Related Experiment Video
Updated: Aug 16, 2026

Determination of Self- and Inter-(in)compatibility Relationships in Apricot Combining Hand-Pollination, Microscopy and Genetic Analyses
Published on: June 16, 2020
Determination of inter- and intra-species genetic relationships among six Eucalyptus species based on inter-simple
T Balasaravanan1, P Chezhian, R Kamalakannan
1Plant Biotechnology Division, Institute of Forest Genetics and Tree Breeding, Forest Campus, R.S. Puram, Coimbatore-641002, Tamil Nadu, India.
Abstract:
Eucalyptus is the most economically important hardwood plantation tree cultivated in tropical and subtropical countries. Inter-simple sequence repeat (ISSR) markers were used to evaluate genetic relationships within and between individuals of six Eucalyptus species. A total of 583 loci (265 to 1535 bp) were amplified from 149 individuals belonging to the six Eucalyptus species using seven ISSR primers (two to three nucleotide repeats anchored with one or two nucleotides at the 3' or 5' region). The ISSR fragments indicated significant polymorphism and genetic diversity among the individuals. Cluster analysis and principal component analysis revealed the occurrence of wide genetic diversity among populations of E. tereticornis Sm., E. camaldulensis Dehnh. and E. urophylla S.T. Blake and narrow genetic diversity among populations of E. citriodora Hook. and E. grandis W. Hill ex Maiden. Genetic diversity was high in E. tereticornis Sm. (47.27%) and low in E. citriodora (18.64%). Maximum Nei's genetic identity (0.897) was observed between E. camaldulensis and E. tereticornis species, whereas maximum genetic diversity (0.286) was found between individuals of E. citriodora and E. grandis.
Related Concept Videos
Evolutionary Relationships through Genome Comparisons
Modern Molecular Taxonomy
Applications of Molecular Taxonomy
Phylogenetic Species Concept in Microbiology
Microbial Phylogeny
Gene Evolution - Fast or Slow?
In contrast, regions which code...
