Lack of allozyme variation in Larix sukaczewii Dyl. from the southern Urals
1997
Timerjanov, A.S.
Populations of Larix sukaczewii DYL. in the Southern Urals have been studied using 20 isozyme loci controlling 12 gene- enzyme systems. The heterozygosity observed in populations averaged 0.042+/-0.012, with an expected value of 0.043+/- 0.010. The proportion of polymorphic loci was 0.31+/-0.08 and 0.64+/-0.07, according to the 95% and 99% criterion of polymorphism, respectively. The average number of alleles per locus was 1.14+/-0.03. These estimates are less than those reported for larches. Approximately 3% of the total genetic diversity occured among populations and the remainder (about 97%) resides within populations. The mean NEI's and GREGORIUS'S genetic distances over all pairs of Larix sukaczewii populations were0.01 and 0.08, respectively. There was no statistically significant relationship (P below 0.05) between genetic distance and linear geographic distance.
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