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IJBT Vol.11(1) [January 2012] >


Title: Genetic variation and diversity of two brachyuran crab species (Sesarma brockii and Grapsus strigosus) in an artificially developed mangrove ecosystem
Authors: Thangaraj, M
Thirumaraiselvi, R
Subburaj, J
Keywords: Brachyuran Crab
Genetic Diversity
Grapsus Strigosus
RAPD
Sesarma Brockii
Issue Date: Jan-2012
Publisher: NISCAIR-CSIR, India
Abstract: The random amplified polymorphic DNA (RAPD) analysis was used to estimate the genetic relationships and diversity of two brachyuran crab species (Sesarma brockii & Grapsus strigosus) in an artificially developed mangrove ecosystem. Ten arbitrary primers were screened to identify species-specific RAPD markers in S. brockii and G. strigosus. On average about 26% scorable RAPD bands were specific to each species. Gene diversity (H) in S. brockii and G. strigosus was 0.0589±0.0457 and 0.0056±0.0052, respectively. The genetic distance between S. brockii and G. strigosus was 1.2714. Phylogenetic analysis revealed that these two species grouped into separate clusters emphasizing the distinct species status.
Page(s): 111-113
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0967 (Online); 0972-5849 (Print)
Source:IJBT Vol.11(1) [January 2012]

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