Open AccessIsozyme Variation in Natural Populations of Eucalyptus Micvotheca
Author(s) -
Li Chunyang
Publication year - 1999
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1999.00117.x
Subject(s) - biology , upgma , genetic diversity , genetic variation , dendrogram , genetic distance , genetic variability , locus (genetics) , allele , evolutionary biology , isozyme , population , genetics , natural population growth , population genetics , genotype , gene , enzyme , biochemistry , demography , sociology
The genetic diversity and the genetic differentiation of 12 natural populations of Eurulypfus mirrothecu were investigated by means of isozyme variation at 13 loci in 9 enzyme systems. The mean number of alleles per locus was 2.25 and 62.2% of loci were polymorphic (95% criterion for polymorphism). The mean observed and expected heterozygosities were 0.150 and 0.199, respectively. Levels of genetic diversity were similar to other Euculyptus species which have widespread distributions. Most of the diversity was located within populations, only 10.36% of the total genetic diversity was due to differentiation among populations. Cluster analysis based on unbiased genetic distance and the UPGMA dendrogram revealed low level of genetic distance among populations. The results indicated that the majority of species' genetic variation was found within each population and there was high genetic similarity among natural populations of E. microthecu.