Genetic variation of Vanda foetida J.J.Sm.; a rare and endemic orchid in South Sumatra based on RAPD analysis

Rindyastuti Ridesti, . and Metusala Destario, . and Dian Aruni Kumalawati, . and Daryono Budi Setiadi, . Genetic variation of Vanda foetida J.J.Sm.; a rare and endemic orchid in South Sumatra based on RAPD analysis. pp. 99-112. ISSN 1823-3902

Vanda foetida J.J.Sm. which is an endemic orchid species in Sumatra has taxonomically disappeared for over 100 years since it was described in 1906. The distribution of V. foetida was limited due to over-exploitation of this orchid and changes to land-use. The study of genetic variation of V. foetida in its natural habitat Mount Dempo and Padiampe South Sumatra was conducted based on Random Amplified Polymorphic DNA (RAPD) analysis for genetic variation using 8 primers (OPU 3 OPU 5 OPU 6 OPU 7 OPU 12 OPU 13 OPU 14 and OPU 16). Genetic variation in each population was detected by h value (Neis genetic diversity) which was 0.1999 and 0.1778 for Mount Dempo and Padiampe respectively. This value was higher compared to those of other rare orchid species even though it only has a small population. V. foetida originated from two populations forming two main clusters in dendrogram with 67 (0.67) degree of similarity. The dendrogram indicated that the two populations are connected and assumed as one large population in the past and were separated from larger population by habitat fragmentation. This species was not genetically in danger and will be able to survive if its natural habitats are remained.

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Abstract

Vanda foetida J.J.Sm. which is an endemic orchid species in Sumatra has taxonomically disappeared for over 100 years since it was described in 1906. The distribution of V. foetida was limited due to over-exploitation of this orchid and changes to land-use. The study of genetic variation of V. foetida in its natural habitat Mount Dempo and Padiampe South Sumatra was conducted based on Random Amplified Polymorphic DNA (RAPD) analysis for genetic variation using 8 primers (OPU 3 OPU 5 OPU 6 OPU 7 OPU 12 OPU 13 OPU 14 and OPU 16). Genetic variation in each population was detected by h value (Neis genetic diversity) which was 0.1999 and 0.1778 for Mount Dempo and Padiampe respectively. This value was higher compared to those of other rare orchid species even though it only has a small population. V. foetida originated from two populations forming two main clusters in dendrogram with 67 (0.67) degree of similarity. The dendrogram indicated that the two populations are connected and assumed as one large population in the past and were separated from larger population by habitat fragmentation. This species was not genetically in danger and will be able to survive if its natural habitats are remained.

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Item Type:	Article
AGROVOC Term:	Orchidaceae
AGROVOC Term:	Vanda
AGROVOC Term:	Genetic variation
AGROVOC Term:	RAPD
AGROVOC Term:	Plant population
AGROVOC Term:	Habitats
AGROVOC Term:	Endemic species
AGROVOC Term:	Genetic diversity within species
AGROVOC Term:	Plant population
AGROVOC Term:	Germplasm conservation
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8048

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