An assessment of genetic variation in vulnerable Borneo Ironwood Eusideroxylon zwageri Teijsm. & Binn. in Sarawak using SSR markers

Siti Fatimah Md Isa and Christina Yong and M Nazre Saleh and Rusea Go (2021) An assessment of genetic variation in vulnerable Borneo Ironwood Eusideroxylon zwageri Teijsm. & Binn. in Sarawak using SSR markers. Journal of Threatened Taxa, 13. pp. 18588-18597. ISSN 0974-7893 (P-ISSN) , 0974-7907 (E-ISSN)

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URL: https://www.threatenedtaxa.org/JoTT/article/view/5...

Abstract

Borneo Ironwood Eusideroxylon zwageri Teijsm. & Binn. has high market value for its valuable and durable tmber, which has put it at risk due to illegal logging. This study analyzed E. zwageri genetic variation using four microsatellite markers in populations at Nirwana Rehabilitation Forest (NRF), and Tatau, Sarawak. We found that 20.1% of total genetic variation corresponded to differences between populations, while 79.9% was attributed to differences among individuals from the same population. The Tatau population had lower genetic diversity compared to NRF, and both populations showed depressed heterozygosity indicative of inbreeding. Allelic data were also used to confirm variety level differences proposed by earlier workers, and three informal varieties: zwageri, grandis, and exilis were recognized in the study area. It is expected that the results from this study could serve as baseline data for conservation of this vulnerable species.

Item Type:	Article
Keyword:	Allelic data , Belian , DARwin , GenAlex , IUCN Red List , Malaysia
Subjects:	Q Science > QH Natural history > QH1-278.5 Natural history (General) > QH1-(199.5) General Including nature conservation, geographical distribution S Agriculture > SB Plant culture > SB1-1110 Plant culture
Department:	FACULTY > Faculty of Tropical Forestry
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	03 Nov 2022 11:04
Last Modified:	08 Nov 2022 08:27
URI:	https://eprints.ums.edu.my/id/eprint/34688

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