Genetic relationship of Curcuma species from Northeast India using PCR-based markers.
Molecular genetic fingerprints of nine Curcuma species from Northeast India were developed using PCR-based markers. The aim involves elucidating there intra- and inter-specific genetic diversity important for utilization, management, and conservation. Twelve random amplified polymorphic DNA (RAPD), 19 Inter simple sequence repeats (ISSRs), and four amplified fragment length polymorphism (AFLP) primers produced 266 polymorphic fragments. ISSR confirmed maximum polymorphism of 98.55% whereas RAPD and AFLP showed 93.22 and 97.27%, respectively. Marker index and polymorphic information content varied in the range of 8.64-48.1, 19.75-48.14, and 25-28 and 0.17-0.48, 0.19-0.48, and 0.25-0.29 for RAPD, ISSR, and AFLP markers, respectively. The average value of number of observed alleles, number of effective alleles, mean Nei's gene diversity, and Shannon's information index were 1.93-1.98, 1.37-1.62, 0.23-0.36, and 0.38-0.50, respectively, for three DNA markers used. Dendrograms based on three molecular data using unweighted pair group method with arithmetic mean (UPGMA) was congruent and classified the Curcuma species into two major clusters. Cophenetic correlation coefficient between dendrogram and original similarity matrix were significant for RAPD (r = 0.96), ISSR (r = 0.94), and AFLP (r = 0.97). Clustering was further supported by principle coordinate analysis. High genetic polymorphism documented is significant for conservation and further improvement of Curcuma species.
Department of Biotechnology, Indian Institute of Technology Guwahati, North Guwahati, 781 039, Assam, India.
Archana
A
Das
Vigya
V
Kesari
Vinod M
VM
Satyanarayana
Ajay
A
Parida
Latha
L
Rangan
D000483:Alleles; D054458:Amplified Fragment Length Polymorphism Analysis / Q000379:methods; D030024:Curcuma / Q000145:classification* / Q000235:genetics*; D017931:DNA Primers / Q000235:genetics; D018744:DNA, Plant / Q000235:genetics*; D005819:Genetic Markers; D007194:India; D018895:Microsatellite Repeats; D005810:Multigene Family; D011110:Polymorphism, Genetic; D019105:Random Amplified Polymorphic DNA Technique / Q000379:methods
D017931:DNA Primers; D018744:DNA, Plant; D005819:Genetic Markers
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