Organellar Genome Diversity in Saccharum and Erianthus spp. revealed by PCR-RFLP  

Nerkar G. , Farsangi F. , Devarumath R.
Molecular Biology and Genetic Engineering Division, Vasantadada Sugar Institute, Manjari (Bk.), Pune- 412307, Maharashtra, INDIA
Author    Correspondence author
Molecular Plant Breeding, 2015, Vol. 6, No. 11   doi: 10.5376/mpb.2015.06.0011
Received: 24 Apr., 2015    Accepted: 03 Jun., 2015    Published: 19 Jun., 2015
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Nerkar et al., Organellar Genome Diversity in Saccharum and Erianthus spp. revealed by PCR-RFLP, Molecular Plant Breeding, 2015, Vol.6, No. 11 1-11 (doi: 10.5376/mpb.2015.06.0011)


The organellar genome diversity in Saccharum and Erianthus species was analysed by chloroplast deoxyribonucleic acid (cpDNA) and mitochondrial deoxyribonucleic acid (mtDNA) polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Six different chloroplast primers (psbC-trnS, trnL, psaA, clpP, matK and ccsA); and ten mitochondrial primers (nad1, nad4/1-2, nad4/2-3, nad5/1-2, nad5/4-5, 18S-5SrRNA, coxI, matR, cob and mttb) were used to amplify the genes/intergenic spacers of 8 different members of Saccharum complex namely S. officinarum, S. robustum, S. spontaneum, S. barberi, E. arundinaceus, E. ciliaris, E. elegans and CoC 671 (S. officinarum hybrid). The amplified PCR-products were digested with ten different restriction enzymes namely AluI, BamHI, BglII, DraI, EcoRI, HaeIII, HindIII, HinfI and PstI, TaqI. Our results suggest that although monomorphic bands were observed with the PCR using chloroplast and mitochondrial primers; there exists restriction fragment length polymorphism in these genes/intergenic spacers. Out of the sixty primer-enzyme combinations studied, thirty primer-enzyme combinations revealed cpPCR-RFLP while out of hundred primer-enzyme combinations studied fifty-seven primer-enzyme combinations revealed mtPCR-RFLP in sugarcane. Differentiation in Saccharum and Erianthus species was found in the psbC-trnS region of the chloroplast digested using enzyme HaeIII and also in the trnL region digested using enzyme TaqI. One new finding in our work was the mtPCR-RFLP revealed by nad4/2-3region restriction digested using enzyme AluI which was able to differentiate Saccharum species and Erianthus species. Our results may add to the knowledge about organellar genome diversity in sugarcane and may be useful for identification of sugarcane hybrids.

PCR-RFLP; Chloroplast genome diversity; Mitochondria genome diversity; Sugarcane; nad4/2-3
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