gone? Department of Molecular Biology, Faculty of Resource Science and Technology, UNIMAS. 24-25 May 2010. 

Ting, J.C., Ho, W.S., Tawan, C.S. & Shamsudin, N. (2010). Development of SCAR markers for sex determination in Canarium odontophyllum Miq. (Dabai). Proceedings of the 3rd Biotechnology Colloquium 2010: How Far Have We Gone? Department of Molecular Biology, Faculty of Resource Science and Technology, UNIMAS. 24-25 May 2010. 

Tiong, S.Y., Chiew, S.F., Ho, W.S. & Julaihi, A. (2010). Genetic diversity of Neolamarckia cadamba (Kelampayan) in Sarawak using ISSR markers. Proceedings of the 3rd Biotechnology Colloquium 2010: How Far Have We Gone? Department of Molecular Biology, Faculty of Resource Science and Technology, UNIMAS. 24-25 May 2010. 

Tchin, B.L., Ho, W.S., Pang, S.L. & Ismail, J. (2010). Single nucleotide polymorphism (SNP) in cinnamate 4-hydroxylase (C4H) and cinnamy alcohol dehydrogenase (CAD) genes from Acacia mangium superbulk. Proceedings of the 3rd Biotechnology Colloquium 2010: How Far Have We Gone? Department of Molecular Biology, Faculty of Resource Science and Technology, UNIMAS. 24-25 May 2010. 

Liew, K.S., Ho, W.S. & Julaihi, A. (2010). Development and polymorphism of SSR markers for Duabanga moluccana Blume (Sawih). Proceedings of the 3rd Biotechnology Colloquium 2010: How Far Have We Gone? Department of Molecular Biology, Faculty of Resource Science and Technology, UNIMAS. 24-25 May 2010. 

Phui, S.L., Ho, W.S. & Julaihi, A. (2010). Development of SSR markers for Neolamarckia cadamba (Kelampayan). Proceedings of the 3rd Biotechnology Colloquium 2010: How Far Have We Gone? Department of Molecular Biology, Faculty of Resource Science and Technology, UNIMAS. 24-25 May 2010. 

Ismail, J., Ho, W.S., Hafizah, A.R., Angela, T.H. & Wickneswari, R. (2010). Applications of genomcis to Acacia mangium plus tree improvement for wood quality. Proceedings of the National Biotechnology Seminar 2010. PWTC, Kuala Lumpur, 24-26 May 2010. 3p.

Ho, W.S., Pang, S.L., Lai, P.S., Tiong, S.Y., Phui, S.L., Liew, K.S., Nurfaizah, M., Tchin, B.L., Ismail, J., Cheksum, T., Petrus, B. & Julaihi, A. (2010). Genomics studies on plantation tree species in Sarawak. Proceedings of the International Symposium on Forestry and Forest Products 2010: Addressing the global concerns and changing societal needs. The Legend Hotel, Kuala Lumpur, 5-7 October 2010. 

Ho, W.S., Liew, K.S., Elias, A.B., Fedrick, B.J., Mohamad, K.M.A. & Phui, S.L. (2010). Genetic diversity of kelampayan using dominant DNA markers based on inter-simple sequence repeats in Sarawak. Proceedings of the International Symposium on Forestry and Forest Products 2010: Addressing the global concerns and changing societal needs. The Legend Hotel, Kuala Lumpur, 5-7 October 2010.

Module SBBI4303 Environmental Biology. Open University Malaysia (OUM), Kuala Lumpur. (2004) – Chief Module Writer

CAI Multimedia

Tree Genomic Resource CD-ROM: CADAMOMICS (aka the Neolamarkia cadamba EST Database, NCdbEST) - contained 10,368 ESTs, of which 6,622 high quality ESTs (3.2 MB)

Awards

 

  • Gold Medal - UNIMAS R&D Expo, CAIS-UNIMAS, 28-29 March 2011.
  • Best Poster Award (First Prize) - The International Symposium on Forestry and Forest Products 2010: Addressing the global concerns and changing societal needs. The Legend Hotel, Kuala Lumpur, 5-7 October 2010.
  • Silver Medal - The 21st International Invention Innovation & Technology Exhibition (ITEX’10) Creativity: Pathway to innovative economy, Kuala Lumpur Convention Centre (KLCC), Malaysia, 14-16 May 2010.
  • Bronze Medal - UNIMAS R&D Expo, CAIS-UNIMAS, 25-26 March 2010.
  • Best Poster Award - Simposium Biologi Malaysia 2009. Hotel Equatorial, Bangi, Selangor, 17-18 November 2009.
  • Merit Award - UNIMAS Outstanding Online Course Award 2009.
  • Memorandum of Understanding (MoU) between Sarawak Forestry Corporation & UNIMAS (sealed on 15 November 2006) for the purpose of providing requisite applied research and development (R&D) and technical support, as well as human capital development in various aspects of forest genomics, biotechnology and tree improvement research for the development of planted forest and sustainable management of forest resources in Sarawak. (2006-2011)
  • Chief Module Writer - Module SBBI 4330 Environmental Biology, Open University of Malaysia (OUM), Kuala Lumpur. (2004)
  • Merit Award - On-line elearning efforts on Teaching & Learning at UNIMAS. (2003)
  • Research Grant Award - The Malaysia Toray Science Foundation (MTSF). (2000)
  • Nominee for the Best Poster Award - The XXI International Union of Forest Research Organizations (IUFRO) World Congress 2000: Forests and society - The role of research. PWTC, Kuala Lumpur, 7-12 August 2000.
  • Invited Scientist - The Field Test of Ecological Criteria and Indicators for Sustainable Forest Management organized by Centre of International Forestry Research (CIFOR), Bogor, Indonesia. (1999) 

 

 

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