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      KERAGAMAN GENETIK POPULASI SPESIES RENTAN EBONI (Diospyros celebica Bakh.) ENDEMIK SULAWESI

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      Date
      2026
      Author
      SIBURIAN, SITI LABORA
      Siregar, Iskandar Zulkarnaen
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      Abstract
      Sumberdaya genetik yang dimiliki hutan hujan tropis Indonesia sangatlah melimpah. Sebagian sumber daya genetik tersebut telah hilang karena luasnya kerusakan hutan di Indonesia. Penebangan liar, kebakaran hutan, dan eksploitasi menjadi salah satu penyebab cepatnya kerusakan hutan yang mengancam sumber daya genetik dalam suatu populasi. Keragaman genetik eboni (Diospyros celebica) diduga sudah menurun akibat tidak diperhatikannya aspek kelestarian jenis pohon, namun ketersediaan data keragaman genetik masih sangat terbatas. Tujuan penelitian ini adalah untuk menduga variasi genetik dan mengetahui struktur genetik eboni pada 12 populasi alami. Analisis keragaman genetik dilakukan menggunakan penanda ccmp (consensus chloroplast microsatellite primers) yang ditemukan di genom kloroplas. Berdasarkan lima penanda ccmp yang polimorfik, sebanyak 12 populasi eboni memiliki keragaman genetik yang cukup tinggi dengan nilai heterozigositas (He) sebesar 0,525. Selain itu, hasil penelitian menjukkan bahwa pola kekerabatan genetik terstruktur sangat jelas, dimana populasi terbagi menjadi 2 klaster besar. Informasi genetik yang diperoleh dapat digunakan untuk membantu penyusunan strategi konservasi sumberdaya genetik berbasis sains.
       
      Indonesia’s tropical rainforests harbor exceptionally rich genetic resources. However, a substantial portion of these resources has been lost due to extensive forest degradation. Illegal logging, forest fires, and overexploitation are among the major drivers of rapid forest destruction, threatening the genetic resources within natural populations. The genetic diversity of ebony (Diospyros celebica) is suspected to have declined due to insufficient attention to species conservation, yet available genetic diversity data remain very limited. This study aimed to estimate genetic variation and assess the genetic structure of ebony across 12 natural populations. Genetic diversity analysis was conducted using ccmp (consensus chloroplast microsatellite primer) markers located in the chloroplast genome. Based on five polymorphic ccmp markers, the 12 ebony populations exhibited relatively high genetic diversity, with an expected heterozygosity (He) value of 0.525. The results also revealed a clearly structured genetic relationship pattern, with populations grouped into two major clusters. The genetic information obtained from this study can support the development of science-based conservation strategies for genetic resource management.
       
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      http://repository.ipb.ac.id/handle/123456789/172827
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      • UT - Silviculture [1450]

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      Copyright © 2020 Library of IPB University
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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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