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Research Article
Genetic Relationships in a Population of Nelumbo nucifera Gaertn. (Nelumbonaceae)

Arunrat Chaveerach, Runglawan Sudmoon, Tawatchai Tanee, Piya Mokkamul and Alongkoad Tanomtong

Journal of Biological Sciences, 2007, 7(8), 1388-1393.

Abstract

To study genetic diversity and similarity, 15 individuals of Nelumbo nucifera from NE and C Thailand were collected according to their geographical areas and the morphological differences among individual characters, such as the color of tepals, the absence or presence of petaloid staminodes and petaloid stamens. These studied samples were analyzed to determine a genetic similarity and diversity profile using sixteen inter-simple sequences repeat (ISSR) markers. A dendrogram was constructed and showed similarity values of the species between 84.10-95.00%. The samples produced 46.09% polymorphic banding profiles. The genetic diversity (H) in this population was estimated using the Shannon`s index. The genetic diversity (H) value of 1.581 reflected the broad range of distribution sites, which would require high genetic diversity to adapt to the environmental variations that can be found between NE and C. The Mantel test of 0.061 revealed that geographical distance is an important factor affecting the genetic distance among the studied samples.

ASCI-ID: 38-1538

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