Genetic Diversity of Michelia champaca Seed Source in Lahat, SouthSumatera; Implication for the Seed Source Management

ABSTRACT

Michelia champaca L. is one of valuable timber tree species, where its natural population is almost extinct in some areas. In South Sumatera this species is already widely cultivated by the local community. The aim of this research was to assess genetic diversity of the species seed source in order to suggest appropriate management strategies for producing seed. Genetic diversity was analyzed using 5 selective RAPD primers which produced 22 polymorphic loci. Genetic variation of M. champaca was ranged from 0.1000 to 0.2560. The highest genetic diversity was shown by Lahat1-poles, and the lowest was possessed by Lahat 1-seedlings. Two distinct clusters were clearly identified. The first cluster comprised groups from Lahat 1, and the second cluster consisted of Lahat2. The grouping revealed the origin of the groups. The two populations were established from different population, provenance or mother trees. High inbreeding caused by a non-random mating system of mother trees may account for the genetic degradation of M. champaca in Lahat. Lahat1 population have been certified as seed source of the species, not to Lahat2. However, according to the location of both populations and different genetic structure, is better to combine both populations as one seed source.

Keywords: Michelia champaca, RAPD, genetic diversity, seed source management

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Informasi Detil

Judul Seri

Proceeding INAFOR (Internasional Conference of Indonesia Forestry Researchers

No. Panggil

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Penerbit

: ., 2012

Deskripsi Fisik

176-181

Bahasa

English

ISBN/ISSN

978-979-8452-45-1

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subyek

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