Research, Development and Innovation Agency Conference Portal, International Conference on Managing Forest Genetic Resources in Changing Environment and Landscapes

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GENETIC STRUCTURE OF Calophyllum inophyllum IN DOMPU NATURAL FOREST
ILG Nurtjahjaningsih

Last modified: 2019-05-24

Abstract


Calophyllum inophyllum is indigenous species and distributed mostly at shoreline areas in Indonesia. Conservation of genetic diversity of this species become important through manage the potency of genetic materials in their natural habitats. This study aimed to assess genetic diversity and structure of C. inophyllum at Dompu natural forest. Leaf samples were collected from 3 natural populations at Dompu regency i.e. Kilo, Kempo and Pekat. Genetic analysis was carried out using 6 simple sequence repeats (SSR) markers. Private alleles were only found at Kilo population. Number of detected alleles (NA), values of alleles diversity (AR) and gene diversity (HE) was also higher at Kilo (NA: 17; AR: 2.219; HE: 0.339) than at Kempo (NA: 10; AR: 1.661; HE: 0.219) and Pekat (NA: 12; AR: 1.941; HE: 0.276). Values of inbreeding coefficient (FIS) were insignificant at any populations. Wide scale genetic structure showed that Kempo genetically closed to Pekat; while Kilo was another cluster from the two populations. Fine scale genetic structure analysis showed insignificant genetic structure among trees in distance of 2 m at Kilo and 400 m at Pekat, respectively; suggesting that C. inophyllum had dispersed as far as 2 m to 400 m.


Keywords


genetic diversity; genetic relationship; wide scale; fine scale

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