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Allozyme Diversity Of Koompassia Malaccensis (Leguminosae)In Peninsular Malaysia

Lee, C.T., and Lee, S.L., and Ng, S.K.K., and Siti Salwana H, and Norwati, M, and Saw, L. G, (2007) Allozyme Diversity Of Koompassia Malaccensis (Leguminosae)In Peninsular Malaysia. Journal of Tropical Forest Science, 19 (2). pp. 73-78. ISSN 0128-1283

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Official URL: http://info.frim.gov.my/cfdocs/infocenter/jtfsonline/jtfs/v19n2/73-78.pdf

Affiliations

Forest Research Institute Malaysia
Forest Research Institute Malaysia
Forest Research Institute Malaysia
Forest Research Institute Malaysia
Forest Research Institute Malaysia
Forest Research Institute Malaysia

Abstract

Population genetic study of Koompassia malaccensis, an important tropical timber tree species, was carried out using allozyme markers. Six natural populations, namely, Bukit Bandi, Bukit Lagong, Jerangau, Pasoh, Sungai Lalang and Sungai Menyala were investigated. The results showed that K. malaccensis harboured a higher level of allozyme
diversity (mean expected heterozygosity, He = 0.253, mean number of alleles per locus, Aa = 2.8 and effective
number of alleles per locus, Ae = 1.27), compared with other regionally distributed tropical long-lived tree
species. Majority of the diversity was partitioned within-population (Fst = 0.045). No correlation was detected
between geographical distance and genetic distance (Mantel test, r = -0.0031, p = 0.5130). Only one private
allele was detected in Sungai Lalang population.


Kajian populasi genetik bagi Koompassia malaccensis yang merupakan salah satu spesies kayu balak tropika yang penting telah dijalankan menggunakan penanda alozim. Sebanyak enam populasi semula jadi (Bukit Bandi, Bukit Lagong, Jerangau, Pasoh, Sungai Lalang and Sungai Menyala) telah dikaji. Hasil kajian menunjukkan bahawa K. malaccensis
mempamerkan tahap kepelbagaian alozim yang lebih tinggi (min keheterozigotan jangkaan, He = 0.253, min bilangan alel setiap lokus, Aa = 2.8 dan bilangan efektif alel setiap lokus, Ae =1.27) berbanding dengan spesies pokok tropika berjangka hayat panjang di daerah yang sama. Majoriti daripada kepelbagaian tersebut ialah kepelbagaian dalam populasi (Fst = 0.045). Tiada korelasi didapati antara jarak geografi dengan jarak genetik (ujian Mantel, r = -0.0031, p = 0.5130). Hanya satu alel unik dikesan dalam populasi Sungai Lalang.

Item Type:Journal
Additional Information:This research was supported in part by the Export Levy Fund under the Project A179 QIZZ and IRPA Grant 01-04-01-0133.
Keywords:Kempas, tropical tree species, population genetics, isozymes
Subjects:S Agriculture, Forestry
ID Code:8857

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