Revistes Catalanes amb Accés Obert (RACO)

A preliminary examination of genetic diversity in the Indian false vampire bat Megaderma lyra

K. Emmanuvel Rajan, G. Marimuthu

Resum


Habitat loss and fragmentation have serious consequences for species extinction as well as genetic diversity within a species. Random Amplified Polymorphic DNA (RAPD) analysis was employed to assess the
genetic diversity within and between four natural populations of M. lyra. Our results suggest that the
genetic diversity varied from 0.21 to 0.26 with a mean of 0.11 to 0.13 (± SD). The mean Gst value of 0.15
was obtained from all four populations and estimated average Nm (1.41) showing gene flow between the
populations. AMOVA analysis showed 88.96% within and 11.04% among the studied populations. Cluster
analyses of RAPD phenotypes showed that specimens were not grouped by geographical origin. The
genetic diversity found in the M. lyra population may be explained by its breeding behaviors. Though
preliminary, the results indicate that all four populations should be considered to maintain the genetic
diversity.

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