Microsatellites, tandem repeats of short nucleotide (1-6 bp) sequences, are the DNA marker of choice because of their highly polymorphic, ubiquitous distribution within genome, ease of genotyping through polymerase chain reaction (PCR), selectively neutral, co-dominant and multi allelic nature. Six microsatellites, three polymorphic and three monomorphic, have been characterized for the first time in a bamboo species, Bambusa arudinacea belonging to the family Poaceae. The number of alleles per locus ranges form 2 to 13. Allelic diversity ranges from 0.041 to 0.870. Polymorphic information content (PIC) values for two loci were > 0.3, an indicator of polymorphic allele. Cross species amplification has been tested in other 18 bamboo species. Monomorphic simple sequence repeats (SSRs) have been found to be cross amplified in most of the tested species while polymorphic ones in only three to four species. The utility of the SSR loci in genetic diversity study of B. arundinacea and other cross amplified bamboo species have been discussed.
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