Please use this identifier to cite or link to this item:
http://repository.ipb.ac.id/handle/123456789/53811
Title: | Keragaman Genetik dan Sistem Perkawinan pada Tegakan Benih Mindi (Melia azedarach Linn.) di Wanayasa, Purwakarta Genetic diversity and mating system in a seed stand of Mindi (Melia azedarach Linn.), Wanayasa, Purwakarta |
Authors: | Siregar, Iskandar Z. Azizah |
Keywords: | Bogor Agricultural University (IPB) Mindi Microsatellite Mating system Seed Stand Genetic diversity |
Issue Date: | 2011 |
Abstract: | Mindi is a fast growing species belonging to family Meliaceae which is potential to be developed in community forest. Efforts to increase productivity of mindi seed stand require basic knowledge on genetic diversity and mating system. The sexual flower character of mindi is of hermaphrodite type raising a question about the mating system of Mindi. Genetic diversity and mating system characteristics of mindi can be analyzed by microsatellite. This study was aimed to i) cross-amplify microsatellite primers of Mahogany (Swietenia spp) and Neem (Azadirachta indica) in Mindi, ii) estimate genetic variation of mother trees and their offspring and iii) characterize the parameters of mating system of a mindi seed stand. The samples for DNA analysis were 10 mother trees and their respective offspring (n=5). Specific primers Ai-05 and Ai-34 from Neem and SM45 from Mahogany was successfully amplified in Mindi. Data analysis using POPgene version 1.31 showed the average values of genetic diversity of He=0.565 in the seed stand population. Mating system analysis analyzed by multilocus mating system program showed outcrossing values of tm= ts = 1.00 based on the method of expected maximum (EM). These findings indicated that Mindi in the seed stand Wanayasa is predominantly outcrosser. Basic information on the mating system characteristics of Mindi may be used for effective management for increasing the productivity of seed stands. Mindi merupakan salah satu jenis cepat tumbuh dari famili Meliaceae yang berpotensi untuk dikembangkan di Hutan Rakyat. Upaya peningkatan produktivitas mindi memerlukan informasi dasar terkait keragaman genetik dan sistem perkawinannya. Sifat bunga hermaprodit mindi menimbulkan pertanyaan tentang bagaimana sistem perkawinan yang terjadi dalam populasi mindi. Untuk itu diperlukan analisis keragaman genetik dan tipe perkawinan mindi yang dapat diduga dengan bantuan teknik mikrosatelit. Penelitian ini bertujuan untuk i) mengetahui amplifikasi silang primer mikrosatelit jenis Mahoni (Swietenia spp) dan Mimba (Azadirachta indica) pada jenis Mindi (Melia azedarach Linn.), ii) menduga variasi genetik indukan dan anakan dari tegakan benih Mindi serta iii) mengkarakterisasi parameter sistem perkawinan di tegakan benih Wanayasa (Purwakarta). Sampel yang digunakan terdiri atas 10 pohon induk mindi dan keturunannya masing-masing sebanyak 5 anakan. Primer spesifik Ai-05 dan Ai-34 (jenis mimba) serta SM45 (jenis mahoni) dapat diamplifikasikan pada mindi. Analisis data menggunakan software POPgene versi 1.31 menunjukkan rata-rata keragaman genetik (He) dalam populasi sebesar 0.565. Analisis sistem perkawinan dilakukan dengan bantuan software MLTR (Multilocus Mating System Program) yang menunjukkan nilai outcrossing tm=ts=1,000 berdasarkan metode Expected Maximum (MLTR). Nilai tersebut menunjukkan bahwa mindi di tegakan benih Wanayasa secara umum melakukan perkawinan silang. Informasi mengenai sistem perkawinan ini dapat dimanfaatkan untuk mengetahui cara efektif yang diperlukan untuk tujuan pengelolaan sumber benih. |
URI: | http://repository.ipb.ac.id/handle/123456789/53811 |
Appears in Collections: | UT - Silviculture |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Abstract.pdf Restricted Access | Abstract | 305.57 kB | Adobe PDF | View/Open |
Abstrak.pdf Restricted Access | Abstrak | 306.55 kB | Adobe PDF | View/Open |
BAB I Pendahuluan.pdf Restricted Access | Bab I | 281.2 kB | Adobe PDF | View/Open |
BAB II Tinjauan Pustaka.pdf Restricted Access | Bab II | 560.29 kB | Adobe PDF | View/Open |
BAB III Metode Penelitian.pdf Restricted Access | Bab III | 425.44 kB | Adobe PDF | View/Open |
BAB IV Hasil dan Pembahasan.pdf Restricted Access | Bab IV | 406.06 kB | Adobe PDF | View/Open |
BAB V Kesimpulan dan Saran.pdf Restricted Access | Bab V | 277.96 kB | Adobe PDF | View/Open |
Cover.pdf Restricted Access | Cover | 295.27 kB | Adobe PDF | View/Open |
Daftar Pustaka.pdf Restricted Access | Daftar Pustaka | 293.13 kB | Adobe PDF | View/Open |
E11azi.pdf Restricted Access | Full text | 1.36 MB | Adobe PDF | View/Open |
Lampiran.pdf Restricted Access | Lampiran | 578.71 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.