Plant Diversity ›› 1998, Vol. 20 ›› Issue (01): 1-3.
• Articles •
ZHANG Hui,LIU Liu
Allozyme genetic variability in 9 populations of Castanea molltaima was investigated using starch gel electrophoresis at 12 loci coding for 11 enzyme systems. The level of genetic polymorphismand population differentiation was greater in C mollissima than was usual for an outbreeding species, with the proportion of polymorphic loci (P) 71 .3 %, average number of alleles (A) 2.27, average expected heterozygosity (He) 0.346. About 89.3% of the total genetic variation was partitioned within populations. The Nei's genetic distance ranged from 0.010- 0. 177. Excep;for these, a principal components analysis of the data based on allelic frequencies revealed a spa-tial pattern of genetic variability in Chinese chestnut and provide some data about selecting enzyme marker. Based on previous research, the effect of artificial selection on the genetic diversi-ty of C. mollissima was also studied and it could be inferred that the southwest area of China was the possible center of the genetic diversity.
ZHANG Hui,LIU Liu. The Genetic Diversity of Castanea mollissima and the Effect of Artificial Selection[J]. Plant Diversity, 1998, 20(01): 1-3.
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