Genetic variation of Juglans sinensis in Korea
1997
Lee, S.W. | Lee, M.H.
The genetic diversity and structure of 8 Korean populations of Juglans sinensis (D.C.) DODE, an introduced and a semi- domesticated crop plant, was examined. Korean J. sinensis populations had notably less allozyme diversity than most other tree species with similar ecological characteristics, however, showed similar level of genetic diversity in Italian populations of J. regia. For examplel 33.7% of the 13 loci examined were polymorphic, the mean number of alleles per locus was 1.40, and mean expected heterozygosity was 0.088. A considerable high level of heterozygote deficiency was observed in Korean populations of J. sinensis (mean F-IS = 0.156). About 12% of the total genetic variation was found among populations (mean F-ST = 0.122). Indirect estimated of the number of migrants per generation (N-m=1.80) indicated that gene flow among populations was relatively low. There was little relationship between geographic and genetic distance between pairs of populations. Factors contributing to the low level of genetic diversity and moderate level of genetic differentiation found in Korean J. sinensis populations include founder effect, some level of inbreeding, the narrow and discontinuous distribution and probably man's impacts.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل ZB MED Nutrition. Environment. Agriculture